The only issue is that the md code only auto-scans non-MD partitions when
assembling a RAID array. You can use mdadm at boot time to put them
together as other people have shown, or you can add an option to the kernel
command line (LILO append=... option; other boot loaders have something
of the RAID1 arrays.
Guy
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Holger Kiehl
Sent: Thursday, January 27, 2005 3:13 AM
To: Neil Brown
Cc: linux-raid
Subject: Re: Software RAID 0+1 with mdadm.
I have since upgraded to mdadm 1.8 and setup a RAID10
On Thu, Jan 27, 2005 at 04:24:34PM +1100, Neil Brown wrote:
On Wednesday January 26, [EMAIL PROTECTED] wrote:
This bug that's fixed in 1.9.0, is in a bug when you create the array? ie
do we need to use 1.9.0 to create the array. I'm looking to do the same but
my bootdisk currently only has
On Thu, Jan 27, 2005 at 10:50:43AM -0500, Guy wrote:
RAID10 will work with an odd number of disks! If really is cool!
It will? How? Does it just make the last mirror pair have 3
disks or what?
If so then wouldn't it be better just to not have that disk under
md and use it for someting else?
: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Luca Berra
Sent: Wednesday, January 26, 2005 9:17 AM
To: linux-raid@vger.kernel.org
Subject: Re: Software RAID 0+1 with mdadm.
On Tue, Jan 25, 2005 at 02:28:21PM -0800, Brad Dameron wrote:
Everything seems ok after boot. But again
, January 27, 2005 11:19 AM
To: 'linux-raid'
Subject: RAID-10 with odd number of disks (was Re: Software RAID 0+1 with
mdadm.)
On Thu, Jan 27, 2005 at 10:50:43AM -0500, Guy wrote:
RAID10 will work with an odd number of disks! If really is cool!
It will? How? Does it just make the last mirror pair
On Thu, Jan 27, 2005 at 12:16:31PM -0500, Guy wrote:
It rotates the pairs!
Assume 3 disks, A, B and C.
Each stripe would be on these disks:
A+B
C+A
B+C
A+B
C+A
B+C
...
Hmm, difficult to visualise and comprehend if there are any
differences as opposed to normal RAID-10.
Is this anything
On Thu, Jan 27, 2005 at 05:27:00PM +, Andy Smith wrote:
On Thu, Jan 27, 2005 at 12:16:31PM -0500, Guy wrote:
It rotates the pairs!
Assume 3 disks, A, B and C.
Each stripe would be on these disks:
A+B
C+A
B+C
A+B
C+A
B+C
...
Hmm, difficult to visualise and comprehend if
-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Andy Smith
Sent: Thursday, January 27, 2005 12:42 PM
To: 'linux-raid'
Subject: Re: RAID-10 with odd number of disks (was Re: Software RAID 0+1
with mdadm.)
On Thu, Jan 27, 2005 at 05:27:00PM +, Andy Smith wrote:
On Thu, Jan 27
To: 'linux-raid'
Subject: RAID-10 with odd number of disks (was Re: Software RAID 0+1 with
mdadm.)
On Thu, Jan 27, 2005 at 10:50:43AM -0500, Guy wrote:
RAID10 will work with an odd number of disks! If really is cool!
It will? How? Does it just make the last mirror pair have 3
disks or what?
If so
On Tue, Jan 25, 2005 at 02:28:21PM -0800, Brad Dameron wrote:
Everything seems ok after boot. But again no /dev/md0 in /proc/mdstat.
But then if I do a mdadm --assemble --scan it will then load /dev/md0.
there is a bug in mdadm, see my mail patches for mdadm 1.8.0 or wait
for 1.9.0
L.
--
Luca
-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Luca Berra
Sent: Wednesday, January 26, 2005 9:17 AM
To: linux-raid@vger.kernel.org
Subject: Re: Software RAID 0+1 with mdadm.
On Tue, Jan 25, 2005 at 02:28:21PM -0800, Brad Dameron wrote:
Everything seems ok after boot. But again
On Tue, 2005-01-25 at 15:04, Guy wrote:
For a more stable array, build a RAID0 out of 2 RAID1 arrays.
Like this:
mdadm --create /dev/md1 --level=1 --chunk=4 --raid-devices=2 /dev/sdb1
/dev/sdc1
mdadm --create /dev/md2 --level=1 --chunk=4 --raid-devices=2 /dev/sdd1
/dev/sde1
mdadm
On Wednesday January 26, [EMAIL PROTECTED] wrote:
This bug that's fixed in 1.9.0, is in a bug when you create the array? ie
do we need to use 1.9.0 to create the array. I'm looking to do the same but
my bootdisk currently only has 1.7.soemthing on it. Do I need to make a
custom bootcd with
On Tuesday January 25, [EMAIL PROTECTED] wrote:
Been trying for days to get a software RAID 0+1 setup. This is on SuSe
9.2 with kernel 2.6.8-24.11-smp x86_64.
I am trying to setup a RAID 0+1 with 4 250gb SATA drives. I do the
following:
mdadm --create /dev/md1 --level=0 --chunk=4
-syncing 2 disks of data.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brad Dameron
Sent: Wednesday, January 26, 2005 3:33 PM
To: linux-raid@vger.kernel.org
Subject: RE: Software RAID 0+1 with mdadm.
On Tue, 2005-01-25 at 15:04, Guy wrote:
For a more stable
For a more stable array, build a RAID0 out of 2 RAID1 arrays.
Like this:
mdadm --create /dev/md1 --level=1 --chunk=4 --raid-devices=2 /dev/sdb1
/dev/sdc1
mdadm --create /dev/md2 --level=1 --chunk=4 --raid-devices=2 /dev/sdd1
/dev/sde1
mdadm --create /dev/md0 --level=0 --chunk=4 --raid-devices=2
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