From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan <alan@lxorguk.ukuu.org.uk>
Subject: Re: end to end error recovery musings
Date: Mon, 26 Feb 2007 17:01:18 +0000
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Cc: Theodore Tso <tytso@mit.edu>, Neil Brown <neilb@suse.de>, "H. Peter Anvin" <hpa@zytor.com>, Linux-ide <linux-ide@vger.kernel.org>, linux-scsi <linux-scsi@vger.kernel.org>, linux-raid@vger.kernel.org, Tejun Heo <htejun@gmail.com>, James Bottomley <James.Bottomley@SteelEye.com>, Mark Lord <mlord@pobox.com>, Jens Axboe <jens.axboe@oracle.com>, "Clark, Nathan" <Clark_Nathan@emc.com>, "Singh, Arvinder" <Singh_Arvinder@emc.com>, "De Smet, Jochen" <DeSmet_Jochen@emc.com>, "Farmer, Matt" <Farmer_Matt@emc.com>, linux-fsdevel@vger.kernel.org, "Mizar, Sunita" <Mizar_Sunita@emc.com>
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> I think that this is mostly true, but we also need to balance this against the 
> need for higher levels to get a timely response.  In a really large IO, a naive 
> retry of a very large write could lead to a non-responsive system for a very 
> large time...

And losing the I/O could result in a system that is non responsive until
the tape restore completes two days later....