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From: Mel <fbsd.questions@rachie.is-a-geek.net>
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Date: Thu, 18 Sep 2008 19:53:10 +0200
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Cc: Silvia Asongwe <silvason911@gmail.com>
Subject: Re: can't open /dev/da1s1e: Input/output error
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On Thursday 18 September 2008 11:42:39 Silvia Asongwe wrote:
> I have done fsck but it doesn't seem to fix the problem.
> i can't ssh m server from another machine, and it's my ns server, i really
> need it to be up and running
>
> What else can i do?

Most likely your disk is dying. To be sure, if you have /var/log/messages, do 
a grep _DMA /var/log/messages and check for READ_DMA and WRITE_DMA errors. If 
you have a lot of those, replace cable to rule out a faulty cable else 
nothing else will help then replacing the disk.
Without a /var/log/messages (ie. da1s1e = /var), your best bet are diagnostic 
tools from your disk vendor.

-- 
Mel

Problem with today's modular software: they start with the modules
    and never get to the software part.