This document provides a step-by-step guide to setting up synchronous volume replication over a WAN between two systems using Open-E DSS. It requires configuring hardware including two servers connected over a WAN. It then outlines 6 steps to set up the replication including 1) hardware configuration, 2) configuring DSS servers on the WAN, 3) configuring the destination node, 4) configuring the source node, 5) creating the replication task, and 6) checking replication status. Diagrams and explanations of each step in the configuration process are provided.
Step-by-Step Guide to NAS (NFS) Failover over a LAN (with unicast) Supported ...open-e
The document provides step-by-step instructions for configuring NAS (NFS) failover over a LAN using Open-E DSS. It describes setting up two servers with mirrored volumes, so that if the primary server fails, operations can fail over to the secondary server. The steps include 1) configuring the network interfaces and bonding on each server, 2) creating mirrored volumes and configuring replication on the primary and secondary servers, and 3) enabling NFS and sharing the volume to allow access from clients. This configuration provides data redundancy and high availability over a local network.
1) The document discusses how to configure port forwarding (virtual server) on various ASUS router models to allow remote access to network services and applications like BitTorrent that normally cannot be accessed from outside the local network due to NAT.
2) It provides examples of setting up port forwarding for BitTorrent on WL-5xx, WL-600g, WL-700gE, RX3041/SL200, and SL500/SL1000/SL1200 routers, with screenshots of the configuration pages and steps to configure the external and internal ports and the local server IP address.
3) In addition to BitTorrent, it lists many common network services, protocols, and applications along with their default TCP
Couchbase Server 2.0 - XDCR - Deep diveDipti Borkar
Couchbase Server 2.0 introduces Cross Data Center Replication (XDCR) which allows replication of data between Couchbase clusters across different data centers or regions. XDCR replicates data in real-time for high availability and disaster recovery. Replication is configured on a per-bucket basis and supports both unidirectional and bidirectional replication topologies. XDCR provides eventual consistency and conflict resolution when documents are modified in both clusters. Administrators can monitor ongoing replications and view detailed replication status and progress.
The document provides step-by-step instructions for building and running Intel DPDK sample applications on a test environment with 3 virtual machines connected by 10G NICs. It describes compiling and running the helloworld, L2 forwarding, and L3 forwarding applications, as well as using the pktgen tool for packet generation between VMs to test forwarding performance. Key steps include preparing the Linux kernel for DPDK, compiling applications, configuring ports and MAC addresses, and observing packet drops to identify performance bottlenecks.
This document summarizes the architecture of a SAN (storage area network) used for virtualization. It discusses the hardware components including HP EVA storage arrays, HP Blade servers, and a SAN Director. It describes how virtual machines are hosted on ESX servers and managed with features like VMotion, HA, DRS, and snapshots to provide high availability and optimize resource utilization. The SAN architecture allows consolidation of physical servers and storage onto virtual resources for improved flexibility, manageability and disaster recovery.
Step-by-Step Guide to NAS (NFS) Failover over a LAN (with unicast) Supported ...open-e
The document provides step-by-step instructions for configuring NAS (NFS) failover over a LAN using Open-E DSS. It describes setting up two servers with mirrored volumes, so that if the primary server fails, operations can fail over to the secondary server. The steps include 1) configuring the network interfaces and bonding on each server, 2) creating mirrored volumes and configuring replication on the primary and secondary servers, and 3) enabling NFS and sharing the volume to allow access from clients. This configuration provides data redundancy and high availability over a local network.
1) The document discusses how to configure port forwarding (virtual server) on various ASUS router models to allow remote access to network services and applications like BitTorrent that normally cannot be accessed from outside the local network due to NAT.
2) It provides examples of setting up port forwarding for BitTorrent on WL-5xx, WL-600g, WL-700gE, RX3041/SL200, and SL500/SL1000/SL1200 routers, with screenshots of the configuration pages and steps to configure the external and internal ports and the local server IP address.
3) In addition to BitTorrent, it lists many common network services, protocols, and applications along with their default TCP
Couchbase Server 2.0 - XDCR - Deep diveDipti Borkar
Couchbase Server 2.0 introduces Cross Data Center Replication (XDCR) which allows replication of data between Couchbase clusters across different data centers or regions. XDCR replicates data in real-time for high availability and disaster recovery. Replication is configured on a per-bucket basis and supports both unidirectional and bidirectional replication topologies. XDCR provides eventual consistency and conflict resolution when documents are modified in both clusters. Administrators can monitor ongoing replications and view detailed replication status and progress.
The document provides step-by-step instructions for building and running Intel DPDK sample applications on a test environment with 3 virtual machines connected by 10G NICs. It describes compiling and running the helloworld, L2 forwarding, and L3 forwarding applications, as well as using the pktgen tool for packet generation between VMs to test forwarding performance. Key steps include preparing the Linux kernel for DPDK, compiling applications, configuring ports and MAC addresses, and observing packet drops to identify performance bottlenecks.
This document summarizes the architecture of a SAN (storage area network) used for virtualization. It discusses the hardware components including HP EVA storage arrays, HP Blade servers, and a SAN Director. It describes how virtual machines are hosted on ESX servers and managed with features like VMotion, HA, DRS, and snapshots to provide high availability and optimize resource utilization. The SAN architecture allows consolidation of physical servers and storage onto virtual resources for improved flexibility, manageability and disaster recovery.
