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Re: NetApp iscsi block alignment?



Cool. That kb article on NOW is definitely useful.  I don't have authorization to view that bugzilla bug though.  Oh well.

On Mon, May 12, 2008 at 1:33 PM, Ritesh Raj Sarraf <rsarraf@xxxxxxxxxx> wrote:
On Tuesday 13 May 2008 00:44:58 Myles Uyema wrote:
> We're setting up a Linux iSCSI lun and wonder whether NetApp accounts for a
> raw block device without partitions or with partitions?
>
> Should we simply format /dev/sdd as a filesystem, or should we partition it
> at /dev/sdd1 allocating the whole the disk?

Hello Myles,

There's a Performance Issue when partitioning LUNs. Partition alignment is
required for better performance.

Please follow to the below mentioned link for further details about how to
partition your LUN.
http://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb8190

You can also refer to the following Red Hat Bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=179390

Ritesh
--
Ritesh Raj Sarraf
Linux SAN Enginnering
NetApp Inc. - http://www.netapp.com

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