On 29 Jun 2005, at 13:44, Colm Buckley wrote:
> Single Point Of Failure. No point in having RAIDed disks if the RAID
> controller itself is unreliable.
Slightly different thing though. A major point of using RAID disks is
not reliability but data security. If your raid controller dies, your
data becomes unavailable, but the same is true of e.g. your CPU, your
motherboard etc. Replace or repair the failed component, and your data
is back (assuming that the failure mode didn't include writing random
crap everywhere).
However, if you don't use RAID disks, and a disk fails, your data
similarly becomes unavailable - but after you have replaced the disk,
it stays unavailable.
Niall
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