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Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

 
Hoang Chi Cong_1
Honored Contributor

LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

Hi experts,
Has anyone faced with this situation? Please advise.

I have 01*700GB Vdisk in an OLD Storage (EVA400).
Now I have to migrate all data from the OLD Storage to a new Storage (EVA8100).

Can I migrate from 01*700GB (EVA4000) to 02*400GB (EVA8100)?

Any help much appreciate!
Looking for a special chance.......
6 REPLIES 6
Sandeep_Chaudhary
Trusted Contributor

Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

Ya it is possible.

use PVMOVE commend and move PV's.
Sandeep_Chaudhary
Trusted Contributor

Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

Move physical extents from /dev/dsk/c1t0d0 to /dev/dsk/c2t0d0 and
/dev/dsk/c3t0d0:

pvmove /dev/dsk/c1t0d0 /dev/dsk/c2t0d0 /dev/dsk/c3t0d0
Hoang Chi Cong_1
Honored Contributor

Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

Thanks for your respond.
But I do not want to use pvmove!
Do you have another solution?
Looking for a special chance.......
Jeeshan
Honored Contributor

Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

then you can go through the LUN migration procedure in storage level i mean in EVA not in OS level.
a warrior never quits
Sandeep_Chaudhary
Trusted Contributor

Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

Ashan is right. U have to use storage tools.
Deepak Kr
Respected Contributor

Re: LVM mirroring using different LUN size-from small Vdisk to bigger Vdisk

Hoang,

Can you tell how is your 01*700GB (EVA4000)disk is being used now!!

Also whether 02*400GB (EVA8100) disks will be in same configuration like your 01*700GB (EVA4000)disk is?

Taking backup and restoring is another option.

"There is always some scope for improvement"