Backup strategy for large mailbox stores
baconm at email.unc.edu
Tue Feb 16 11:32:50 EST 2010
For those of you doing ZFS, what do you use to back up the data after a zfs
snapshot? We're currently on UFS, and would love to go to ZFS, but haven't
figured out how to replace ufsdump in our backup strategy.
UNC Chapel Hill
--On February 16, 2010 9:49:07 AM +0100 Eric Luyten <Eric.Luyten at vub.ac.be>
> On Tue, February 16, 2010 12:34 am, John Madden wrote:
>> Out of curiousity, how good is zfs with full fs scans when running in
>> the 100-million file count range? What do you see in terms of aggregate
>> MB/s throughput?
> ZFS is awesome.
> We have a ZFS pool composed of nine LUNs on an iSCSI-connected (2 x 1
> Gbps) EMC Celerra. All disks are 7200 rpm S-ATA.
> On our previous storage system (FC-AL connected StorageTek with 15k and
> 10k rpm FC disks) I was able to run more finds/dumps/... in parallel
> without impacting mail service performance or message delivery rate.
> Even now I can pull close to 100 MB/s from the mail section of the storage
> subsystem without users noticing. 48 GB RAM on the mailserver sure
> helps, plenty of ARC :-)
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