I currently have a 2 drive RAID-1 array. I would like to convert it into
a 3 drive RAID-5 array. I'd rather avoid raidreconf because I'v never
used it before. It seems to me, that I should be able to run the existing
RAID-1 in degraded mode (only one drive), and then copy it's contents to a
degraded (only two drive) RAID-5 array. The question, of course, is how
do I create a RAID-5 array in degraded mode? After the copy, I would then
hotadd the other former RAID-1 drive into the RAID-5 and let it
reconstruct the array.
Any thoughts? Please reply to me directly, I'm off the list for now.
Thanks, Ryan Mack
From: Adam Luter <hidden> Date: 2003-02-26 16:57:13
Using 'missing' for the device name for the missing devices.
-Gryn (Adam Luter)
On Wed, Feb 26, 2003 at 08:22:13AM -0800, rmack@mackman.net wrote:
I currently have a 2 drive RAID-1 array. I would like to convert it into
a 3 drive RAID-5 array. I'd rather avoid raidreconf because I'v never
used it before. It seems to me, that I should be able to run the existing
RAID-1 in degraded mode (only one drive), and then copy it's contents to a
degraded (only two drive) RAID-5 array. The question, of course, is how
do I create a RAID-5 array in degraded mode? After the copy, I would then
hotadd the other former RAID-1 drive into the RAID-5 and let it
reconstruct the array.
Any thoughts? Please reply to me directly, I'm off the list for now.
Thanks, Ryan Mack
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I'm interested in this as well.
Isn't a RAID-5 array with two missing drives broken?
Has anyone actually tried this? I don't have any spare
drives to play with to test.
The other option is to break the RAID-1, create a new
RAID-5 with the two drives and the third, RAID-1, drive
as the missing drive in the RAID-5 set. Copy over the
data from the RAID-1 drive and then add that drive back
into the RAID-5 array and it should rebuild.
Any thoughts?
Regards,
Kourosh
At 08:57 AM 2/26/2003, Adam Luter wrote:
Using 'missing' for the device name for the missing devices.
-Gryn (Adam Luter)
On Wed, Feb 26, 2003 at 08:22:13AM -0800, rmack@mackman.net wrote:
quoted
I currently have a 2 drive RAID-1 array. I would like to convert it into
a 3 drive RAID-5 array. I'd rather avoid raidreconf because I'v never
used it before. It seems to me, that I should be able to run the existing
RAID-1 in degraded mode (only one drive), and then copy it's contents to a
degraded (only two drive) RAID-5 array. The question, of course, is how
do I create a RAID-5 array in degraded mode? After the copy, I would then
hotadd the other former RAID-1 drive into the RAID-5 and let it
reconstruct the array.
Any thoughts? Please reply to me directly, I'm off the list for now.
Thanks, Ryan Mack
From: Adam Luter <hidden> Date: 2003-02-26 18:11:25
Devices, was a mistake, I meant to say device. You're wanting to do
the same as Ryan. No reason it shouldn't work. Just know that RAID-5
in degraded mode can be kinda slow.
-Adam
On Wed, Feb 26, 2003 at 09:59:19AM -0800, Kourosh Ghassemieh wrote:
I'm interested in this as well.
Isn't a RAID-5 array with two missing drives broken?
Has anyone actually tried this? I don't have any spare
drives to play with to test.
The other option is to break the RAID-1, create a new
RAID-5 with the two drives and the third, RAID-1, drive
as the missing drive in the RAID-5 set. Copy over the
data from the RAID-1 drive and then add that drive back
into the RAID-5 array and it should rebuild.
Any thoughts?
Regards,
Kourosh
At 08:57 AM 2/26/2003, Adam Luter wrote:
quoted
Using 'missing' for the device name for the missing devices.
-Gryn (Adam Luter)
On Wed, Feb 26, 2003 at 08:22:13AM -0800, rmack@mackman.net wrote:
quoted
I currently have a 2 drive RAID-1 array. I would like to convert it into
a 3 drive RAID-5 array. I'd rather avoid raidreconf because I'v never
used it before. It seems to me, that I should be able to run the
existing
quoted
RAID-1 in degraded mode (only one drive), and then copy it's contents to
a
quoted
degraded (only two drive) RAID-5 array. The question, of course, is how
do I create a RAID-5 array in degraded mode? After the copy, I would
then
quoted
hotadd the other former RAID-1 drive into the RAID-5 and let it
reconstruct the array.
Any thoughts? Please reply to me directly, I'm off the list for now.
Thanks, Ryan Mack
-
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More majordomo info at http://vger.kernel.org/majordomo-info.html