The document describes a lab experiment with 4 switches to observe per-VLAN spanning tree behavior. It explains that VLANs 10 and 20 were configured on all switches with DLS1 set as the root bridge for VLAN 10 and DLS2 for VLAN 20. This resulted in different port roles and root bridges for each VLAN when viewed with the show spanning-tree command.
Dell Technologies Dell EMC Data Protection Solutions On One Single Page - POS...Smarter.World
The Dell EMC Data Protection solutions and specifications on one single page.
Dell Technologies is a unique family of businesses that provides the essential infrastructure for organizations to build their digital future, transform IT and protect their most important asset, information.
ISO A0 poster edition - v2 October 2019
Dell Technologies Dell EMC ISILON Storage On One Single Page - POSTER - v1a S...Smarter.World
The Dell EMC ISILON storage system specifications on one single page.
Dell Technologies is a unique family of businesses that provides the essential infrastructure for organizations to build their digital future, transform IT and protect their most important asset, information.
ISO A0 poster edition - v1a September 2019
This document provides instructions for setting up a basic Linux Virtual Server (LVS) using one of three forwarding methods: LVS-NAT, LVS-DR, or LVS-Tun. It discusses the minimum hardware and software requirements, including needing at least three machines - one client, one director, and one real server. It also provides examples for setting up an LVS using LVS-NAT and LVS-DR forwarding to provide the telnet and HTTP services. The document is intended to help users quickly set up a basic demonstration LVS without requiring an in-depth understanding of how LVS works under the hood.
This document summarizes the development of low latency capabilities in the Linux 2.6 kernel for realtime audio applications. Early 2.6 kernels had significantly worse latency than patched 2.4 kernels. With input from the audio community, kernel developers like Ingo Molnar addressed issues that caused latency in areas like the BKL lock, IDE drivers, VM and VFS code. Their work improved tracing of latency issues and incorporated fixes directly into the mainline kernel or via patch sets. While progress was made, some softirq challenges remain for fully reliable low latency audio on Linux.
Seven years ago at LCA, Van Jacobsen introduced the concept of net channels but since then the concept of user mode networking has not hit the mainstream. There are several different user mode networking environments: Intel DPDK, BSD netmap, and Solarflare OpenOnload. Each of these provides higher performance than standard Linux kernel networking; but also creates new problems. This talk will explore the issues created by user space networking including performance, internal architecture, security and licensing.
This document summarizes a presentation about Lagopus, an SDN software switch developed by NTT. Some key points:
- Lagopus aims to provide an SDN-aware switch software stack capable of 100Gbps performance, including an OpenFlow agent and extensible configuration data store.
- Existing virtual switches do not provide sufficient performance for carrier networks. Lagopus takes a simplified, modular design compiled using DPDK for high-performance packet processing.
- An FPGA-based 40GbE NIC was developed to offload processing tasks like encryption and packet scheduling for improved performance.
- Evaluation shows Lagopus can achieve wire-rate throughput of 10Gbps and support over 1 million flow
This document discusses the need for organizations to deploy IPv6 networking, as IPv4 addresses are nearing exhaustion. It provides an overview of requesting IPv6 allocations from registries, addressing plans, and basic configuration of IPv6 on routers, Linux servers, and DNS. The document also offers IPv6 connectivity and assistance to deploy IPv6 from Init7, and provides additional IPv6 information links.
The NextStream is a high-density 2U rack-mount server platform that can accommodate up to 6 processors and 2 GPUs. It supports single-width and double-width blades, each with up to 2 processors, 32GB RAM, and dual Gigabit Ethernet connectivity. The chassis features redundant power supplies and cooling fans, and integrated switching allows networking of multiple systems. It is suitable for applications requiring high-throughput streaming or a mix of CPU and GPU processing.
The document discusses accessing the virtual router in a CloudStack KVM environment. It explains that the virtual router can be accessed by SSHing into its link local IP address from the compute node it is running on. When logging in, it is shown that the link local IP address may change if the virtual router is restarted. The internal interfaces, routing tables, and network configuration of the running virtual router are then displayed and examined.
The document provides an evaluation report of DaStor, a Cassandra-based data storage and query system. It summarizes the testbed hardware configuration including 9 nodes with 112 cores and 144GB RAM. It also describes the DaStor configuration, data schema for call detail records (CDR), storage architecture with indexing scheme, and benchmark results showing a throughput of around 80,000 write operations per second for the cluster.
Here are some useful GDB commands for debugging:
- break <function> - Set a breakpoint at a function
- break <file:line> - Set a breakpoint at a line in a file
- run - Start program execution
- next/n - Step over to next line, stepping over function calls
- step/s - Step into function calls
- finish - Step out of current function
- print/p <variable> - Print value of a variable
- backtrace/bt - Print the call stack
- info breakpoints/ib - List breakpoints
- delete <breakpoint#> - Delete a breakpoint
- layout src - Switch layout to source code view
- layout asm - Switch layout
Dell Technologies Dell EMC POWERMAX Storage On One Single Page - POSTER - v1a...Smarter.World
The Dell EMC PowerMax storage system specifications on one single page.
