From: David Greaves <david@dgreaves.com>
To: andy liebman <andyliebman@aol.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Simulating Drive Failure on Mirrored OS drive
Date: Mon, 02 Oct 2006 09:02:13 +0100 [thread overview]
Message-ID: <4520C785.8010709@dgreaves.com> (raw)
In-Reply-To: <4520555B.4080000@aol.com>
andy liebman wrote:
> I tried simply unplugging one drive from its power and from its SATA
> connector. The OS didn't like that at all. My KDE session kept running,
> but I could no longer open any new terminals. I couldn't become root in
> an existing terminal that was already running. And I couldn't SSH into
> the machine.
That's likely to be because sata hotswap isn't supported (yet).
dmesg should give you more info.
> I know that simply unplugging a drive is not the same as a drive failing
> or timing out. But is there a more realistic way to simulate a failure
> so that I can know that the mirror will work when it's needed?
Read up on the md-faulty device.
Also, FWIW, md works just fine :)
(Lots of other things can go wrong so testing your setup is a food idea though)
David
next prev parent reply other threads:[~2006-10-02 8:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-01 23:55 Simulating Drive Failure on Mirrored OS drive andy liebman
2006-10-02 8:02 ` David Greaves [this message]
2006-10-02 17:54 ` andy liebman
2006-10-02 20:20 ` Michael Tokarev
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