Comments for Andy Burton

Comment on Citrix XenServer 5.5 Automated Live VM Backup to Windows CIFS Share by afries

afries — Tue, 17 Aug 2010 06:10:24 +0000

Had anyone the same problem with CIFS as I?
The Problem is, that if i write the snapshot to a cifs share
on an Windows 2003 Server i got corrupt files. Tested everything
but it seems to be definetly a problem of the CIFS implementation
in the XenServer. The files (sometimes) get random zero-bytes…
In the log there are the folowing messages:
Mar 26 09:31:51 xensnapshottestsrv kernel: CIFS VFS: Write2 ret -11, wrote 4096
Mar 26 09:31:52 xensnapshottestsrv kernel: CIFS VFS: No response to cmd 47 mid 1995
Mar 26 09:31:52 xensnapshottestsrv kernel: CIFS VFS: Write2 ret -11, wrote 0
Mar 26 09:31:52 xensnapshottestsrv kernel: CIFS VFS: Write2 ret -11, wrote 4096
Mar 26 09:32:22 xensnapshottestsrv kernel: CIFS VFS: server not responding
Mar 26 09:32:22 xensnapshottestsrv kernel: CIFS VFS: No response for cmd 117 mid 2036
…

Has any one an idea?

Best regards
afries

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by Tim

Tim — Thu, 12 Aug 2010 13:54:51 +0000

Great Script – works a charm for exporting the VM. However it is failing everytime when trying to import them back in, Are there some options that I need to enable or disable? Running 5.6 but tried it on 5.5 to no avail.

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by Nik Stapley

Nik Stapley — Thu, 12 Aug 2010 01:41:37 +0000

Very good, But after a reboot of the Xen Host the mount share is gone, how can we configure the XEN to keep the mount persistent?

Thanks
Nik

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by Brad

Brad — Wed, 28 Jul 2010 16:01:43 +0000

Very nice! I have it running with three servers with an NFS SAN, backing up ~30 guests to a local USB disk on one of the servers, and the darn thing just works. I like it!

I bought one of those USB “Toasters” that you just drop the drive into, and swap those out daily. Minor tweak to the script to mount and unmount when it’s done and off we went.

Much appreciated!

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by How to backup Xen Server VMs | Steve Garriques's Professional Blog

How to backup Xen Server VMs | Steve Garriques's Professional Blog — Wed, 21 Jul 2010 17:28:22 +0000

[...] His updated script works like butter and you can access it at this link here: http://www.andy-burton.co.uk/blog/index.php/2009-11/updated-citrix-xenserver-5-5-automatic-vm-backup... [...]

Comment on Citrix XenServer 5.5 Automated Live VM Backup to Windows CIFS Share by How to backup Xen Server VMs | Steve Garriques's Professional Blog

How to backup Xen Server VMs | Steve Garriques's Professional Blog — Wed, 21 Jul 2010 16:42:59 +0000

[...] [...]

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by ddub

ddub — Thu, 01 Jul 2010 20:01:02 +0000

Great script!
Does anyone know how to mask the password in the vm_backup.sh when backing up to a cifs share?
Thanks!

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by Berto

Berto — Wed, 30 Jun 2010 21:17:58 +0000

Nice, ill try tomorrow in my 5.6 servers and ill report about it as well.

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by Greg

Greg — Tue, 22 Jun 2010 14:24:51 +0000

Hello i am trying to do some snapshots to /backup which is cifs attached storage. But have following problem:

Error code: VM_SNAPSHOT_FAILED
Error parameters: Quiesce snapshot not supported
[2010-06-22_16-11-08] Quiesce snapshot failed:
[2010-06-22_16-11-09] Attempting normal snapshot
[2010-06-22_16-11-09] Snapshot 8b5d4665-d519-9ed9-e443-06615a24a9ed as ClearOS_5 .1_-_Vmavdd.com_snapshot
The SR backend does not support the operation (check the SR’s allowed operations )
sr: 34e12e12-5b33-1c7b-2c87-a271911ce101 (Local storage)
[2010-06-22_16-11-10] Normal snapshot failed:
[2010-06-22_16-11-10] snapshot_vm failed:
[2010-06-22_16-11-11] VM 8b5d4665-d519-9ed9-e443-06615a24a9ed backup failed
[2010-06-22_16-11-11] VM Backup Ended

I have googled a bit but unable to resolve it myself.
Help me please.

Comment on Updated Citrix XenServer 5.5 Automatic VM Backup Scripts by Dietmar

Dietmar — Mon, 21 Jun 2010 14:55:54 +0000

Hi Andy,

very nice script. It works fine, but sometimes we get this error:

[2010-06-21_15-36-08] Quiesce snapshot failed:
[2010-06-21_15-36-08] Attempting normal snapshot
[2010-06-21_15-36-08] Snapshot e5427941-d14a-0bf8-b9a8-3170485dad83 as DUGW01_snapshot
[2010-06-21_15-36-18] snapshot_vm succeeded: 0cd1fbfe-0810-b2dc-bf68-ee0e7bd23094
[2010-06-21_15-36-18] Remove template status 0cd1fbfe-0810-b2dc-bf68-ee0e7bd23094
[2010-06-21_15-36-18] remove_template succeeded:
[2010-06-21_15-36-18] Disable HA 0cd1fbfe-0810-b2dc-bf68-ee0e7bd23094
[2010-06-21_15-36-18] disable_ha succeeded:
[2010-06-21_15-36-18] Export VM 0cd1fbfe-0810-b2dc-bf68-ee0e7bd23094 as DUGW01-2010-06-21_15-36-08.xva
The server failed to handle your request, due to an internal error. The given message may give details useful for debugging the problem.
message: Unix.Unix_error(13, “read”, “”)
[2010-06-21_15-53-11] export_vm failed:
[2010-06-21_15-53-11] VM e5427941-d14a-0bf8-b9a8-3170485dad83 backup failed

After that, the VM (Windows 2003 R2 Server) with this UUID crashes with a BlueScreen. We have to remove the snapshots and after that, we can restart this vm.

Any idea what it is?

Greetz from Duisburg, Germany
Dietmar