Thanks for the reply. I should have clarified these are regular FILE disk
pools, not Containers......
On Tue, May 11, 2021 at 4:21 PM Michael Prix <mich...@prix.one> wrote:
> Hello Zoltan,
>
> recovering deduped pools after a desaster, even a partial one, has some
> drawbacks.
> Deduplication information is bound to the storagepool, not the
> TSM-instance, so you have to restore the lost data to the same
> storagepool. There is no "restore volume", as there are no volumes as
> you know it with dedup pools. You lost part of unique data residing in
> the pool and that may be affect every single backup object stored in the
> pool.
> So the only possibility you have is:
> 1.) Identify the damaged, or lost, containers ("volumes" of the dedup
> pool) and mark them damaged or destroyed. Use "audit container" for
> this. In your case, as you might have lost some filespaces completely,
> "update stgpooldir" might be a faster solution.
> 2.) add additional space to the container pool as needed. This can be
> NFS storage, but be prepared for a massive performace drop.
> 3.) checkin any offsite tapes of the respective copy container pool
> 4.) run "restore stgpool"
> 5.) after completion, run "audit container stgpool=..". During the
> audit, you can use the pool for backup and restore. If you run into
> errors with restores, wait till the audit completes and perform another
> restore stgpool.
> 6.) Any damaged objects left can be repaired with additional backups or
> maybe you can let the objects expire. Damages objects might "heal" by
> themself during subsequent client backups into this pool. If the damaged
> chunck appears during a client backup, all pointers to that chunck will
> be rebound and the damaged original chunck will be expired.
>
> --
> Michael Prix
>
> On 5/11/21 9:55 PM, Zoltan Forray wrote:
> > 7.1.7.400 Linux server
> >
> > We had a multi-disk failure event occur in one of our PowerVaults so an
> > array is damaged along with lots of volumes.
> >
> > Tried to do a "restore stgpool" or "restore volume" to other stgpools but
> > it says you can't do that for deduped pools/volumes.
> >
> > We have been running movedata all night and it some cases it works or
> works
> > for a while and fails making the volume readonly.
> >
> > We have created an NFS mount to handle recovering what we can from
> offsite
> > tapes but can't figure how to do this.
> >
> > Trying to follow this procedure:
> >
> https://www.ibm.com/support/pages/recovering-lost-or-damaged-file-volumes-deduplicated-storage-pool
> >
> > but have soooo many questions it doesn't seem to answer.
> >
> > Following the above procedure, I am running AUDIT VOLUME but there are
> > thousands of volumes to process.
> >
> > We can't just restore a volume since I am guessing it will try to put it
> > back into the same stgpool which we don't want to do since this PV is
> > barely running, haven't got the replacement disks, etc......
> >
> > So how do I do this?
> >
> > --
> > *Zoltan Forray*
> > VMware Administrator
> > IBM Spectrum Protect Administrator
> > Virginia Commonwealth University
> > UCC/Office of Technology Services
> > www.ucc.vcu.edu
> > zfor...@vcu.edu - 804-828-4807
> > Don't be a phishing victim - VCU and other reputable organizations will
> > never use email to request that you reply with your password, social
> > security number or confidential personal information. For more details
> > visit http://phishing.vcu.edu/
> > <https://adminmicro2.questionpro.com>
>
--
*Zoltan Forray*
VMware Administrator
IBM Spectrum Protect Administrator
Virginia Commonwealth University
UCC/Office of Technology Services
www.ucc.vcu.edu
zfor...@vcu.edu - 804-828-4807
Don't be a phishing victim - VCU and other reputable organizations will
never use email to request that you reply with your password, social
security number or confidential personal information. For more details
visit http://phishing.vcu.edu/
<https://adminmicro2.questionpro.com>
