[CentOS] Growing RAID5 on CentOS 4.6
John R Pierce
pierce at hogranch.com
Fri Aug 22 18:43:23 UTC 2008
Stephen Harris wrote:
> A RAID-5 set can be expanded by adding extra drives. This
> requires "restriping" the array which means (almost) every
> block must be written to a different place.
> This option allows such restriping to be done while the array
> is online.
thats also a very risky operation as its extremely difficult to make it
restartable in case of a mishap during hte many-hours-long restriping
operation. I wouldn't undertake this on any production system without
a full backup first.
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