ZFS is an advanced file system and volume manager that provides data integrity, reliability, and scalability. It combines data storage, management, snapshots, deduplication, and other features. ZFS can be run on Linux via ports or dedicated distributions and offers benefits for storage services and disaster recovery.
Introduction to Btrfs - FLOSS UK Spring Conference York 2015Richard Melville
With the availability of relatively cheap, large capacity hard disks, the likelihood of running out of disk space is relatively low. However, we may be in the process of re-organising our data storage by increasing the number, or capacity, of our disk array. Or, we may wish to substitute SSDs for our conventional HDDs.
Anybody who has run out of disk capacity will know just how frustrating it is. Equally, the re-organisation of our data is also time consuming and can be fraught with difficulty. If we have a RAID we can, of course, remove and replace drives on the fly as they become full, or even fail. With LVM we can extend, or shrink, file systems on the fly by changing the capacity of the data pool.
Wouldn't it be great, though, if we could combine all these functions, and more besides, into one set of tools? Furthermore, what if we could have these tools working at the file system level, rather than on a virtual layer above the file system?
Well, Sun Microsystems thought so too and developed the ZFS file system for use in its Solaris OS. Sun is now owned by Oracle but ZFS is still very much alive. Unfortunately, for GNU/Linux users, the CDDL licence that came with ZFS was not compatible with the GPL, so inclusion in the Linux kernel was just not possible. ZFS can be built as a module, but this is not very convenient for a file system, hence, the birth of Btrfs.
Btrfs could be seen as a ZFS for GNU/Linux. It is younger, and therefore not as complete as ZFS, but it is getting there. Linus Torvalds claims that it will be the default GNU/Linux file system when it is ready for production use, so it is worth becoming familiar with it now. The Btrfs file system is built into recent kernels, and additional userland tools, btrfs-progs, are provided for manipulating the file system.
This talk will be a basic introduction for those not yet familiar with the Btrfs file system.
Case study of BtrFS: A fault tolerant File systemKumar Amit Mehta
A case study of Fault Tolerance features of BTRFS. These slides were prepared for the coursework for a Masters level program at Tallinn University of Technology, Estonia. A lot of materials in the slides are taken from the materials in the public domain. Many thanks to the people on BTRFS IRC Channel.
Cloudoc Fujitsu Desktop Server Appliance from NetID.
Basic Functions
- Document management & Document collaboration
- SW installation files management
- Community function
- Windows Explorer UI support
Mobile Support
- Provide iOS, Android, Smart phone UI
- Device registration, location tracking, remote deletion
- Viewing Personal / Department / Public Documents
- Internal connection via external Proxy server
Disk Lock
- Ransomware blocking function
- Prohibit local saving
- Application-specific management
- Export procedure
Disk Lock Plus
- Prohibit screen capture
- Prohibit print
- Prohibit print log info
- Prohibit Clipboard Copy
- Print watermark
Introduction to Btrfs - FLOSS UK Spring Conference York 2015Richard Melville
With the availability of relatively cheap, large capacity hard disks, the likelihood of running out of disk space is relatively low. However, we may be in the process of re-organising our data storage by increasing the number, or capacity, of our disk array. Or, we may wish to substitute SSDs for our conventional HDDs.
Anybody who has run out of disk capacity will know just how frustrating it is. Equally, the re-organisation of our data is also time consuming and can be fraught with difficulty. If we have a RAID we can, of course, remove and replace drives on the fly as they become full, or even fail. With LVM we can extend, or shrink, file systems on the fly by changing the capacity of the data pool.
Wouldn't it be great, though, if we could combine all these functions, and more besides, into one set of tools? Furthermore, what if we could have these tools working at the file system level, rather than on a virtual layer above the file system?
Well, Sun Microsystems thought so too and developed the ZFS file system for use in its Solaris OS. Sun is now owned by Oracle but ZFS is still very much alive. Unfortunately, for GNU/Linux users, the CDDL licence that came with ZFS was not compatible with the GPL, so inclusion in the Linux kernel was just not possible. ZFS can be built as a module, but this is not very convenient for a file system, hence, the birth of Btrfs.
Btrfs could be seen as a ZFS for GNU/Linux. It is younger, and therefore not as complete as ZFS, but it is getting there. Linus Torvalds claims that it will be the default GNU/Linux file system when it is ready for production use, so it is worth becoming familiar with it now. The Btrfs file system is built into recent kernels, and additional userland tools, btrfs-progs, are provided for manipulating the file system.
This talk will be a basic introduction for those not yet familiar with the Btrfs file system.
