Re: RAID6 and crashes (reporting back re. --bitmap)

On Fri, 11 Jun 2010 00:31:57 -0400
"Graham Mitchell" [off-list ref] wrote:

Can you do this on a live array, or can it only be done (as the docs seem to
suggest), with the create, build and grow options?

As 'grow' can (and must) be used on a live array you're question doesn't
exactly make sense.
Yes: it can be done on a live array.

NeilBrown

G

quoted

-----Original Message-----
From: linux-raid-owner@vger.kernel.org [mailto:linux-raid-
owner@vger.kernel.org] On Behalf Of Roman Mamedov
Sent: Thursday, June 10, 2010 10:51 PM
To: Miles Fidelman
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID6 and crashes (reporting back re. --bitmap)

On Thu, 10 Jun 2010 18:40:11 -0400
Miles Fidelman [off-list ref] wrote:

quoted

Yes... went with internal.

I'll keep an eye on write performance.  Do you happen to know, off
hand, a magic incantation to change the bitmap-chunk size? (Do I need
to remove the bitmap I just set up and reinstall one with the larger
chunk
size?)

Remove (--bitmap=none) then add again with new --bitmap-chunk.

--
With respect,
Roman

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