On Dec 11, 2008, at 9:46 AM, Mikael Abrahamsson <swmike@xxxxxxxxx>
wrote:
On Thu, 11 Dec 2008, John Robinson wrote:
But my 1U server only physically has room for 4 drives. It doesn't
matter how many extra controllers I buy, I can't attach more drives.
You can use a temporary external eSATA enclosure, pvmove the data if
you're using LVM, then take downtime when you exchange your new
drives into the internal drive bays (or you could even move them one
by one by hotremoving one drive from the eSATA enclosure into the
internal drive bays.
What about on a Friday, one of his drives fails, but he doesn't have
spare hardware? If he has enough freespace he can shrink the FS and
array size, then reshape from 4 to 3 drives to regain parity for
protection over the weekend.
If degrading an array multiple times to support expansion by replacing
one drive at a time is acceptable practice, why is degrading once for
array contraction frowned upon?
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