Import storage domain with different storage type?

Hi, We have an oVirt environment with a FC storage domain. Multiple LUNs on a SAN are exported to the oVirt nodes and combined in a single FC storage domain. The SAN replicates the disks to another storage box that has iSCSI connectivity. Is it possible to - in case of disaster - import the existing, replicated, storage domain as an iSCSI domain and import/run the VM's from that domain? Or is import of a storage domain only possible if they are the same type? Does it also work if multiple LUNs are needed to form the storage domain? Are there any special actions that should be performed beyond the regular import action? Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 ---------------------------------------------------------------- <<Any errors in spelling, tact or fact are transmission errors>>

On March 19, 2020 4:27:26 PM GMT+02:00, Rik Theys <Rik.Theys@esat.kuleuven.be> wrote:
Hi,
We have an oVirt environment with a FC storage domain. Multiple LUNs on a SAN are exported to the oVirt nodes and combined in a single FC storage domain.
The SAN replicates the disks to another storage box that has iSCSI connectivity.
Is it possible to - in case of disaster - import the existing, replicated, storage domain as an iSCSI domain and import/run the VM's from that domain? Or is import of a storage domain only possible if they are the same type? Does it also work if multiple LUNs are needed to form the storage domain?
Are there any special actions that should be performed beyond the regular import action?
Regards,
Rik
Hey Rik, Theoretically speaking, as they are both block-based storage - it should possible. Still you need to test that. Best Regards, Strahil Nikolov

On Thu, Mar 19, 2020 at 4:30 PM Rik Theys <Rik.Theys@esat.kuleuven.be> wrote:
Hi,
We have an oVirt environment with a FC storage domain. Multiple LUNs on a SAN are exported to the oVirt nodes and combined in a single FC storage domain.
The SAN replicates the disks to another storage box that has iSCSI connectivity.
Is it possible to - in case of disaster - import the existing, replicated, storage domain as an iSCSI domain and import/run the VM's from that domain? Or is import of a storage domain only possible if they are the same type? Does it also work if multiple LUNs are needed to form the storage domain?
If you detach the original (broken) FC storage domain you will be able to connect to the iSCSI server, and import the same domains from backup. You can try to create a test storage domain on one LUN, create a VM on this domain and wait until this storage domain is replicated to the other storage. Then detach the domain, and try to connect and attach the replicated domain and import the vm from this domain.
Are there any special actions that should be performed beyond the regular import action?
No Nir
participants (3)
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Nir Soffer
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Rik Theys
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Strahil Nikolov