Dell Technologies is a unique family of businesses that provides the essential infrastructure for organizations to build their digital future, transform IT and protect their most important asset, information.
ISO A0 poster edition - v1a September 2019
This document provides specifications for several networking and printing devices:
- The Cisco Xtreme N Storage Router provides 802.11n wireless networking with features like access control lists and parental controls.
- The Cisco SF200 switches include 24-port and 48-port models with PoE, SFP uplinks, and management features like VLAN and QoS.
- The Dell 2350dn laser printer is a mono laser printer that prints up to 40 pages per minute with networking and scanning capabilities.
- The Cisco Aironet 1250 series access points support 802.11a/g/n and include features like 2x3 MIMO, 40MHz channels, and data rates up
The document discusses the DPDK Packet Framework and the ip_pipeline application generator. It describes how the framework uses ports, tables, and actions to quickly develop packet processing pipelines. It also explains how ip_pipeline allows defining packet processing applications by connecting different reusable pipeline types and mapping them across CPU cores. The framework provides a way to build high performance packet processing applications from configurable processing blocks.
DPDK Summit - 08 Sept 2014 - 6WIND - High Perf Networking Leveraging the DPDK...Jim St. Leger
Thomas Monjalon, 6WIND, presents on where/how to use DPDK, the DPDK ecosystem, and the DPDK.org community.
Thomas is the community maintainer of DPDK.org.
Shak larry-jeder-perf-and-tuning-summit14-part1-finalTommy Lee
This document provides an overview and agenda for a performance analysis and tuning presentation focusing on Red Hat Enterprise Linux evolution, NUMA scheduling improvements, and use of cgroups/containers for resource management. Key points include how RHEL has incorporated features like tuned profiles, transparent hugepages, automatic NUMA balancing, and how cgroups can guarantee quality of service and enable dynamic resource allocation for multi-application environments. Performance results are shown for databases and SPEC benchmarks utilizing these features.
Virtual SAN is VMware's hyper-converged infrastructure storage solution that is integrated with vSphere. It provides a software-defined, distributed storage platform that offers policy-based placement and management of virtual machine storage. Version 6.1 introduced new features like stretched clusters for disaster recovery between sites, support for high-density flash devices, and health monitoring and troubleshooting tools through integration with vRealize Operations. Future enhancements may include RAID 5 and 6 functionality over the network to improve storage efficiency as well as data deduplication and compression.
Open-E DSS V7 Synchronous Volume Replication over a LANopen-e
The document provides step-by-step instructions for setting up synchronous volume replication between two Open-E DSS servers over a local area network. It involves configuring hardware, networking, creating logical volumes on the source and destination nodes, setting up replication between the volumes, and creating a replication task to synchronize data from the source to destination volume. The status of replication can be monitored by checking the replication tasks in the DSS management interface.
The document describes a lab experiment with 4 switches to observe per-VLAN spanning tree behavior. It explains that VLANs 10 and 20 were configured on all switches with DLS1 set as the root bridge for VLAN 10 and DLS2 for VLAN 20. This resulted in different port roles and root bridges for each VLAN when viewed with the show spanning-tree command.
Dell Technologies Dell EMC Data Protection Solutions On One Single Page - POS...Smarter.World
The Dell EMC Data Protection solutions and specifications on one single page.
Dell Technologies is a unique family of businesses that provides the essential infrastructure for organizations to build their digital future, transform IT and protect their most important asset, information.
ISO A0 poster edition - v2 October 2019
Dell Technologies Dell EMC ISILON Storage On One Single Page - POSTER - v1a S...Smarter.World
The Dell EMC ISILON storage system specifications on one single page.
Dell Technologies is a unique family of businesses that provides the essential infrastructure for organizations to build their digital future, transform IT and protect their most important asset, information.
ISO A0 poster edition - v1a September 2019
This document provides instructions for setting up a basic Linux Virtual Server (LVS) using one of three forwarding methods: LVS-NAT, LVS-DR, or LVS-Tun. It discusses the minimum hardware and software requirements, including needing at least three machines - one client, one director, and one real server. It also provides examples for setting up an LVS using LVS-NAT and LVS-DR forwarding to provide the telnet and HTTP services. The document is intended to help users quickly set up a basic demonstration LVS without requiring an in-depth understanding of how LVS works under the hood.
This document summarizes the development of low latency capabilities in the Linux 2.6 kernel for realtime audio applications. Early 2.6 kernels had significantly worse latency than patched 2.4 kernels. With input from the audio community, kernel developers like Ingo Molnar addressed issues that caused latency in areas like the BKL lock, IDE drivers, VM and VFS code. Their work improved tracing of latency issues and incorporated fixes directly into the mainline kernel or via patch sets. While progress was made, some softirq challenges remain for fully reliable low latency audio on Linux.
Seven years ago at LCA, Van Jacobsen introduced the concept of net channels but since then the concept of user mode networking has not hit the mainstream. There are several different user mode networking environments: Intel DPDK, BSD netmap, and Solarflare OpenOnload. Each of these provides higher performance than standard Linux kernel networking; but also creates new problems. This talk will explore the issues created by user space networking including performance, internal architecture, security and licensing.