Case study of BtrFS: A fault tolerant File systemKumar Amit Mehta
A case study of Fault Tolerance features of BTRFS. These slides were prepared for the coursework for a Masters level program at Tallinn University of Technology, Estonia. A lot of materials in the slides are taken from the materials in the public domain. Many thanks to the people on BTRFS IRC Channel.
Cloudoc Fujitsu Desktop Server Appliance from NetID.
Basic Functions
- Document management & Document collaboration
- SW installation files management
- Community function
- Windows Explorer UI support
Mobile Support
- Provide iOS, Android, Smart phone UI
- Device registration, location tracking, remote deletion
- Viewing Personal / Department / Public Documents
- Internal connection via external Proxy server
Disk Lock
- Ransomware blocking function
- Prohibit local saving
- Application-specific management
- Export procedure
Disk Lock Plus
- Prohibit screen capture
- Prohibit print
- Prohibit print log info
- Prohibit Clipboard Copy
- Print watermark
Btrfs and Snapper - The Next Steps from Pure Filesystem Features to Integrati...Gábor Nyers
These are the slides of our SUSECon 2013 presentation with Arvin (the inventor of Snapper)
Btrfs as technology has been getting a lot of attention over the past few years. While interesting for its feature set alone, like checksums, copy on write, snapshots and built-in device management, without proper management tooling and integration with other parts of the operating system, it is difficult for the average user to use Btrfs to its full potential.
This session will help you understand the features of Btrfs and how Snapper can be used for snapshot management in SUSE Linux Enterprise. We also will provide use cases and an outlook for future functionality.
Describe the following information.
- Background (Why Fujitsu has contributed to Btrfs)
- Introduction to core features
- Development statistics
- Future prospects
This slide is almost the same as my presentation at LinuxCon Europe 2014. The difference is just minor fixes.
Olivier Cochard-Labbé, the original founder of FreeNAS, shares with us a presentation outlining the history and beginnings of what would become the world's most popular storage operating system.
http://www.ixsystems.com
http://www.freenas.org
The whole idea ov virtualization is to utilize resources as heaviliy as possible. oVirt, an open- source virtualization solution, comes with several techniques, that require every VM to actually fight for each byte it needs, thus keeping disk usage as small as possible. oVirt uses different types of thin provisioning, data compression and data deduplication, to improve disk space utilization.
Disaster Recovery Strategies Using oVirt's new Storage Connection Management ...Allon Mureinik
A short overview of oVirt 3.3's Storage Connection Management feature, and several examples how this feature can be used in Disaster Recovery strategies.
Oracle Exadata is a packaged solution offering from Oracle, configured with bundled hardware, storage and database, which is touted to be optimized for handling scalable data warehouse-type workloads in query and analysis.
Btrfs and Snapper - The Next Steps from Pure Filesystem Features to Integrati...Gábor Nyers
These are the slides of our SUSECon 2013 presentation with Arvin (the inventor of Snapper)
Btrfs as technology has been getting a lot of attention over the past few years. While interesting for its feature set alone, like checksums, copy on write, snapshots and built-in device management, without proper management tooling and integration with other parts of the operating system, it is difficult for the average user to use Btrfs to its full potential.
This session will help you understand the features of Btrfs and how Snapper can be used for snapshot management in SUSE Linux Enterprise. We also will provide use cases and an outlook for future functionality.
Describe the following information.
- Background (Why Fujitsu has contributed to Btrfs)
- Introduction to core features
- Development statistics
- Future prospects
This slide is almost the same as my presentation at LinuxCon Europe 2014. The difference is just minor fixes.
Olivier Cochard-Labbé, the original founder of FreeNAS, shares with us a presentation outlining the history and beginnings of what would become the world's most popular storage operating system.
http://www.ixsystems.com
http://www.freenas.org
The whole idea ov virtualization is to utilize resources as heaviliy as possible. oVirt, an open- source virtualization solution, comes with several techniques, that require every VM to actually fight for each byte it needs, thus keeping disk usage as small as possible. oVirt uses different types of thin provisioning, data compression and data deduplication, to improve disk space utilization.
Disaster Recovery Strategies Using oVirt's new Storage Connection Management ...Allon Mureinik
A short overview of oVirt 3.3's Storage Connection Management feature, and several examples how this feature can be used in Disaster Recovery strategies.
Oracle Exadata is a packaged solution offering from Oracle, configured with bundled hardware, storage and database, which is touted to be optimized for handling scalable data warehouse-type workloads in query and analysis.
The biggest headine at the 2009 Oracle OpenWorld was when Larry Ellison announced that Oracle was entering the hardware business with a pre-built database machine, engineered by Oracle. Since then businesses around the world have started to use these engineered systems. This beginner/intermediate-level session will take you through my first 100 days of starting to administer an Exadata machine and all the roadblocks and all the success I had along this new path.
