Re: mdadm help

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On Wed, 19 Oct 2011 20:49:27 -0600 Yathindra <ydev@xxxxxxxxxxx> wrote:

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

NeilBrown


> 
> Thanks,
> Yathi
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