Piszcz
Subject: Re: RAID 6 grow problem
raid6 reshape wasn't added until 2.6.21. Before that only raid5 was
supported.
You also need to ensure that CONFIG_MD_RAID5_RESHAPE=y.
I don't see that in the config. Should I add it? Then reboot?
Don't know how I missed it first time
From: Neil Brown
Subject: RE: RAID 6 grow problem
On Tuesday June 5, [EMAIL PROTECTED] wrote:
I have an EPoX 570SLI motherboard with 3 SATAII drives, all 320GiB: one
Hitachi, one Samsung, one Seagate. I built a RAID5 out of a partition
carved from each. I can issue a 'check' command
On Wed, 6 Jun 2007, Daniel Korstad wrote:
You say you have a RAID with three drive (I assume RAID5) with a read
performance of 133MB/s. There are lots of variables, file system
type, cache tuning, but that sounds very reasonable to me.
I just did the math quickly - assuming each drive can
On Wednesday June 6, [EMAIL PROTECTED] wrote:
A question posed by a friend is this: assuming 64K blocks, if I read a
single stripe from a raid (128K, right?) then two drives will be used
(say, drive A and drive B). If I want the next 128K then which drives
are most likely to be used?
Hello, when I run:
mdadm /dev/md1 --grow --raid-devices 16 --backup-file=/md1backup
I get:
mdadm: Need to backup 1792K of critical section..
mdadm: Cannot set device size/shape for /dev/md1: Invalid argument
Any help?
Iain
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On Sat, 2 Jun 2007, Iain Rauch wrote:
Hello, when I run:
mdadm /dev/md1 --grow --raid-devices 16 --backup-file=/md1backup
I get:
mdadm: Need to backup 1792K of critical section..
mdadm: Cannot set device size/shape for /dev/md1: Invalid argument
Any help?
Iain
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To unsubscribe from
For the critical section part, it may be your syntax..
When I had the problem, Neil showed me the path! :)
I don't think it is incorrect, before I thought it was supposted to specify
an actual file so I 'touch'ed one and it says file exists.
For your issue, do you have raid5/6 GROW support
On Sat, 2 Jun 2007, Iain Rauch wrote:
For the critical section part, it may be your syntax..
When I had the problem, Neil showed me the path! :)
I don't think it is incorrect, before I thought it was supposted to specify
an actual file so I 'touch'ed one and it says file exists.
For your
On Saturday June 2, [EMAIL PROTECTED] wrote:
For the critical section part, it may be your syntax..
When I had the problem, Neil showed me the path! :)
I don't think it is incorrect, before I thought it was supposted to specify
an actual file so I 'touch'ed one and it says file exists.
raid6 reshape wasn't added until 2.6.21. Before that only raid5 was
supported.
You also need to ensure that CONFIG_MD_RAID5_RESHAPE=y.
I don't see that in the config. Should I add it? Then reboot?
I used apt-get install mdadm to first install it, which gave me 2.5.x then I
downloaded the new
On Saturday June 2, [EMAIL PROTECTED] wrote:
raid6 reshape wasn't added until 2.6.21. Before that only raid5 was
supported.
You also need to ensure that CONFIG_MD_RAID5_RESHAPE=y.
I don't see that in the config. Should I add it? Then reboot?
You reported that you were running a 2.6.20
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