Justin Piszcz wrote:
mdadm /dev/md0 --fail /dev/sda1
On Tue, 26 Jun 2007, Maurice Hilarius wrote:
...
From time to time I want to "degrade" back to only single disk, and turn
off RAID as the overhead has some cost
From time to time I want to restore to RAID1 function, and re-synch the
pair to current.
Yes, this is a backup scenario..
Are there any Recommendations ( with mdadm syntax) please?
Plus
mdadm /dev/md0 --remove /dev/sda1
to take the drive out of the array and
mdadm /dev/md0 --add /dev/sda1
to put it back and start the re-sync.
When you mention "turn off RAID" do you mean to not even bring up the disk
as a degraded array? If all you do is fail and remove the partition, RAID is
actually still running to manage the single remaining partition, but I would
expect that overhead to be minimal.
--
Mike Accetta
ECI Telecom Ltd.
Transport Networking Division, US (previously Laurel Networks)
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