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SAN migration

Waqar Razi
Regular Advisor

SAN migration

We have RHEL 3.6 and power path 4.3.5 to connect to DMX 800. We are migrating SAN from DMX 800 to DMX 950. Can some one please guide us with the best approach and minimum downtime. Step by step solution is highly appreciated.
Steven E. Protter
Exalted Contributor

Re: SAN migration


These SAN's are compatble.

Shut down all apps that use the SAN.

Use SAN utilities to copy the LUNS san to SAN.

Zone the new SAN the sam, and present the LUNS the same way and LUN number.

Shut down old DMX.

Move new DMX in place on the same zoning as the old. Bring it back up.

Restart the RHEL system.

This is a thumbnail guide.

Steven E Protter
Owner of ISN Corporation
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Michal Kapalka (mikap)
Honored Contributor

Re: SAN migration


the procedure that you recieved form Steven is very well, for informational purpose
EMC have a special product for data migration
SAN copy, more on this link :


Viktor Balogh
Honored Contributor

Re: SAN migration

Brocade has also such a tool, called Data Migration Manager.

Unix operates with beer.
Honored Contributor

Re: SAN migration

You could also look about open migrator to migrate live data
Hope it helps
Honored Contributor

Re: SAN migration

I am not sure if those products are free. But you can chose the FS copy method if you can afford a down time.Again depend on the volume of data and the down time you can afford
Viktor Balogh
Honored Contributor

Re: SAN migration

Another idea: If you want to minimize downtime, you could make an additional mirror to the new storage box. This way you can copy the data without downtime. After that, you could remove the other half of the mirror. Not sure if you can do it on Linux though, I dont have experience with Linux on storage...
Unix operates with beer.