Hosting Virtualization High Availability Geographical load-balancing Computing in the Cloud Myroslav Opyr, CTO © Quintagroup, 2008

Virtualization

High Availability

Geographical load-balancing

Computing in the Cloud

Myroslav Opyr, CTO

© Quintagroup, 2008

Quintagroup Hosting Types: Shared Zope Instances Standalone Zope Instances Dedicated Servers and their clusters Virtual servers VM Clusters Highly Available VM Clusters Scalable HA VM Clusters

Types:

Shared Zope Instances

Standalone Zope Instances

Dedicated Servers and their clusters

Virtual servers

VM Clusters

Highly Available VM Clusters

Scalable HA VM Clusters

Virtual Servers XEN paravirtualization (usually Linux on Linux) virtualization-aware kernel on VM that communicates all hardware-related issues with hypervisor XEN full virtualization (Windows on Linux) hardware is emulated, native kernel is running on Ring1 thanks to VM extesnsions of CPU

Virtual Servers

XEN paravirtualization (usually Linux on Linux)

virtualization-aware kernel on VM that communicates all hardware-related issues with hypervisor

XEN full virtualization (Windows on Linux)

hardware is emulated, native kernel is running on Ring1 thanks to VM extesnsions of CPU

Typical Virtual Environment (VE) Plenty of RAM 256Mb Virtual machines Tiny Dom0 (64Mb) XM IPtables Tinc VPN Munin

Plenty of RAM

256Mb Virtual machines

Tiny Dom0 (64Mb)

XM

IPtables

Tinc VPN

Munin

Resource management In the case we are running out of resources in VE, VM is migrated to new one that satisfies requirements (has enough RAM, HDD, CPU). Migration is either off-line or live.

Resource management

In the case we are running out of resources in VE, VM is migrated to new one that satisfies requirements (has enough RAM, HDD, CPU). Migration is either off-line or live.

Typical VM cluster frontend (Apache, Squid, AWstats) backend (pound, ZEO clients) manage (ZEO client) storage (ZEO server)

Typical VM cluster

frontend (Apache, Squid, AWstats)

backend (pound, ZEO clients)

manage (ZEO client)

storage (ZEO server)

Highly Available VM cluster Two almost identical VM Clusters Single storage VM RAID1, mirror over Network (drbd) disk of storage VM High Availability software (heartbeat)

Two almost identical VM Clusters

Single storage VM

RAID1, mirror over Network (drbd) disk of storage VM

High Availability software (heartbeat)

Visibility of HA VM Cluster Hardware Load Balancer (NetScaler, etc.) Caching CDN (RapidEdge, Peer1 – Squid Cache servers) Geographically and availability aware DNS (GLOBAL, Peer1) Round Robin DNS (and manual/automatic zone edits)

Visibility of HA VM Cluster

Hardware Load Balancer (NetScaler, etc.)

Caching CDN (RapidEdge, Peer1 – Squid Cache servers)

Geographically and availability aware DNS (GLOBAL, Peer1)

Round Robin DNS (and manual/automatic zone edits)

Geographical Load-Balancing True GeoLB via Multi-homing IP Dedicated AS with Multi-homing IP Carefully crafted BGP with limited propagation GeoLB on DNS level (DNS via true GeoLB) application requesting www.example.com reaches closest DNS server DNS server offer closest live example.com server IP

True GeoLB via Multi-homing IP

Dedicated AS with Multi-homing IP

Carefully crafted BGP with limited propagation

GeoLB on DNS level (DNS via true GeoLB)

application requesting www.example.com reaches closest DNS server

DNS server offer closest live example.com server IP

Cloud Computing We are doing computing on-demand, when there is need (load average on servers is more then servers can handle and site responsiveness is below preconfigured value). Amazon EC2 (Elastic Cloud Computing) platform, XEN VE Pound Tinc Heartbeat OpenACS

Cloud Computing

We are doing computing on-demand, when there is need (load average on servers is more then servers can handle and site responsiveness is below preconfigured value).

Amazon EC2 (Elastic Cloud Computing) platform, XEN VE

Pound

Tinc

Heartbeat OpenACS

Computing in the Cloud (illustration)

Questions?

Questions?

About Quintagroup 7 Morozna str. 79066, Lviv Ukraine Email: info@quintagroup.com Phone: +380.32.245-7622 Myroslav Opyr Chief Technological Officer Email: myroslav@quintagroup.com Skype: myroslav_opyr Mobile: +380.50.317-4578

About

Quintagroup 7 Morozna str. 79066, Lviv Ukraine Email: info@quintagroup.com Phone: +380.32.245-7622

Myroslav Opyr Chief Technological Officer Email: myroslav@quintagroup.com Skype: myroslav_opyr Mobile: +380.50.317-4578