SAN Migration on HP-IVM

[karthikbalu]

Guys,

I would like to know the procedure for SAN migration on HP-IVM. 

I have atleast 5 vm's created on 5 different Storage luns.

Please let me know how those VM's can be migrated with the newly assigned luns.

Thanks & Regards,

Karthik Balu.

[Dave Olker · Accepted solution]

Are the VMs using the older storage as their boot disks?  In other words, are you trying to migrate the VM's boot disks from older storage to newer storage?  If that is the case, my suggestion would be to present a LUN from the new SAN to each VM and then use DRD to clone the boot disk to the new LUN.  Once that's done, use setboot to change the primary boot path to the newly cloned LUN and reboot the VM.  Once the VM boots to the new LUN you unpresent the old LUN and you're done.

Dave

[Patrick Wallek]

>>Once that's done, use setboot to change the primary boot path to the newly cloned LUN and reboot the VM.

Or just use 'drd activate' and it will reset the primary boot path appropritately.  Then you can reboot.

[Dave Olker]

I did not know that.  Oh DRD, is there nothing you can't do?

[karthikbalu]

Thank you so much Dave & Patrick. Will follow this option..!

[karthikbalu]

Dave & Patrick,..if the san copy was done and assigned to the server? then i just need to add the disk on vm and make it as boot disk?

or suppose any other action requires?

[Dave Olker]

To review, you have 5 VMs that you want to have boot from a new SAN.  Let's assume all 5 VMs are running on a single VM Host or VSP.  

1) Create 5 new LUNs on new SAN

2) Present all 5 LUNs to the VSP

3) Assign one new LUN to each of the 5 VMs using hpvmmodify

4) Inside each VM use ioscan to identify the newly added LUNs

5) Inside each VM use DRD to clone the boot disk and activate the new LUN as the new boot target

6) Reboot VMs using new SAN storage

What you choose to do with the legacy boot disks is up to you.

Dave