xfs
[Top] [All Lists]

Re: Question/Problem: Mounting of XFS filesystem takes a lot of time

To: pg_xf2@xxxxxxxxxxxxxxxxxx (Peter Grandi)
Subject: Re: Question/Problem: Mounting of XFS filesystem takes a lot of time
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Thu, 21 Oct 2010 19:05:42 +0200
Cc: Linux XFS <xfs@xxxxxxxxxxx>
In-reply-to: <19647.34574.786118.56593@xxxxxxxxxxxxxxxxxx>
Organization: Intellique
References: <1287593846.2338.5.camel@nukebox> <19647.34574.786118.56593@xxxxxxxxxxxxxxxxxx>
Le Thu, 21 Oct 2010 01:19:26 +0100 vous écriviez:

> Usually SATA drives are pogrammed to do a large number of firmware
> driven retries in case of data errors, hanging the IO subsystem,

This is only the case for Desktop SATA drives. More expensive
"enterprise" SATA drives (Seagate ES or ES2 series, Hitachi Ultrastar,
etc) behave like SAS drives.
Desktop SATA drives also lack the logic to manage properly vibrations
happening in large arrays, which can totally kill performance.

-- 
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |   <eflorac@xxxxxxxxxxxxxx>
                    |   +33 1 78 94 84 02
------------------------------------------------------------------------

<Prev in Thread] Current Thread [Next in Thread>