From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: Brad Campbell <lists2009@fnarfbargle.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Resync raid array problem
Date: Mon, 20 May 2013 15:45:17 +0200 (CEST) [thread overview]
Message-ID: <32232973.14.1369057517437.JavaMail.root@zimbra> (raw)
In-Reply-To: <51999C89.6090001@fnarfbargle.com>
> On 20/05/13 10:53, Keith Keller wrote:
> > On 2013-05-20, Tarak <tarakramgopal@gmail.com> wrote:
> >> We sucessfully created a Raid array of 8 harddisks.
> >> On power failure situation,
> >
> > You should probably have some sort of redundant power for such an
> > array--either a UPS or backup power provided by a building
> > generator.
> >
>
> Can't agree with this strongly enough. Grab the best UPS you can
> afford
> (and often that means getting a 10 year old one second hand and
> replacing the batteries). Best investment I _ever_ made was a 2000
> vintage APC SmartUPS 2200 and it cost all of about $200 second hand,
> plus another $100 for new batteries.
>
> Also, look at adding a bitmap to your array. Then it will only resync
> what it suspects might be dirty.
oh - and if this is a raid-5 array, better get a new disk and change to raid-6. 8 drives in raid-5 is rather a lot…
Vennlige hilsener / Best regards
roy
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next prev parent reply other threads:[~2013-05-20 13:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 1:57 Resync raid array problem Tarak
2013-05-20 2:53 ` Keith Keller
2013-05-20 3:46 ` Brad Campbell
2013-05-20 13:45 ` Roy Sigurd Karlsbakk [this message]
2013-05-20 3:43 ` Sam Bingner
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