Slow Exchange backups to disk
Updated: 23 May 2010 | 4 comments
Hello,
I am having some problems with Exchange 2003 backups using GRT. I have a policy setup that backs up the IS to disk and then duplicates it to tape. The duplication works perfect but the backup is very very slow. I have a 164GB Information Store and it takes about 19 hours to backup at a rate of 100MB/Min.
The backup server has 2 Raid 5 Arrays. One has 14 10k drives the other has 15 10k drives. Using diskeeper they are at a very low fragmentation so that is not an issue.
The backup server and exchange server are on the same Gigabit switch running teamed Gigabit NIC's. Bandwidth shouldn't be an issue.
AOFO is turned off as it is not needed for Exchange backups. I am not backing up individual mailboxes. I am not using any kind of Legacy methods. I am not using any compression and I am not using any single instance backup methods.
What could possibly be causing such slow backup speeds?
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