From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.de>
Subject: Re: mdadm help
Date: Thu, 20 Oct 2011 14:03:15 +1100
Message-ID: <20111020140315.716d9c2e@notabene.brown>
References: <4E9F8C37.1060706@cs.utah.edu>
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To: Yathindra <ydev@cs.utah.edu>
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On Wed, 19 Oct 2011 20:49:27 -0600 Yathindra <ydev@cs.utah.edu> wrote:

> Hi,
>=20
> I'm trying to use the faulty personality of mdadm tool to inject various=
=20
> disk failure patterns
> such as medium errors, unresponsive disk etc.
>=20
> I'm wondering if there is an option to delay commands to get an=20
> unresponsive behavior.

No, there is no way to get a delay.  You either get a success or a failure.

> Also, does rt (readtransient) and wt (writetransient) fault options act=20
> as medium errors.

They simple report an error.  The linux block layer doesn't distinguish
reliably amongst different types or errors (or it didn't last time I checke=
d).

NeilBrown


>=20
> Thanks,
> Yathi
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