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Oracle 10g RAC - two nodes - change SAN storage - only one node up

-0001-11-30   Views:3

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Hi all, We're using Oracle 10g with Linux Red Hat. We want to migrate to another SAN storage. The basic steps are: node 1: 1. presents the volume disk and create partition 2. asmlib create disk newvolume 3. alter diskgroup oradata add disk newdisk 4.

Hi all,
We're using Oracle 10g with Linux Red Hat.
We want to migrate to another SAN storage.
The basic steps are:
node 1:
1. presents the volume disk and create partition
2. asmlib create disk newvolume
3. alter diskgroup oradata add disk newdisk
4. alter diskgroup oradata drop disk OLDDISKOTHERSAN
But THE NODE 2 DOWN.
we want start the NODE 2 only after ALL operations in node 1 finish.
What's you opinion? Any impact?
Can I execute the oracleasm scandisks on node 2 after?
thank you very much!!!!

The replay answer
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modify the commands just slightly...
1. presents the volume disk node1 AND node2
2. create partition node1 [if necessary?? ]
3. asmlib create disk newvolume [node1] ## I am not a fan of and have never had to use ASMlib - however, apparently you do...
4. asmlib scandisk... [node2]
[on one of the nodes]
alter diskgroup oradata add disk1 newdisk rebalance power 0
alter diskgroup oradata add disk2 newdisk rebalance power 0
alter diskgroup oradata add disk3 newdisk rebalance power 0
alter diskgroup oradata add disk{n} newdisk rebalance power 0
alter diskgroup oradata drop disk1 OLDDISKOTHERSAN rebalance power 0
alter diskgroup oradata drop disk2 OLDDISKOTHERSAN rebalance power 0
alter diskgroup oradata drop disk3 OLDDISKOTHERSAN rebalance power 0
alter diskgroup oradata drop disk{n} OLDDISKOTHERSAN rebalance power 0
alter diskgroup oradata rebalance power {n}
You can actually do this with BOTH nodes ONLINE. I was involved in moving 250TB from one storage vendor to another - all online - no downtime, no outage.
And before you actually do this and break something - TEST it first!!!

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