This document summarizes a presentation about Lagopus, an SDN software switch developed by NTT. Some key points:
- Lagopus aims to provide an SDN-aware switch software stack capable of 100Gbps performance, including an OpenFlow agent and extensible configuration data store.
- Existing virtual switches do not provide sufficient performance for carrier networks. Lagopus takes a simplified, modular design compiled using DPDK for high-performance packet processing.
- An FPGA-based 40GbE NIC was developed to offload processing tasks like encryption and packet scheduling for improved performance.
- Evaluation shows Lagopus can achieve wire-rate throughput of 10Gbps and support over 1 million flow
This document discusses the need for organizations to deploy IPv6 networking, as IPv4 addresses are nearing exhaustion. It provides an overview of requesting IPv6 allocations from registries, addressing plans, and basic configuration of IPv6 on routers, Linux servers, and DNS. The document also offers IPv6 connectivity and assistance to deploy IPv6 from Init7, and provides additional IPv6 information links.
The NextStream is a high-density 2U rack-mount server platform that can accommodate up to 6 processors and 2 GPUs. It supports single-width and double-width blades, each with up to 2 processors, 32GB RAM, and dual Gigabit Ethernet connectivity. The chassis features redundant power supplies and cooling fans, and integrated switching allows networking of multiple systems. It is suitable for applications requiring high-throughput streaming or a mix of CPU and GPU processing.
The document discusses accessing the virtual router in a CloudStack KVM environment. It explains that the virtual router can be accessed by SSHing into its link local IP address from the compute node it is running on. When logging in, it is shown that the link local IP address may change if the virtual router is restarted. The internal interfaces, routing tables, and network configuration of the running virtual router are then displayed and examined.
The document provides an evaluation report of DaStor, a Cassandra-based data storage and query system. It summarizes the testbed hardware configuration including 9 nodes with 112 cores and 144GB RAM. It also describes the DaStor configuration, data schema for call detail records (CDR), storage architecture with indexing scheme, and benchmark results showing a throughput of around 80,000 write operations per second for the cluster.
Here are some useful GDB commands for debugging:
- break <function> - Set a breakpoint at a function
- break <file:line> - Set a breakpoint at a line in a file
- run - Start program execution
- next/n - Step over to next line, stepping over function calls
- step/s - Step into function calls
- finish - Step out of current function
- print/p <variable> - Print value of a variable
- backtrace/bt - Print the call stack
- info breakpoints/ib - List breakpoints
- delete <breakpoint#> - Delete a breakpoint
- layout src - Switch layout to source code view
- layout asm - Switch layout
Dell Technologies Dell EMC POWERMAX Storage On One Single Page - POSTER - v1a...Smarter.World
The Dell EMC PowerMax storage system specifications on one single page.
Dell Technologies is a unique family of businesses that provides the essential infrastructure for organizations to build their digital future, transform IT and protect their most important asset, information.
ISO A0 poster edition - v1a September 2019
This document provides specifications for several networking and printing devices:
- The Cisco Xtreme N Storage Router provides 802.11n wireless networking with features like access control lists and parental controls.
- The Cisco SF200 switches include 24-port and 48-port models with PoE, SFP uplinks, and management features like VLAN and QoS.
- The Dell 2350dn laser printer is a mono laser printer that prints up to 40 pages per minute with networking and scanning capabilities.
- The Cisco Aironet 1250 series access points support 802.11a/g/n and include features like 2x3 MIMO, 40MHz channels, and data rates up
The document discusses the DPDK Packet Framework and the ip_pipeline application generator. It describes how the framework uses ports, tables, and actions to quickly develop packet processing pipelines. It also explains how ip_pipeline allows defining packet processing applications by connecting different reusable pipeline types and mapping them across CPU cores. The framework provides a way to build high performance packet processing applications from configurable processing blocks.
DPDK Summit - 08 Sept 2014 - 6WIND - High Perf Networking Leveraging the DPDK...Jim St. Leger
Thomas Monjalon, 6WIND, presents on where/how to use DPDK, the DPDK ecosystem, and the DPDK.org community.
Thomas is the community maintainer of DPDK.org.
Shak larry-jeder-perf-and-tuning-summit14-part1-finalTommy Lee
This document provides an overview and agenda for a performance analysis and tuning presentation focusing on Red Hat Enterprise Linux evolution, NUMA scheduling improvements, and use of cgroups/containers for resource management. Key points include how RHEL has incorporated features like tuned profiles, transparent hugepages, automatic NUMA balancing, and how cgroups can guarantee quality of service and enable dynamic resource allocation for multi-application environments. Performance results are shown for databases and SPEC benchmarks utilizing these features.
Virtual SAN is VMware's hyper-converged infrastructure storage solution that is integrated with vSphere. It provides a software-defined, distributed storage platform that offers policy-based placement and management of virtual machine storage. Version 6.1 introduced new features like stretched clusters for disaster recovery between sites, support for high-density flash devices, and health monitoring and troubleshooting tools through integration with vRealize Operations. Future enhancements may include RAID 5 and 6 functionality over the network to improve storage efficiency as well as data deduplication and compression.
