ERobert
asked on
EMC SAN
I have a Clarion CX-400 and I wanted to know if there is a way to transfer data from one LUN to another one at the LUN layer. I know that restoring backups would do the job but it takes a while. There must be another way to do that. I've seen some command about INFOMOVER.
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ERobert,
The fact that you've spanned a virtual volume (ie meta volume) across 2 physical luns, means that neither SNAcopy nor snapClone will work. Only windows has visibility of the spanned meta data needed to construct the underlying disk structure (ie: NTFS structure and disk tracks).
Thus they cannot be consolidated into a single new lun.
However you could create 2 new luns of 40GB and 60GB and use snapclone to mirror these up, then present them to a different server. This would allow you to recreate the 100GB meta.
Hope this helps
Da Proff
The fact that you've spanned a virtual volume (ie meta volume) across 2 physical luns, means that neither SNAcopy nor snapClone will work. Only windows has visibility of the spanned meta data needed to construct the underlying disk structure (ie: NTFS structure and disk tracks).
Thus they cannot be consolidated into a single new lun.
However you could create 2 new luns of 40GB and 60GB and use snapclone to mirror these up, then present them to a different server. This would allow you to recreate the 100GB meta.
Hope this helps
Da Proff
ASKER
Thanks,
Do you have a procedure on how to use SANCopy to copy a LUN to another LUN?
Do you have a procedure on how to use SANCopy to copy a LUN to another LUN?
SanCopy is managed through the Navisphere console. You will need to install the ndu package for it aswell as the Gui ndu package for sancopy. I think they are included on the CD that has Snapview on it. Yoy can use it without a license (for evaluation only), but longer use requires you to pay for it.
If you don't have it ...contact your EMC rep and ask for a copy of it to evaluate. It will come with docs. Make sure you give him a list of the currently installed software versions (can be viewed through properties of the Clariion array), as the versions are specific and not always backward compatible.
EMC powerlink has loads of docs on SANcopy and Snapview: https://powerlink.emc.com
You will need to register if you haven't already.
Regards
Da Proff
If you don't have it ...contact your EMC rep and ask for a copy of it to evaluate. It will come with docs. Make sure you give him a list of the currently installed software versions (can be viewed through properties of the Clariion array), as the versions are specific and not always backward compatible.
EMC powerlink has loads of docs on SANcopy and Snapview: https://powerlink.emc.com
You will need to register if you haven't already.
Regards
Da Proff
ASKER
Thank you for all the information. You earned your points ; ) I've already registered on the powerlink website but experience is something they can't provide like you just did. Actually I've tried Cloning, Snapshot sessions and Expand functionnality. Is there any other thing you might provide as helpfull ?
Thanks a million times
Thanks a million times
Depends what country your in...
I do Clariion, Symmetix and Celerra consultation for a job :)
If EMC Can't or won't give you a copy of SANcopy, I might be able to find one. However I would be hesitant about doing this as It could invalidate your Support Contract. Tools that you might find useful for data migration:
1) UNISON (just google for "unison file sync"), will incremental sync up windows, linux and Unix filesystems. Useful for Lun consolidation.
2) Robocopy. Windows only incremental File sync tool. Available in the XP resource kit.
Have fun
Da Proff
I do Clariion, Symmetix and Celerra consultation for a job :)
If EMC Can't or won't give you a copy of SANcopy, I might be able to find one. However I would be hesitant about doing this as It could invalidate your Support Contract. Tools that you might find useful for data migration:
1) UNISON (just google for "unison file sync"), will incremental sync up windows, linux and Unix filesystems. Useful for Lun consolidation.
2) Robocopy. Windows only incremental File sync tool. Available in the XP resource kit.
Have fun
Da Proff
ASKER