topic Re: different device name after the reboot in Operating System - Linux

different device name after the reboot

avik — Sat, 14 Oct 2006 08:28:13 GMT

i have couple of block filesystems & raw devices in an RHEL 4.0 itanium box thats presented from a SAN (MSA1000). The problem is, after I configured the block & raw devices I am getting different device name. Has anyone encountered such problems or any idea whats happening?

Re: different device name after the reboot

avik — Sat, 14 Oct 2006 08:31:19 GMT

typo :

i have couple of block filesystems & raw devices in an RHEL 4.0 itanium box thats presented from a SAN (MSA1000). The problem is, after I configured the block & raw devices I am getting different device name after the server is rebooted. Has anyone encountered such problems or any idea whats happening?

Re: different device name after the reboot

Ivan Ferreira — Sat, 14 Oct 2006 08:37:19 GMT

Suddenly, this is a normal behaviour. If you want persistent devices names, you can use the devlabel command to match devices names with the device UUID.

Re: different device name after the reboot

avik — Sat, 14 Oct 2006 08:40:23 GMT

like u said, but I am sorry, how do you setup the persistant device name in linux ?

Re: different device name after the reboot

Ivan Ferreira — Sat, 14 Oct 2006 22:08:06 GMT

For detailed instructions, see:

http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/sysadmin-guide/ch-devlabel.html

Re: different device name after the reboot

Serviceguard for Linux — Sun, 15 Oct 2006 14:15:06 GMT

udev is the recommended method with RH4

Download the file LMPutils.tar.gz on the page â LUN Persistence and Migration Utility for Linuxâ . You can access this page directly using the URL link: http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=12169&prodSeriesId=1814938&prodNameId=1825342&swEnvOID=2025&swLang=8&mode=2&taskId=135&swItem=co-39335-1 or you can search www.hp.com for the title.

DO NOT downlaod teh latest udev. The whitepaper is somewhat confusing on this.