The biggest headine at the 2009 Oracle OpenWorld was when Larry Ellison announced that Oracle was entering the hardware business with a pre-built database machine, engineered by Oracle. Since then businesses around the world have started to use these engineered systems. This beginner/intermediate-level session will take you through my first 100 days of starting to administer an Exadata machine and all the roadblocks and all the success I had along this new path.
This project work contains all the necessary information for class 12 accountancy project
This Project Contains three part. They are as follows.
1. Comprehensive Project
2. Specific - 01(Ratio Analysis)
3. Specific - 02(Cash Flow Statement)
OSDC 2016 - Interesting things you can do with ZFS by Allan Jude&Benedict Reu...NETWAYS
ZFS is the next generation filesystem originally developed at Sun Microsystems. Available under the CDDL, it uniquely combines volume manager and filesystem into a powerful storage management solution for Unix systems. Regardless of big or small storage requirements. ZFS offers features, for free, that are usually found only in costly enterprise storage solutions. This talk will introduce ZFS and give an overview of its features like snapshots and rollback, compression, deduplication as well as replication. We will demonstrate how these features can make a difference in the datacenter, giving administrators the power and flexibility to adapt to changing storage requirements.
Real world examples of ZFS being used in production for video streaming, virtualization, archival, and research are shown to illustrate the concepts. The talk is intended for people considering ZFS for their data storage needs and those who are interested in the features ZFS provides.
LAS16-400: Mini Conference 3 AOSP (Session 1)Linaro
LAS16-400: Mini Conference 3 AOSP (Session 1)
Speakers: Thomas Gall, Bernhard Rosenkränzer
Date: September 29, 2016
★ Session Description ★
The Android Open Source Project is one community which is strategic to Linaro and it’s members. The purpose of this mini conference is to gather fellow Android engineers together from the community, member companies, and Linaro to discuss engineering activities and improve collaboration across different groups.
Within this mini conference we encourage discussion and presentations to advance engineering topics, forge consensus and educate each other.
The tentative agenda for this mini conference includes :
- Quick introduction
- Filesystems - Between requirements for encryption and standing concerns about degrading performance as an Android file system age, let’s have some discussion involving current data, known issues and towards improvements in this area for Android.
- HAL consolidation - Review current status and discuss next steps to work on.
One build for many devices: device/build configuration. Next features and platforms to add. Gaps in HiKey support vs. AOSP build.
- Graphics - YUV support in mesa and hwc.
- WiFi and sensor HAL status and next steps
- New developments with AOSP + the Kernel - With regards to the Google Common Kernel tree and upstream Linux kernel activities related to Android, there are a few topics up for discussion:
- - Updates on HiKey in AOSP
- - EAS in common.git & integration with AOSP userspace
- - New Sync API in 4.6+ kernels, and how it will affects graphics drivers
- AOSP transition to clang - As everyone knows GCC in AOSP has been deprecated. Let’s cover current status, issues and next steps. Let’s also discuss the elephant in the room, building the kernel with clang.
- Out of tree AOSP User space Patches - This is a discussion with the goal of organized action to see forward progress on AOSP user space patches that aren’t in AOSP for whatever reason.
- Android is used in some environments where booting can be frequent and affect the product experience. Do you want to wait for a minute while your car boots? We’ll spend time brainstorming on improving Android boot time.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-400
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-400/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
JetStor NAS 724uxd 724uxd 10g - technical presentationGene Leyzarovich
The JetStor NAS 724UXD is a unified / hybrid NAS storage system that consolidates NAS and IP-based iSCSI SAN in one chassis. Featuring the newest Intel Haswell platform to lower power consumption and 7x 1Gb Ethernet host ports per controller, all encompassed in a small 4U enclosure. The JetStor NAS 724UXD offers SSD Caching to boost random I/O intensive application, Snapshot, Thin Provisioning, Online Capacity Expansion and Controller-based cable-less design for excellent manageability.
JetStor NAS 724UXD Dual Controller Active-Active ZFS BasedGene Leyzarovich
The JetStor NAS 724UXD is a unified / hybrid NAS storage system that consolidates NAS and IP-based iSCSI SAN in one chassis. Featuring the newest Intel Haswell platform to lower power consumption and 7x 1Gb Ethernet host ports per controller, all encompassed in a small 4U enclosure. The JetStor NAS 724UXD offers SSD Caching to boost random I/O intensive application, Snapshot, Thin Provisioning, Online Capacity Expansion and Controller-based cable-less design for excellent manageability.
zfsday talk (a video is on the last slide). The performance of the file system, or disks, is often the target of blame, especially in multi-tenant cloud environments. At Joyent we deploy a public cloud on ZFS-based systems, and frequently investigate performance with a wide variety of applications in growing environments. This talk is about ZFS performance observability, showing the tools and approaches we use to quickly show what ZFS is doing. This includes observing ZFS I/O throttling, an enhancement added to illumos-ZFS to isolate performance between neighbouring tenants, and the use of DTrace and heat maps to examine latency distributions and locate outliers.
