On Fri, Aug 22, 2008 at 03:21:51PM -0400, Stephen Harris wrote:
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)...
In the end I booted a CentOS 5.2 DVD in rescue mode. This appears to
have improved since
So then I tried the next step:
mdadm --grow --raid-devices=5 /dev/md3
But now I have problems...
mdadm: Cannot set device size/shape for /dev/md3: Invalid argument
What happens, if you add
--size=max
?
- Jussi
--
Jussi Hirvi * Green Spot
Topeliuksenkatu 15 C * 00250 Helsinki *
On Fri, Aug 22, 2008 at 08:26:01PM +0300, Jussi Hirvi wrote:
So then I tried the next step:
mdadm --grow --raid-devices=5 /dev/md3
But now I have problems...
mdadm: Cannot set device size/shape for /dev/md3: Invalid argument
What happens, if you add
--size=max
% mdadm --grow
What happens, if you add
--size=max
Stephen Harris [EMAIL PROTECTED] escribio (22.8.2008 20:27)
% mdadm --grow --raid-devices=5 --size=max /dev/md3
mdadm: can change at most one of size, raiddisks, and layout
--size=max is for use when a failed disk is replaced with a bigger one.
Ok. I
On Fri, Aug 22, 2008 at 08:41:25PM +0300, Jussi Hirvi wrote:
How about simply
% mdadm --grow /dev/md3
% mdadm --grow /dev/md3
mdadm: no changes to --grow
What do you get with
% mdadm --detail /dev/md3
/dev/md3:
Version : 00.90.01
Creation Time : Wed Aug 20 08:44:30 2008
Stephen Harris wrote:
On Fri, Aug 22, 2008 at 08:41:25PM +0300, Jussi Hirvi wrote:
How about simply
% mdadm --grow /dev/md3
% mdadm --grow /dev/md3
mdadm: no changes to --grow
What do you get with
% mdadm --detail /dev/md3
/dev/md3:
snip
Number Major Minor
On Fri, Aug 22, 2008 at 02:25:20PM -0400, Ross S. W. Walker wrote:
I don't think you can grow it without backing it up, destroying
it, rebuilding it with 5 devices, then restoring.
You _can_... but it requires a newer kernel. See, for example,
Stephen Harris wrote:
A RAID-5 set can be expanded by adding extra drives. This
requires restriping the array which means (almost) every
block must be written to a different place.
This option allows such restriping to be done while the array
is
John R Pierce wrote:
Stephen Harris wrote:
A RAID-5 set can be expanded by adding extra drives. This
requires restriping the array which means (almost) every
block must be written to a different place.
This option allows such restriping to be done
On Fri, Aug 22, 2008 at 02:50:29PM -0400, Ross S. W. Walker wrote:
It would probably be faster to backup, rebuild and restore too...
The whole reason I need to extend like this is because I don't have any
easy way of backing up 1.3Tbytes of data.
While the rebuild is happening the existing
Stephen Harris wrote:
On Fri, Aug 22, 2008 at 02:50:29PM -0400, Ross S. W. Walker wrote:
It would probably be faster to backup, rebuild and restore too...
The whole reason I need to extend like this is because I
don't have any
easy way of backing up 1.3Tbytes of data.
While the rebuild
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
Stephen Harris wrote:
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 Fri, Aug 22, 2008 at 03:31:31PM -0400, Ross S. W. Walker wrote:
I wouldn't use Ubuntu or any Debian based distro cause it's EVMS just
might bugger up the LVM config...
Huh. Dunno what EVMS is, but thanks for the warning!
Instead of a second machine, how about an external disk enclosure?
Stephen Harris wrote:
On Fri, Aug 22, 2008 at 03:31:31PM -0400, Ross S. W. Walker wrote:
I wouldn't use Ubuntu or any Debian based distro cause it's EVMS just
might bugger up the LVM config...
Huh. Dunno what EVMS is, but thanks for the warning!
EVMS is like a storage management
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