dd if=/dev/zero of=/dev/md0 bs=200b
-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Derek Listmail
Acct
Sent: Friday, August 06, 2004 2:07 PM
To: linux-raid@vger.kernel.org
Subject: Scrub?
Many of the hardware raid controllers I've used have the ability to run
a
'scrub' on an array. Is there a way to do this on a linux software raid
5
array?
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Eh, that would delete the contents of the array, including the
filesystem. Is that what you meant by "scrub"? I thought "scrubbing"
meant looking for unreadable blocks and pro-actively replacing them
from parity. The latter would be very useful for a software raid 5
array since there is currently no facility in software raid for doing
this on-the-fly. I imagine it would be possible to write such a
utility in user space. I, too, wonder if anyone out there has
something that works.
-Kanoa
On Fri, 6 Aug 2004, Salyzyn, Mark wrote:
dd if=/dev/zero of=/dev/md0 bs=200b
-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Derek Listmail
Acct
Sent: Friday, August 06, 2004 2:07 PM
To: linux-raid@vger.kernel.org
Subject: Scrub?
Many of the hardware raid controllers I've used have the ability to run
a
'scrub' on an array. Is there a way to do this on a linux software raid
5
array?
-
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dd if=/dev/zero of=/dev/md0 bs=200b
This will fill the array with zeros, which isn't what I want to do. I'm
trying to verify the parity data for my raid 5 array is correct. I feel
one of my drives may be failing, and want to make sure the array is
consistent.
On Friday 06 Aug 2004 8:07 pm, Derek Listmail Acct wrote:
quoted
dd if=/dev/zero of=/dev/md0 bs=200b
This will fill the array with zeros, which isn't what I want to do. I'm
trying to verify the parity data for my raid 5 array is correct. I feel
one of my drives may be failing, and want to make sure the array is
consistent.
Thats array verification, not scrubbing (which is erasing the disk)