Open-E DSS V7 Synchronous Volume Replication over a LANopen-e
The document provides step-by-step instructions for setting up synchronous volume replication between two Open-E DSS servers over a local area network. It involves configuring hardware, networking, creating logical volumes on the source and destination nodes, setting up replication between the volumes, and creating a replication task to synchronize data from the source to destination volume. The status of replication can be monitored by checking the replication tasks in the DSS management interface.
This document proposes a method for link virtualization on the Xen virtualization platform using Single Root I/O Virtualization (SR-IOV). It discusses using SR-IOV to minimize overhead by performing encapsulation/decapsulation and packet filtering in hardware. It also describes using MAC-in-UDP tunneling with a virtual network ID to isolate networks and a vARP protocol to map between virtual and physical MAC addresses. The document evaluates the proposed method's ability to guarantee bandwidth isolation and provides performance results for both weight-based and bandwidth-based bandwidth control approaches.
XenServer uses a control domain/Dom0 to manage virtual machines running on DomUs. It utilizes a Linux kernel with Intel-VT or AMD-V virtualization extensions. The hypervisor allows virtual machines to access physical resources like CPU, memory, network and storage. Networking and storage are virtualized using technologies like bonding, LVM, NFS and iSCSI. Performance analysis tools like iperf and hdparm can help optimize network and storage I/O.
The document discusses the evolution of XenServer architecture to address scalability limitations. The current architecture works well now but will hit bottlenecks on larger servers. The new "Windsor" architecture uses domain 0 disaggregation to move virtualization functions out of domain 0 and into separate domains for improved performance, scalability, and isolation. Key benefits include better VM density, use of hardware resources, stability, availability, and extensibility. It provides a flexible platform that can scale-out across servers.
Layer 2 protocols like CDP, VTP, DTP, and HSRP are vulnerable to attacks if not properly secured. An attacker can use tools like Yersinia to perform reconnaissance on layer 2 protocols to gain information about devices, protocols, and network topology. Common attacks include denial of service attacks, traffic hijacking, and bypassing network restrictions. To prevent attacks, companies should secure switches, use secure trunking configurations, disable unused ports and protocols, and deploy security features like DHCP snooping.
This document discusses Docker networking and provides an overview of its control plane and data plane components. The control plane uses a gossip-based protocol for decentralized event dissemination and failure detection across nodes. The data plane uses overlay networking with Linux bridges and VXLAN interfaces to provide network connectivity between containers on different Docker hosts. Load balancing for internal and external traffic is implemented using IPVS for virtual IP addresses associated with Docker services.
Docker Networking: Control plane and Data planeDocker, Inc.
The document discusses Docker networking and provides an overview of its control plane and data plane components. The control plane uses a gossip-based protocol for decentralized event dissemination and failure detection across nodes. The data plane uses overlay networking with Linux bridges and VXLAN interfaces to provide network connectivity between containers on different Docker hosts. Load balancing for internal and external traffic is implemented using IPVS for virtual IP addresses associated with Docker services.
The virtual router will be deployed once for a shared network to provide DHCP and DNS services, or per account and isolated guest network when advanced networking is used. It has three network interface cards - one connected to the isolated guest network to serve as the gateway, DHCP, and DNS server for VMs on that network, one on the management network, and one on the public network with a public IP address. The virtual router isolates VMs and performs source NAT for outbound traffic by default. It uses a secure Debian OS configuration with essential packages only and non-standard services ports.
The VOCAL system can be run on a 700MHz Pentium III PC with 512MB RAM and 1GB disk space. It requires Linux, Apache, JDK, and browsers. It supports redundancy with multiple redirect, marshal, and feature servers and a maximum of two each of CDR and provisioning servers. The number of servers scales up based on system capacity and call volume.
Vmug v sphere storage appliance (vsa) overviewsubtitle
The document discusses the vSphere Storage Appliance (VSA) which provides shared storage for small to medium businesses without requiring a separate SAN or NAS device. The VSA deploys virtual appliances on each ESXi host that replicate and aggregate local storage into a shared NFS datastore. This allows features like vMotion and HA to be enabled. The VSA provides resilience against failures through data mirroring across nodes and seamless failover of the NFS datastores.
Applications of Virtual Machine Monitors for Scalable, Reliable, and Interact...Amr Awadallah
My PhD oral defense.
An overlay network of VMMs (the vMatrix) which enables backward-compatible improvement of the scalability, reliability, and interactivity of Internet services.
Three applications demonstrated:
1. Dynamic Content Distribution
2. Server Switching
3. Fair placement of Game Servers
Hungary Usergroup - Midonet overlay programmingMarton Kiss
The document discusses distributed programming for overlay networks. It describes scaling to support massive numbers of virtual ports, servers, virtual machines, and network connections. Key aspects summarized are:
1. The system uses Scala, Akka, Zookeeper for distributed state management and achieves massive scaling of layer 2, 3, and 4 network functions as well as distributed service chaining and flow tracing.
2. The logical code design includes a state cluster storing the virtual topology, MidoNet agents caching data and interfacing with controllers, and clients interfacing through APIs.
