Posted by: Anonymous
[ip: 76.176.11.235]
on September 11, 2008 07:18 PM
If one of your disks fails it will take a very long time to recreate it on a hot spare during which time:
a) The performance of the array is much slower and
b) A second drive could fail, or
c) Have a recoverable error: this will not lose data, but it will stop the rebuild and take the array offline.
I use mirroring with more than two drives. Its more costly, but:
a) You get N times the read speed and can do N simultaneous seeks
b) Each drive is a 100% image.
c) To do a back-up, just take out one of the drives...
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Wouldn't use RAID5
Posted by: Anonymous [ip: 76.176.11.235] on September 11, 2008 07:18 PMa) The performance of the array is much slower and
b) A second drive could fail, or
c) Have a recoverable error: this will not lose data, but it will stop the rebuild and take the array offline.
I use mirroring with more than two drives. Its more costly, but:
a) You get N times the read speed and can do N simultaneous seeks
b) Each drive is a 100% image.
c) To do a back-up, just take out one of the drives...
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