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Date: Mon, 21 Dec 2009 11:48:36 +0100
From: Emmanuel Florac <eflorac@intellique.com>
Subject: Re: please help me
Message-ID: <20091221114836.1554ced4@harpe.intellique.com>
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To: rajkumar <rajkumar@storageindia.com>
Cc: xfs@oss.sgi.com

Le Mon, 21 Dec 2009 14:45:49 +0530
rajkumar <rajkumar@storageindia.com> =E9crivait:

> i have scientific linux 4.7 server with kernel 2.6.9.-78.ELsmp and =

> installed the xfs rpms for supporting xfs filesystem.Now created  a =

> volume of 300TB plz tell me how to format.please give commands how to =

> format 300TB using xfs filesystem.

Are you running a 64 bits kernel? A 32 bits kernel won't be able to use
a filesystem bigger than 16 TB.

You need to install the xfs-progs too, to have mkfs.xfs.

To format a 300TB xfs, basically just do

mkfs.xfs /dev/whatever

However you'd better configure your filesystem to match the underlying
device. You must be using some sort of RAID array; you should do it
this way:

mkfs.xfs -d su=3D<value>,sw=3D<numberofdataDisks> /dev/whatever

Where <value> is the RAID array stripe size (in bytes, or append a k or
m accordingly) and <sw> the number of data disks (removing parity and
spare drives from the total).

-- =

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

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