3. The distributed flow state design forwards flow state to possible interested hosts for high performance without simulating packet ingress at other hosts, with state backed
This document provides an overview and summary of key concepts around virtualization that will be covered in more depth at a technical deep dive session, including:
- Virtualization capabilities for desktops/laptops and servers including workstation virtualization and server consolidation.
- How virtual machines work and the overhead associated with virtualization.
- Properties of virtualization like partitioning, isolation, and encapsulation.
- Benefits of server virtualization like consolidation, simpler management, and automated resource pooling.
- Comparison of "hosted" and vSphere virtualization architectures.
- Technologies used in virtualization like binary translation, hardware assistance from Intel VT/AMD-V.
- Ability to virtualize CPU intensive applications with
This document contains configuration maximums for virtual machines, storage, compute resources, memory, networking, and Virtual Center components in a VMware Infrastructure environment. It lists maximums such as 4 SCSI controllers and 60 devices per virtual machine, 2TB volume sizes, 128 virtual CPUs per server, 64GB RAM per server, 512 port groups, and 1500 virtual machines that can be managed by a single Virtual Center server. It also provides a high-level overview of the key components of VMware Infrastructure, including ESX Server, Virtual Center, and features such as VMotion, HA, and DRS.
This document discusses virtualization technologies including server virtualization using Hyper-V, desktop virtualization, application virtualization, and presentation virtualization. It covers key features of Hyper-V like live migration, failover clustering, thin provisioning, and improvements in Windows Server 2008 R2. Management techniques for virtualized environments are also addressed.
Real Application Cluster (RAC) allows multiple computers to simultaneously run Oracle RDBMS while accessing a single database, providing clustering. RAC provides high availability, scalability, and ease of administration by making multiple instances transparent to users. Nodes must have identical environments. Oracle Clusterware manages node additions and removals. Instances from different nodes write to the same physical database. The presentation covers RAC architecture, components, startup sequence, single instance configuration, node eviction, and tips for monitoring and improving the RAC environment.
Similar to Open-E DSS Synchronous Volume Replication over a WAN (20)
This document provides a step-by-step guide for setting up active-passive iSCSI failover between two Open-E DSS V7 nodes (node-a and node-b). The steps include: 1) configuring the hardware and network settings for each node; 2) creating volume groups and iSCSI volumes for data replication on each node; 3) configuring volume replication between the nodes; 4) creating iSCSI targets on each node; 5) configuring failover settings; and 6) testing the failover functionality. Key aspects involve replicating iSCSI volumes from the active node-a to the passive node-b, and configuring virtual IP addresses and targets on each node for seamless failover
The document provides step-by-step instructions for setting up an active-active load balanced iSCSI high availability cluster without bonding between two Open-E DSS V7 nodes (node-a and node-b). The key steps include:
1. Configuring the hardware for each node including network interfaces and IP addresses.
2. Configuring volumes, volume replication between each node's volumes to enable data synchronization, and starting the replication tasks.
3. Creating iSCSI targets on each node to expose the replicated volumes and enable failover.
This document provides steps to configure multipath I/O (MPIO) on an Open-E DSS V6 system with VMware ESXi 4.x and a Windows 2008 virtual machine. It requires two network cards in both systems connected to a switch. The steps include configuring the DSS V6 as an iSCSI target with two IP addresses, creating two vmkernel ports on the ESXi host connected to different network cards, adding the DSS as two iSCSI targets, enabling round robin path selection, and installing the Windows VM to test I/O performance using Iometer.
The document provides information on how snapshots work in Open-E software. Snapshots allow creating an exact copy of a logical volume at a point in time, while the original data continues to be available. The snapshot is implemented using copy-on-write, where changed blocks are copied to reserved space before being overwritten. This allows mounting snapshots read-only to access past versions of data. The document discusses snapshot configuration, advantages like non-disruptive backups, and disadvantages like decreased write speeds with many active snapshots.
Open-E DSS V6 How to Setup iSCSI Failover with XenServeropen-e
The document provides instructions for setting up DSS V6 iSCSI failover with XenServer using multipath, which includes configuring hardware settings and IP addresses on both nodes, creating volumes and targets on the primary and secondary nodes, setting up volume replication between the nodes, and configuring multipath on the XenServer storage client. Key steps are configuring the secondary node as the replication destination, then the primary node as the replication source, and setting up iSCSI failover and a virtual IP for the replicated volume.
The document provides instructions for backing up data from a DSS V6 server to an attached tape library. The 4-step process includes: 1) configuring hardware and logical volumes, 2) creating NAS shares and snapshots, 3) configuring backup tasks and schedules to alternate between tape pools on odd and even weeks, and 4) setting up a restore task to recover data from backup tapes. When completed, the backup and restore processes are automated to run on a weekly schedule and maintain multiple versions of backed up data on tapes.
