[CentOS] Growing RAID5 on CentOS 4.6
lists at spuddy.org
Fri Aug 22 19:21:51 UTC 2008
On Fri, Aug 22, 2008 at 03:05:30PM -0400, Ross S. W. Walker wrote:
> Stephen Harris wrote:
> Or you could just boot from a LiveCD of a distro that was this and
> run a conversion there, it would make it unavailable during the
> conversion though.
*grin* My first email on this subject...
I wonder if I could boot off a Ubuntu CD or something and grow the array
that way. Would be annoying (many hours of server downtime)...
> If the array was part of a LVM VG, you could create another 4 drive
> array and add it to the VG and extend the LVs that way, or do a
> pvmove and move everything from the old array to the new.
Well, it _is_... the old array was 4*500Gb. The new array is 5*1Tb.
In each I've built a single VG/LV. But my machine can't handle 9 SATA
disks (power, controller limitations, space). So what I did was use one
of the TByte disks to copy the data, built the other 4 into an array,
copied the data from the last disk onto the array and then... failed to
extend the array.
I still have the old 4*500GB on a shelf, but I don't have anything I can
plug it into.
(My other option is to buy a couple of SATA controllers, build a second
machine then transfer data over the network)
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