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Need to do svmotion for vm having RDM

Posted on 2014-01-15
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Last Modified: 2014-02-13
Please advice,if we can do Vmotion and SVmotion without any downtime ?

 And any specific steps we have to follow to do svmotion for my vm running on esxi 5.1, (but dont have upgraded vmtool and h/w version now,recetly host migrated to 5.1)

Please advice best prectice to do that
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Question by:patron
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12 Comments
 
LVL 122
ID: 39782453
Right Click the VM, and Click Migrate, follow the wizard and select the new datastore.

Make sure you have no snapshots on the VMs, before Migration.
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LVL 1

Author Comment

by:patron
ID: 39782481
it will automatically do svmotion for RDM as well ?

my concern is..will there be any issue for RDM attached to my vm ?
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LVL 122

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 375 total points
ID: 39782495
The RDM is attached to the VM.

see here

Migrating virtual machines with Raw Device Mappings (RDMs)
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Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

 
LVL 17

Expert Comment

by:James H
ID: 39782594
Is the RDM physical or virtual?
There is a caveat for physical RDM.
Only pointer will transfer over, NO data.
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LVL 1

Author Comment

by:patron
ID: 39785155
hmm, thats the concern here,i need to move RDM form one filer to another..not pointer only the pointer

and here in my case it is virtual RDM

please advcie..as i have issue with my existing lun, so need to move another filer

please advcie best way with min downtime if any ?
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LVL 1

Author Comment

by:patron
ID: 39785331
Please advice,how to move data using svmotion for RDM virtual/physical
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LVL 17

Assisted Solution

by:James H
James H earned 1125 total points
ID: 39786234
0
 
LVL 1

Author Comment

by:patron
ID: 39787985
Thanks,already checked that doc, but  still not sure if this can be done without any outage ?
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LVL 17

Assisted Solution

by:James H
James H earned 1125 total points
ID: 39788885
Yes, as long as they are virtual RDM's this can be done "hot".
You will need to do an advanced vMotion to move VM and RDM.
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LVL 1

Author Comment

by:patron
ID: 39806992
ok, would be good if there is any any best practice doc to follow in that case
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LVL 17

Accepted Solution

by:
James H earned 1125 total points
ID: 39807003
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LVL 1

Author Closing Comment

by:patron
ID: 39858181
Thanks
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