The document provides instructions for setting up a backup from a DSS V6 data server to an attached tape drive. The key steps include: 1) Configuring hardware and volume groups, 2) Creating NAS volumes and snapshots, 3) Configuring the backup to use the tape drive by defining pools, tasks, and schedules, and 4) Performing backups that store data from network shares on labeled tapes according to the defined configuration.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
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Open-E DSS Synchronous Volume Replication over a WAN
1. A Step-by-Step Guide to
Synchronous Volume Replication
(Block Based) over a WAN
with Open-E ® DSS™
DSS ver. 5.00 up60 February 12, 2009 April 2009
2. Synchronous Volume Replication over a WAN
Synchronous Volume Replication over WAN is block based and supports iSCSI, FC and NAS
logical volumes. It provides data availability in case of source system disaster.
2
3. Synchronous Volume Replication over a WAN
REPLICATION BETWEEN TWO SYSTEMS OVER A WAN
Recommended Resources
• Key Hardware (two systems)
x86 compatible,
RAID Controller,
HDD‘s,
Network Interface Cards.
• Software
Open-E DSS, 2 units.
Benefits
• Data redundancy
• Maximum data safety
Disadvantages
• High cost of WAN solution
3
4. Synchronous Volume Replication over a WAN
• Data is written and read to System 1
• Data is continually replicated to System 2 via Internet
connection
Volume
Replication
RAID System 1
Primary RAID System 2
Secondary
Write Data
Read Data
4
5. Synchronous Volume Replication over a WAN
• In case of raid array error or disk drive error in the System 1, the server
will send an e-mail notification to the administrator,
• In the case of a failure of system 1, users will be notified,
• Administrator then switches users to the System 2 over the WAN.
X
RAID System 1
Primary RAID System 2
Secondary
5
6. Synchronous Volume Replication over a WAN
• After switching, replicated volume will be available on System 2
X
RAID System 1
Primary RAID System 2
Secondary
Write Data
Read Data
6
7. Setting up Synchronous Volume Replication over a WAN
TO SET UP VOLUME REPLICATION, PERFORM THE
FOLLOWING STEPS:
1.Hardware configuration
2.Configure DSS1 and DSS2 on the WAN
3.Configure the destination node
4.Configure the source node
5.Create the replication task
6.Check status of volume replication
7
8. Setting up Synchronous Volume Replication over a WAN
Hardware Requirements
To run the Volume replication of Open-E DSS, a minimum 1. Hardware Configuration
of two systems are required. Both servers are working in the
Wide Area Network. An example configuration is shown
below:
Data Server (DSS1) Data Server (DSS2)
Source node Destination node
Address IP:77.20.155.182 Address IP:213.17.139.234
RAID System 1 RAID System 2
Primary Secondary
Volume Groups (vg00)
NAT/Router/Internet Volume Groups (vg00)
Volume Replication
iSCSI volume (lv0000)
iSCSI volume (lv0000)
iSCSI targets
iSCSI targets
See next slide
8
9. Setting up Synchronous Volume Replication over a WAN
2. Configure DSS1 and DSS2 on the WAN
BELOW YOU CAN FIND OF SETTING THE DSS1 AND DSS2 ON
DSS 1 - WAN: behind the NAT with local IP address,
THE machine
DSS 2 – Data Storage System with external internet IP address router/firewall
Please perform the following steps to set up of Synchronous Volume Replication on routers:
• on Router 1 redirect ports 12000-13999 and 40000 to Server 1,
• on Router 2 redirect ports 12000-13999 and 40000 to Server 2.
IP:192.168.0.220 IP:192.168.0.220
IP:77.20.155.182 IP:213.17.139.234
Server 1 Router 1 Router 2 Server 2
Ports 12000-13999, 40000 Internet Ports 12000-13999, 40000
redirected to Server 1 redirected to Server 2
9
10. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS2)
Destination node 3. Configure the Destination Node
Address IP:213.17.139.234
Under the „CONFIGURATION”
tab, select „volume manager”.
Volume Groups (vg00)
Add the selected physical units
(Unit S000) to create a new
volume group (in this case,
vg00) and click apply button.
10
11. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS2)
Destination node
Address IP:213.17.139.234
3. Configure the Destination Node
Select the appropriate volume
group (vg00) from the list on the
left and create a new iSCSI
volume of the required size.
This logical volume will be the
destination of the replication
process.
iSCSI volume (lv0000)
Next check box with Use
volume replication
After assigning an appropriate
amount of space for the iSCSI
volume, click the apply button
11
12. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS2)
Destination node 3. Configure the Destination Node
Address IP:213.17.139.234
iSCSI volume (lv0000)
The destination iSCSI Volume
Block I/O is now configured.
12
13. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS2)
Destination node 3. Configure the Destination Node
Address IP:213.17.139.234
Under the „CONFIGURATION”
tab, select „iSCSI target
manager”.
iSCSI targets
In the Create new target
function enter a name for the
new target (as desired) in the
Name field and click apply to
confirm.
13
14. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS2) 3. Configure the Destination Node
Destination node
Address IP:213.17.139.234
Select target0 within the
Targets field.
iSCSI targets
To assign a volume to the
target, click the button
located under Action
14
15. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS2)
Destination node 3. Configure the Destination Node
Address IP:213.17.139.234
Under the „CONFIGURATION”
tab, select „volume manager”.
Select the Vol. Replication.
Check box under Destination
and click the apply button.
