linux-kernel - Re: Slow disks.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 22 Dec 2010 23:46:01 +0100
From:	Rogier Wolff <R.E.Wolff@...Wizard.nl>
To:	David Rees <drees76@...il.com>
Cc:	Rogier Wolff <R.E.Wolff@...wizard.nl>, linux-kernel@...r.kernel.org
Subject: Re: Slow disks.

On Wed, Dec 22, 2010 at 12:52:08PM -0800, David Rees wrote:
> On Mon, Dec 20, 2010 at 6:15 AM, Rogier Wolff <R.E.Wolff@...wizard.nl> wrote:
> > A friend of mine has a server in a datacenter somewhere. His machine
> > is not working properly: most of his disks take 10-100 times longer
> > to process each IO request than normal.
> 
> I've seen noticeable slowdowns before when the disks were running long
> SMART tests.  It doesn't seem to affect all drives the same.  The
> smartctl data you posted didn't say whether or not the disks were
> currently running a SMART test, but it's worth double checking.

No, the machine has trouble 24/7, I seriously doubt that it would be
running smart tests 24/7. 

	Roger. 

-- 
** R.E.Wolff@...Wizard.nl ** http://www.BitWizard.nl/ ** +31-15-2600998 **
**    Delftechpark 26 2628 XH  Delft, The Netherlands. KVK: 27239233    **
*-- BitWizard writes Linux device drivers for any device you may have! --*
Q: It doesn't work. A: Look buddy, doesn't work is an ambiguous statement. 
Does it sit on the couch all day? Is it unemployed? Please be specific! 
Define 'it' and what it isn't doing. --------- Adapted from lxrbot FAQ
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/