Thanks for the answer. I hadn't realized that the hot added drive
would become a hot spare. I had figured out that reconstruction
probably takes the first RAID drive as the source for updating the
other drives, so that a ``mkraid --really-force'' would really do the trick.
However, this would mean a little downtime for the array (umount, raidstop
and raidstart).
++Jos
On Mon, Mar 05, 2001 at 04:11:11PM +1100, Neil Brown wrote:
On Sunday March 4, [EMAIL PROTECTED] wrote:
Hi folks,
I have a two-disk RAID 1 test array that I was playing with. I then
decided to hot add a third disk using ``raidhotadd''. The disk was added
to the array, but as far as I could see, the RAID software did not start
a reconstruction of that newly added disk. A skimmed through the driver
code a bit, and could not really locate the point where the
reconstruction was initiated. Am I missing something?
The third disk that you added became a hot spare.
You cannot add an extra active drive to a RAID array without using
mkraid.
In you case, you could edit /etc/raidtab to list the third strive as a
"failed-disk" instead of a "raid-disk", and set the "nr-taid-disks" to
3.
Then run mkraid. It shouldn't destroy any data, but the raid system
should automatically start building data onto the new drive.
NeilBrown
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