Re: [Users] Lun snapshots by a san
pierre Labanowski:
Hello everybody,
I have a question, or more precisely information or best practice.
I use oVirt 3.1 with an attachment on fiber channel on my SAN. Makes it
even the San snapshots that are replicated on a remote site.
it's a procedure for adding a new "Storage" Domain to another Data
Centers (oVirt) in order to recover the state of a VM snapshoted by the SAN?
If I understand correctly, the remote SAN of you can snapshot the
storage domain(physical lun in the SAN) lively. And you hope to recover
the storage domain with the previous snapshot stored in the SAN.
So you create a new "storage" domain for another data center and restart
the VM from the newstorage domain. I am not sure if the VM disks in the
storage domain snapshot is in consistent date if the SAN snapshot the VM
in a running state. I think the VM OS should be notified and make sure
it is in consistent state before the SAN can do the snapshot, also the
VM OS should be notified with the finish of the snapshotting..
I've read the documentation on Disaster Recovery but it's for the
site-to-site failover (i don't have dual architecture of ovirt) while my
demand here is for the state recovered a current domain. And only to
export the VM(snapshoted by a san) for restore in the current storage
(production).
thank you
Pierre
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舒明 Shu Ming
Open Virtualization Engineerning; CSTL, IBM Corp.
Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming(a)cn.ibm.com or
shuming(a)linux.vnet.ibm.com
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