Volume Replication
Next, under Mirror Server IP
function, enter the IP address of
the source node. In our
example, this would be
77.20.155.182. Next check the
WAN box and enter a unique
combination of 6 to 12
characters in the ReplicationID
field and click the apply button.
The configuration of the Destination Node (storage server) is now complete.
15
16. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 4. Configure the Source Node
Address IP:77.20.155.182
Under the CONFIGURATION
tab, select volume manager..
Volume Groups (vg00)
Add the selected physical units
(Unit S000) to create a new
volume group (in this case,
vg00) and click apply button.
16
17. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node
Address IP:77.20.155.182 4. Configure the Source Node
Select the appropriate volume
group (vg00) from the list on the
left and create a new iSCSI
volume of the required size.
This logical volume will be the
destination of the replication
process.
iSCSI volume (lv0000)
Next check box with Use
volume replication
After assigning an appropriate
amount of space for the iSCSI
volume, click the apply button.
NOTE:
The source and destination volumes must be exact
same size. Remember to enable Volume
Replication
17
18. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 4. Configure the Source Node
Address IP:77.20.155.182
iSCSI volume (lv0000)
The destination iSCSI Volume
Block I/O is now configured.
18
19. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 4. Configure the Source Node
Address IP:77.20.155.182
Under the „CONFIGURATION”
tab, select „iSCSI target
manager”.
iSCSI targets
In the Create new target
function enter a name for the
new target (as desired) in the
Name field and click apply to
confirm.
19
20. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 4. Configure the Source Node
Address IP:77.20.155.182
Select target0 within the
Targets field.
iSCSI targets
To assign a volume to the
target, click the button
located under Action
20
21. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 4. Configure the Source Node
Address IP:77.20.155.182
iSCSI targets
The source iSCSI target is now
configured.
21
22. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 4. Configure the Source Node
Address IP:77.20.155.182
Now, select the Vol.
replication and check the box
under Source and click the
apply button.
Volume Replication
Next, under Mirror Server IP
function, enter the IP address of
the destination node. In our
example, this would be
213.17.139.234. Next check the
WAN box and enter the unique
combination ID you entered in
the destination node. Then,
NOTE:
click the apply button. The source and destination volumes must be of identical ReplicationID number.
22
23. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 5. Creating replication task
Address IP:77.20.155.182
Enter the task name in field
Task name next,
click on the button.
Volume Replication
In the Destination volume field
select the appropriate volume
(in this example, lv0000), and
click create to confirm.
The configuration of the Source Node (storage server) is now complete.
23
24. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 5. Creating replication task
Address IP:77.20.155.182
After the DSS console has
reloaded, you can start, stop or
delete the task within the
Replication task manager
function.
24
25. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 5. Creating replication task
Address IP:77.20.155.182
Also, you can start, stop or
delete the task within the
Replication Task Manager
function by clickling on the
name replication (in this case,
Replication_WAN).
NOTE:
Once the replication process has started, the replication direction cannot be changed.
25
26. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 5. Creating replication task
Address IP:77.20.155.182
In the “Create schedule for
volume replication task”
function, enter a comment for
the new schedule and select for
all days of the week. In this
example choose Every week
and select time for the start task
(8 pm) and stop (7 am). Next,
click the apply button.
NOTE:
In case of bandwidth limitation you can start the Volume Replication over the WAN in scheduled function at night in order not to load the connection which
can be used by other applications.
26
27. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 6. Check status of volume replication
Address IP:77.20.155.182
Under the „STATUS” tab,
select „tasks” and select
Volume Replication to display
information on existing volume
replication tasks
27
28. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 6. Check status of volume replication
Address IP:77.20.155.182
Click on button with task
name (in this case
Replication_WAN) to display
detailed information on the
current replication task.
All possible connection types
(from Connection field) are
described in table:
On the 30th slide.
28
29. Setting up Synchronous Volume Replication over a WAN
Data Server (DSS1)
Source node 6. Check status of volume replication
Address IP:77.20.155.182
The replication tasks shows
consistency status of the
destination volume. This will state
Inconsistent immediately upon
starting a new replication.
This will switch to Consistent
once reaching the state that both
volumes are in sync. Destination
volume has useful data only when
replication task reaches
Consistent state.
Synchronous replication does not
guarantee exact mirror of the data
especially with slow uplink, but data
remains consistent.
It could be that some of the most
recent files are missing on
destination volume. The amount of
the not replicated data depends on
the uplink speed and the amount of
the new data on the source
volume.
Volume Replication, between source and destination nodes, is now complete.
29
30. Setting up Synchronous Volume Replication over a WAN
CONNECTION STATES:
State Description
StandAlone Indicates that volume replication has been disabled.
Unconnected Mirror server is not connected.
WFConnection Mirror server waits for a connection.
WFReportParams Displayed when connection to the mirror server is in progress.
Connected Source and destination servers have been connected successfully.
ServerForDLess Error on the mirror server side.
Timeout, BrokenPipe, NetworkFailure Displayed when servers cannot communicate successfully while connected
WFBitMap{S,T} Displayed when the volume replication starts.
SyncSource Replication is in progress, the data is consistent.
SyncTarget Replication in progress, the data is inconsistent.
30