Gentoo Linux, or Why in the World You Should Compile EverythingDonnie Berkholz
Gentoo Linux is a special flavor of Linux that can be automatically optimized and customized for just about any application or need. Extreme performance, configurability and a top-notch user and developer community are all hallmarks of the Gentoo experience.
As a leader of Gentoo, I will provide an overview of how it works from a developer's and a user's point of view, and why you should be running it especially if you're:
- In need of an awesome development environment;
- Interested in learning what's inside the black box of Linux;
- OCD about having a perfectly configured setup; or
- Building an embedded, minimal system or a high-performance cluster.
If there's interest, I can also talk about future developments on the horizon for Gentoo, package management in general, etc.
Prezentare sustinuta de Lidia Ene – Director Directia Monitorizare MCSI, in cadrul evenimentului "Proiectele europene si tehnologia informatiei – solutia cresterii economice pentru IMM-uri" organizat de IDG Romania
Solutii software pentru gestionarea eficienta a afacerilorIDG Romania
Prezentare sustinuta de Adrian Siclovan, Chief Project Officer si Diana Cristea, Sales & Marketing Manager, LLP Romania, in cadrul evenimentului "Proiectele europene si tehnologia informatiei – solutia cresterii economice pentru IMM-uri" organizat de IDG Romania.
Tehnologii si medii de comunicare acum disponibile microintreprinderilorIDG Romania
Prezentare sustinuta de Todi Pruteanu, Platform Strategy Manager, Microsoft Romania, in cadrul evenimentului "Proiectele europene si tehnologia informatiei – solutia cresterii economice pentru IMM-uri", organizat de IDG Romania
Tehnologii si medii de comunicare acum disponibile microintreprinderilor
IT Assist - ZFS on linux
1. ZFS on Linux
Mircea MITU – Co-Founder IT Assist / CTO
www.itassist.ro
www.itassist.ro
2. ZFS (quotes)
● “ZFS is the most advanced file system ever
invented” - zfs-fuse.net
● “ZFS is a new kind of file system that provides
simple administration, transactional semantics,
end-to-end data integrity, and immense
scalability” - opensolaris.org
● “ZFS is a combined file system and logical
volume manager designed by Sun
Microsystems. “ - wikipedia.org
www.itassist.ro
9. How to get ZFS running on Linux
● On your distro
● ZFS-FUSE.net
● Userland (FUSE) implementation
● Not very fast but stable & easy to run
● ZFSonLINUX.org: native, sources
● KQStor.com (native)
● bins for RHEL6/Fedora 14 & Ubuntu 10.04/10.10
www.itassist.ro
10. How to get ZFS running on Linux
● Dedicated distros
● Debian GNU/kFreeBSD
● Nexenta (Ubuntu + OpenSolaris kernel)
● OpenSolaris
www.itassist.ro
11. Benchmarks (Phoronix)
● Benchmarks Of The Official KQ ZFS Linux
Module: http://xurl.ro/1nq0 (Jan 2011)
● Debian GNU/kFreeBSD Benchmarks With Its
New Kernel: http://xurl.ro/75n0 (Oct 2010)
● Running The Native ZFS Linux Kernel Module,
Plus Benchmarks: http://xurl.ro/73020 (Nov 2010)
● Benchmarks Of ZFS-FUSE On Linux Against
EXT4, Btrfs: http://xurl.ro/67p0 (Aug 2010)
www.itassist.ro
12. ZFS @ IT Assist
● Used in a Disaster Recovery Service
● Offsite ZFS storage for hundreds of servers
● Major benefits:
● High density (due to Copy-on-Write)
● Reliable (fault tolerant, atomic write, checksums)
● Ability to instantly clone current/previous versions of
critical servers
www.itassist.ro
13. IT Assist - IT as a Service
● Complete IT Outsourcing
● Dedicated services (i.e. Disaster Recovery)
www.itassist.ro
14. Contact
Thank you for your attention
More information:
Mircea MITU <mircea.mitu@itassist.ro>
Co-Founder / Chief Technical Officer
IT Assist - Your IT Department
www.itassist.ro
twitter.com/mirceamitu
twitter.com/itassist
www.itassist.ro