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Pool migraton clarification
Dear All,
could somebody tell me what is exactly the pool migration, during a Centera upgrade (installing additional nodes).
In the procedure there are a few steps.
One: show pool migration
Two: In CV Check PoolMigration Space
Three: Start PoolMigration
What this process does?
How is it related to using pools?
If there is a Centera 4.1.1, already using profiles and pools, and additional nodes are installed, is it really necessary?
Thank You!
Krisztian
Satish_Kutty
216 Posts
1
August 9th, 2012 05:00
Hi Krisztian,
I believe that Pool Migration need not be run on the latest Centera Star versions during upgrade though it was required earlier for Centera Star version 3.1 or earlier.
Regards
Satish.N.Kutty
EMCDennis
124 Posts
1
August 9th, 2012 07:00
Centera allow pool mapping where clips that were written with a profile but into the default pool, can be mapped to another pool. The Pool migration task will associate these ‘logically’ to the pool within the internal databases.
Outside from pool mapping, the pool migration task modifies the internal databases to add pool information. It may or may not be required. You will know if you try to create a pool and it says that this task must be run first.
Dennis
Satish_Kutty
216 Posts
0
August 10th, 2012 09:00
Hi Krisztian,
I believe that there is no option to start the Pool Migration Process in Centera Star version 4.1.x.....There is only an option to check the Pool Migration Status. We can also view the Migration activity on Centera Viewer by going to Tools --> Field --> Cluster Usage --> Migration Activity.
Regards
Satish.N.Kutty
EMCDennis
124 Posts
0
August 10th, 2012 09:00
CLI command “migrate poolmapping start” will start the process
Satish_Kutty
216 Posts
0
August 10th, 2012 09:00
Hi Dennis,
Thanks for the update...
Satish.N.Kutty
Satish_Kutty
216 Posts
0
August 15th, 2012 03:00
Hi Krisztian,
Were you able to run the upgrade successfully?
Regards
Satish.N.Kutty