[F7] Most reliable RAID level

[Gilboa Davara]

On Wed, 2007-06-27 at 11:01 -0400, Kevin J. Cummings wrote:
> Stuart Murray-Smith wrote:
[snip]
> 
> RAID-1/3/5/6 all allow your data to run in degraded mode upon a single
> disk failure (and a double disk failure for RAID-6).  Most hardware-RAID
> systems will allow you to swap out the failed disk for a replacement
> without taking your array of disks offline.  Software-RAID doesn't
> usually allow this, though I suppose if you implemented an array of USB
> keys, you might be able to do this using software-raid since USB keys
> are already hot-pluggable.

Actually if you're using hot-swap SCSI or SATA, the kernel will support
hot-replacement.
You'll just need manually remove the old driver from the array and add
the new one.

- Gilboa