R710/PERC H700/H800/MD1200 disk naming
Jefferson_Cowart at cuc.claremont.edu
Mon Aug 2 12:20:09 CDT 2010
The recommendations I've seen are to avoid using /dev/sdx for exactly this reason. Instead you can use either file system labels or otherwise persistent names generated by udev based on parameters that won't change.
Network and Systems Administrator
Claremont University Consortium
From: linux-poweredge-bounces at dell.com on behalf of Ken Nishimura
Sent: Mon 8/2/2010 10:12 AM
To: linux-poweredge at dell.com
Subject: R710/PERC H700/H800/MD1200 disk naming
Have a R710 running RHEL4.8 with a internal H700 supporting two virtual
drives using internal disks and a H800 supporting two virtual drives
in an external MD1200 enclosure.
It seems that the device name (/dev/sd?) that is assigned to each virtual
drive is somewhat arbitrary. It was in order of creation, but after
a reboot, it changed to order of enclosure/drive.
This, as you can imangine, is not a good thing. What is the best way
of locking a device name to a virtual disk? udev?
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