pSERIES AIX Mapping Lun's question

Rhiaanon44
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Hi Experts. What are the steps/commands to do the following and how long should it take?

The customer has an IBM DS4300 SAN that is attached to an IBM P-series server running AIX 5.3.  He needs to delete and defines some LUNs and map these new LUNs to the P-series server (some LUNs are already mapped to this server). Will Include creating new volume groups, exporting, deleting and recreating. He would like someone who has done this work before since these are production systems.
 
My customer anticipates that this would be no more than a few hours of work at the most, but I would certainly look to you to validate that assumption. Thanks in advance!
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Commented:
When you say " ... needs to delete ... " do you mean that LUNs have to be deleted which are already mapped to AIX and part of a volume group there?
If so, all depends on the size of those LUNs, because you will have to move data around to the remaining LUNs in the VG(s) to free the LUNs which should be deleted, which involves, in turn, that there must be sufficient free space on those remaining LUNs to accomplish this.
You also wrote "... exporting ...". Do you mean exporting application data some way (backup)? In this case all depends again on the amount of data and the speed of your equipment.
On the other hand, creating LUNs on a DS4000, mapping them to AIX and creating new volume groups there is a matter of minutes, not hours.
I think you should give a bit more detail, particularly regarding the two points ("deleting", "exporting") I mentioned above.
wmp

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Commented:
Hi I am waiting on your requested information from customer. Thanks!

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Commented:
Thanks a million!

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