boot lun migration for redhat 6 from one SAN to another

Latest response

If anyone have done this recentley .I m looking for the steps to do this .We do not have a test servers that we can test the steps .We boot the server from SAN and use multipath s well .

AM
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AM Newbie 17 points
22 March 2016 10:52 PM

If anyone have done this recently .I’m looking for the steps to do this .We do not have a test servers that we can test the steps .We boot the server from SAN and use multipath as well.

Jamie Bainbridge's picture Red Hat Guru 7252 points
23 March 2016 2:41 AM

Migrating boot-from-SAN from one SAN to another is not an action which Red Hat support or recommend.

Our supported method is to reinstall the OS on the new SAN using the regular RHEL installer.

IG Active Contributor 142 points
23 March 2016 9:15 PM

AN organisation I worked for did it and moved boot LUN from HP EVA to Hitachi. Not a single glitch. Of course, reboot was required.

Basically, present new LUN, add mirror, set up partitioning on new LUN the same way as old LUN, copy data to new /boot, change /etc/fstab (replace uuid by running ‘blkid NEWLUN’ after running mkfs -t ext4 ..), grub-install --recheck NEWLUN, and reboot :)

This was done a year ago and no issues.

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