Difference between revisions of "Backups"
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Revision as of 15:41, 24 November 2016
Jason Cormie of IT Services supplied the following details
The volume is raided across 348 disks (mix of SSD,SATA, SAS with 29 being hot spares), and asynchronously mirrored to our secondary datacentre in Maths.
Data scrubbing runs in the background regularly to detect any bad blocks, before they become an issue.
Snapshots for rollback are also mirrored to the secondary DC.
We can do synchronous mirroring, but it would have a performance impact as you’d have to wait for commits from the far side every time you wrote.
Note: synchronous mirroring is not enabled.
