[ovirt-users] Re: ovirt Storage Domain Cluster Filesystem?

Hi! We use oVirt with FC SAN in our environment. Basically you just make LUN in SAN and attach that to the Storage domain. oVirt uses LVM on top of that storage for VM's and this happens automatically. All nodes where the LUN is seen can use the storage. You can also add multiple LUNs in one storage domain. Be careful with this. If you have different types of backing store for LUNs things get interesting if you mix them in the same storage domain. I mean you don't know if VM is running on SSD, HD or partly on both (depends how LVM fills the space). And as far as I know you can't remove LUN from the domain. I made this mistake once when I added SSD LUN to the oVirt. I had to make a new storage domain to where I transferred the VM's and cleaned up the mistake after that. Lastly I created a new storage domain for SSD and added the LUN there. I suggest that you just try this. It's easier than you think. -Juhani On Thu, Oct 22, 2020 at 9:38 AM <lsc.oraes(a)gmail.com&gt; wrote: > > Hi all > > I come from Oracle VM x86 world and we are planning from moving Oracle VM to oVirt. > > I am having hard time understanding Storage Domains in oVirt. All our storage are SAN and I wonder how can we manage SAN LUN in oVirt to create a storage domain such that the VM guests can run in any host in the oVirt Cluster? > > For example in Oracle VM the Storage Repository (it is the Storage Domain in OVM words) are based on SAN LUNs and on top of that a cluster filesystem is created so all hosts in the cluster have concurrent access to the storage repository and the VM guest can be started in any of the hosts in the cluster. > > How do we accomplish the same in oVirt with SAN Storage? Which Cluster Filesystem is supported in Storage Domain? > > Or perhaps in oVirt the mechanism is totally different? > > Thank you > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/XMXDRNDT6BJ...