The error given when ovirt tries to add the iscsi volume to the data center
is "Error while executing action New SAN Storage Domain: Volume Group not
big enough; The minimal size for a Storage Domain is 10GB". there is over
30TB available
*David Johnson*
On Tue, Feb 15, 2022 at 12:25 PM David Johnson <djohnson(a)maxistechnology.com>
wrote:
Since the general recommendation seems to be to use iSCSI over NFS
wth
ovirt, I expect that I am missing something very obvious.
Question: How do I complete the iSCSI storage domain configuration?
Hardware configuration:
- cluster controller - physical system
- compute nodes - 2
- Current file store: NFS on TrueNAS
- To-be file store: iSCSI on TrueNAS
Problem reproduction:
1. We decided that the problems with NFS (regularly blocking and
causing VM's to go into paused instead of IOWait mode) outweighed the
benefit of ease of management, so we are preparing to move to iSCSI back
end on TrueNAS.
2. We created an iSCSI share on the to-be TrueNAS system and granted
access to a "ovirtuser" and group "1", with 30+ TB available
storage.
3. We started to add the iscsi share to the ovirt data center using
the GUI, under "Storage > Storage Domains" click the "New
Domain" button.
*Problem 1: *Ovirt immediately found the iSCSI share (yay), but says it
has 0 GB and will not allow us to add it to the data center, or edit or
remove it, so it is in a limbo state.
*Problem 2: *Ovirt shows it on the wrong network (miscommunication). It
is finding it on the general network instead of the isolated data network.
The TrueNAS will be removed from the general network as soon as
configuration is complete.
Thank you
*David Johnson*