Using ZFS with Veritas Cluster Server


 
Thread Tools Search this Thread
Operating Systems Solaris Using ZFS with Veritas Cluster Server
# 1  
Old 02-10-2013
Wrench Using ZFS with Veritas Cluster Server

Until I really began to explore the practical implications of using ZFS with VCS, I would not have necessarily realised the obstacles that would be put in my path. Data integrity is a must-have for storage in a shared host environment, so it surprised me to learn as I opened this particular Pandora's box that VCS provides no solution at all for ensuring data integrity on any of the ZFS pools that are a part of your cluster. The 'Zpool' agent is dumb. It imports the pool. It exports the pool. "What about SCSI-3 persistent reservations?", I hear you ask. What about them, indeed. ZFS is a competing product, I won't expect an answer to that problem coming from the Symantec camp. So I took up the gauntlet on a mission to add SCSI-3 PR support to the Zpool agent for my client. I succeeded. So I have written up some notes that might help direct others should they stumble across the same obstacles, and along the way I've discovered the benefits that Solaris MPxIO has to offer that are superior to VxDMP.

Technical Prose: SCSI-3 PR with ZFS on Veritas Cluster Server
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to extend a disk in veritas volume manager in veritas cluster?

Hi Experts, I wanted to extend a veritas file system which is running on veritas cluster and mounted on node2 system. #hastatus -sum -- System State Frozen A node1 running 0 A node2 running 0 -- Group State -- Group System Probed ... (1 Reply)
Discussion started by: Skmanojkum
1 Replies

2. UNIX for Advanced & Expert Users

How to grow vxfs directory but the server is in Veritas Cluster environment?

Hello, Usually I use "vxresize" to grow vxfs directory in a stand-alone server without any problems, but I am just told to grow vxfs directorys in Veritas Cluster nodes. Since I never done it before, would like to ask all the experts here to make sure the concept and steps will be fine... (1 Reply)
Discussion started by: sunnychen98
1 Replies

3. Solaris

Sun cluster and Veritas cluster question.

Yesterday my customer told me to expect a vcs upgrade to happen in the future. He also plans to stop using HDS and move to EMC. Am thinking how to migrate to sun cluster setup instead. My plan as follows leave the existing vcs intact as a fallback plan. Then install and build suncluster on... (5 Replies)
Discussion started by: sparcguy
5 Replies

4. Solaris

Veritas Cluster Server Question

Is it possible to configure veritas cluster server using 2 Ldoms on same host? I just want to test and learn VCS. We can do a cluster (sun cluster3.2 ) in a box using 2 Ldoms but i 'm not sure if thats possible with veritas cluster or not ? (1 Reply)
Discussion started by: fugitive
1 Replies

5. Solaris

Veritas Cluster

Can I make a veritas cluster on Sun vertual box or Vmwere. Please help me. (4 Replies)
Discussion started by: saga499
4 Replies

6. High Performance Computing

Veritas Cluster Server Management Console IP Failover

I have just completed a first RTFM of "Veritas Cluster Server Management Console Implementation Guide" 5.1, with a view to assessing it to possibly make our working lives easier. Unfortunately, at my organisation, getting a test installation would be worse than pulling teeth, so I can't just go... (2 Replies)
Discussion started by: Beast Of Bodmin
2 Replies

7. High Performance Computing

SUN Cluster Vs Veritas Cluster

Dear All, Can anyone explain about Pros and Cons of SUN and Veritas Cluster ? Any comparison chart is highly appreciated. Regards, RAA (4 Replies)
Discussion started by: RAA
4 Replies

8. Solaris

veritas cluster

Hi I want to install VCS 5 on solaris 10 the product states it needs 3 nic cards. how to install it if I have 2 cards only (this is just for demo)? thank you for your help. (3 Replies)
Discussion started by: melanie_pfefer
3 Replies

9. High Performance Computing

newbie in veritas cluster server

Hello, This might not be the right place to post my questions. - I installed VCS 5.0 on the 2 nodes. What's next? I want to test the HA of NFS: i.e. the shared disk always accessible if one node goes down. How to do that? - The management console was not installed. This is the GUI to manage... (2 Replies)
Discussion started by: melanie_pfefer
2 Replies
Login or Register to Ask a Question
AMZFS-SNAPSHOT(8)					  System Administration Commands					 AMZFS-SNAPSHOT(8)

NAME
amzfs-snapshot - Amanda script to create zfs snapshot DESCRIPTION
amzfs-snapshot is an Amanda script implementing the Script API. It should not be run by users directly. It create a zfs snapshot of the filesystem where the path specified is mounted. PRE-DLE-* create a snapshot and the POST-DLE-* destroy the snapshot, *-DLE-AMCHECK, *-DLE-ESTIMATE and *-DLE-BACKUP must be set to be executed on the client: execute-on pre-dle-amcheck, post-dle-amcheck, pre-dle-estimate, post-dle-estimate, pre-dle-backup, post-dle-backup execute-where client The PRE_DLE_* script output a DIRECTORY property telling where the directory is located in the snapshot. The application must be able to use the DIRECTORY property, amgtar can do it. The script is run as the amanda user, it must have the priviledge to create and destroy snapshot: zfs allow -ldu AMANDA_USER mount,snapshot,destroy FILESYSTEM Some system doesn't have "zfs allow", but you can give the Amanda backup user the rights to manipulate ZFS filesystems by using the following command: usermod -P "ZFS File System Management,ZFS Storage Management" AMANDA_USER This will require that your run zfs under pfexec, set the PFEXEC property to YES. The format of the DLE must be one of: Desciption Example ---------- ------- Mountpoint /data Arbitrary mounted dir /data/interesting_dir ZFS pool name datapool ZFS filesystem datapool/database ZFS logical volume datapool/dbvol The filesystem must be mounted. PROPERTIES
This section lists the properties that control amzfs-snapshot's functionality. See amanda-scripts(7) for information on the Script API, script configuration. DF-PATH Path to the 'df' binary, search in $PATH by default. ZFS-PATH Path to the 'zfs' binary, search in $PATH by default. PFEXEC-PATH Path to the 'pfexec' binary, search in $PATH by default. PFEXEC If "NO" (the default), pfexec is not used, if set to "YES" then pfexec is used. EXAMPLE
In this example, a dumptype is defined to use amzfs-snapshot script to create a snapshot and use amgtar to backup the snapshot. define script-tool amzfs_snapshot { comment "backup of zfs snapshot" plugin "amzfs-snapshot" execute-on pre-dle-amcheck, post-dle-amcheck, pre-dle-estimate, post-dle-estimate, pre-dle-backup, post-dle-backup execute-where client #property "DF-PATH" "/usr/sbin/df" #property "ZFS-PATH" "/usr/sbin/zfs" #property "PFEXEC-PATH" "/usr/sbin/pfexec" #property "PFEXEC" "NO" } define dumptype user-zfs-amgtar { dt_amgtar script "amzfs_snapshot" } SEE ALSO
amanda(8), amanda.conf(5), amanda-client.conf(5), amanda-scripts(7) The Amanda Wiki: : http://wiki.zmanda.com/ AUTHORS
Jean-Louis Martineau <martineau@zmanda.com> Zmanda, Inc. (http://www.zmanda.com) Dustin J. Mitchell <dustin@zmanda.com> Zmanda, Inc. (http://www.zmanda.com) Amanda 3.3.3 01/10/2013 AMZFS-SNAPSHOT(8)