From: Ming Zhang <mingz@ele.uri.edu>
To: Mike Hardy <mhardy@h3c.com>
Cc: PFC <lists@peufeu.com>, "Paul M." <paul@gpmidi.net>,
linux-raid@vger.kernel.org
Subject: Re: how to clone a disk
Date: Sat, 11 Mar 2006 18:10:31 -0500 [thread overview]
Message-ID: <1142118632.27020.13.camel@localhost.localdomain> (raw)
In-Reply-To: <44135877.2000207@h3c.com>
thanks a lot!
ming
On Sat, 2006-03-11 at 15:08 -0800, Mike Hardy wrote:
>
>
> Ming Zhang wrote:
> > On Sat, 2006-03-11 at 08:55 -0800, Mike Hardy wrote:
> >
> >>I can think of two things I'd do slightly differently...
> >>
> >>Do a smartctl -t long on each disk before you do anything, to verify
> >>that you don't have single sector errors on other drives
> >
> >
> > will this test interfere with normal disk io activity?
>
> If I understand the documentation correctly, it is not supposed to
> interfere with normal I/O. It's something the disk does when it can.
>
> Also, I do it on running systems with busy disks all the time (it's
> scheduled, actually, and runs automatically at the same time backups and
> things like that happen), and it is never noticable to me.
>
> *except* when it finds something, and it tells me there's a problem
> before any software notices. I love the advance warning...
>
> -Mike
next prev parent reply other threads:[~2006-03-11 23:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-11 0:56 how to clone a disk Ming Zhang
2006-03-11 11:53 ` Paul M.
2006-03-11 12:40 ` PFC
2006-03-11 16:55 ` Mike Hardy
2006-03-11 22:09 ` Ming Zhang
2006-03-11 23:08 ` Mike Hardy
2006-03-11 23:10 ` Ming Zhang [this message]
2006-03-11 22:08 ` Ming Zhang
2006-03-12 0:15 ` dean gaudet
2006-03-12 0:22 ` Ming Zhang
2006-03-12 0:31 ` dean gaudet
2006-03-12 0:36 ` Ming Zhang
2006-03-12 0:47 ` dean gaudet
2006-03-12 0:54 ` Ming Zhang
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