Daniel, OK so I think I get it now. While for other storage backends one pool can hold multiple volumes, when using iSCIS there is alwasy a 1 to 1 relationship for pool to volume? Each pool contains exactly one volume? David. On Wed, 5 May 2010, Daniel P. Berrange wrote:
On Wed, May 05, 2010 at 08:28:15AM -0500, David Ehle wrote:
Daniel,
Thank you Very much for you efforts. I'll be studying these with interest.
I also plan on replying to the previous response to my request for help on shard storage later today. I'm still trying to run some tests to see if I understand how the Pools vs Volumes work with libvirt and iSCSI.
For iSCSI
- Pool == A single target - Volume == A LUN within a target
So, if your iSCSI server exports many iSCSI targets, you'd setup a separate pool for each target you want to access from libvirt. This post covers iSCSI pool setup at a low level:
http://berrange.com/posts/2010/05/05/provisioning-kvm-virtual-machines-on-is...
Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|