For Linux raid 0.90 use:
# raidhotadd /dev/mdX /dev/your_spare_disk
In fact any (hot)added drive/partition to a _complete_ running
raid set, will be designated as spare. Yes you can have more
than one spare...
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How do I add a spare disk to an existing RAID?
Thanks
Matthew Opoka
siliconsulting
3210 Wisconsin Ave Suite B
Vicksburg, MS. 39180
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> On Tue, 4 Apr 2000, "Gregory" == Gregory Leblanc wrote:
+> I've found some cash, and want to add a spare disk to our
+> raid5 array for
+> added redundancy.
+> Can this be done? It is a matter of
+> 1. raidstop
+> 2. add spare to raidtab
+> 3. raidhotadd spare
Gregory> T
> -Original Message-
> From: Darren Nickerson [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 04, 2000 2:29 PM
> To: [EMAIL PROTECTED]
> Subject: Adding a spare-disk to a RAID5 array?
>
> I've found some cash, and want to add a spare disk to our
> raid5
On Tue, Apr 04, 2000 at 10:28:47PM +0100, Darren Nickerson wrote:
> I've found some cash, and want to add a spare disk to our raid5 array for
> added redundancy.
>
> Can this be done? It is a matter of
>
> 1. raidstop
> 2. add spare to raidtab
> 3. raidhotadd spare
To add a s
I've found some cash, and want to add a spare disk to our raid5 array for
added redundancy.
Can this be done? It is a matter of
1. raidstop
2. add spare to raidtab
3. raidhotadd spare
or is it more a matter of
1. raidstop
2. cry
3. mkraid with
On Sun, 26 Dec 1999 13:40:51 +0100, you wrote:
>What is the entry "unused devices" in /proc/mdstat?
I believe this refers to /dev/md[x] devices that are defined but
unused.
Greetings
Marc
--
-- !! No courtesy copies, please !! -
Marc Haber | "
e
> if on of the
> other disks fails.
>
> <>< Lance.
>
> Johan Ekenberg wrote:
>
> > I recently inquired about adding a spare-disk to an operating
> RAID-5 array,
> > and was given the advice to use raidhotadd. I've tried this and
> want to make
are in the array with data, and [n]...
are the spares, as shown from /proc/mdstat.
You are in good shape for the hda2 disk to kick in as the spare if on of the
other disks fails.
<>< Lance.
Johan Ekenberg wrote:
> I recently inquired about adding a spare-disk to an operating RAID-5 arra
I recently inquired about adding a spare-disk to an operating RAID-5 array,
and was given the advice to use raidhotadd. I've tried this and want to make
sure that the result is the one I should expect. I thought that spare disks
would show up as an "unused device" in /proc/mdsta
I'm not sure where raidhotadd is talked about. It is a symbolic link to
raidstart. But, to use raidhotadd, use the following syntax...
raidhotadd raiddev sparedev
where:
raiddev -- is the /dev/md0 type device name of the currently running
raid array.
sparedev -- is the /dev/hda1 type
Sounds great. But there is no man-page for raidhotadd (?). Is there any
documentation somewhere? I feel reluctant to use this without
documentation/knowledge. Any info would be most helpful!
/Johan Ekenberg
> Use the raidhotadd utility. This updates the raid superblock on all the
> disks in the
L PROTECTED]>
Sent: Thursday, December 23, 1999 6:15 AM
Subject: Adding a spare-disk
> I use RAID-5 with 5 disks, using the RAID array for the entire
filesystem -
> booting from a floppy. Kernel 2.2.13ac2, raidtools 0.90.
> Persistent-superblock is set to 1 and there is no spare-disk.
I use RAID-5 with 5 disks, using the RAID array for the entire filesystem -
booting from a floppy. Kernel 2.2.13ac2, raidtools 0.90.
Persistent-superblock is set to 1 and there is no spare-disk. I just got an
extra disk and want to add it as a spare-disk. How can I update the
configuration without
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