10-16-2011 06:06 PM
I am currently building a new EV 9.0 server and am wondering if there are any recommendations on partition sizes for vault stores?
We currently have about 8TB of archived mail in 1 of our stores and I am wondering whether I create one 9TB lun on the new server or break the disk up into smaller luns.
I haven't been able to find any recommendations on size of luns and don't want to create a massive lun if it is not recommended.
Thanks, Fiona
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10-16-2011 09:04 PM
10-16-2011 09:04 PM
10-17-2011 05:58 PM
Also depends on what operating system you have and what storage solution you are using. On windows 2003 for example you wouldn't go over 2TB per volume as the rebuild and diskcheck time grows exponentially. If it's a file device then larger partitions are available. We use between 600-800GB luns on Win 2k3 on SAN attached storage, which lasts us a month per volume. Moving forward I would look at around 1Tb luns under 2008 on file devices.
10-20-2011 03:57 AM
I think JW2 covered most of it.
What might be interesting to consider is if you expect that you'll need to move parts of what is stored for a vault store to different locations. E.g. you need to move a partition to a different volume.
Since it's quite easy to move a partition around, the smaller the partitions are the more granular you can make the move.
If you have one big partition and you need to move parts of it to somewhere else you need to use "move archive" or other tools that perform a migration.
If not using Collections or the backup software can't use e.g. NTFS change journal then I would suggest that you keep them fairly small e.g. 150-200GB per partition.
Otherwise the file scan of the backups will take a lot of time.