Multi-instances cluster and ASM max lun numbers
- From: Stefano Cislaghi <s.cislaghi@xxxxxxxxx>
- To: Oracle L <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 30 Jul 2012 15:30:33 +0200
Hi all,
I have an interesting situation: a three nodes cluster (using oracle
grid infrastructure) hosting about 20 instances.
The cluster is acting as a normal failover cluster, each instance has
3 diskgroups (DATA, FRA, REDO) plus a lun for binary.
This configuration is not usually described afaik even if it is
working. An interesting thing is that ASM has a limit about max lun
mounted: 64.
With this configuration there is a huge limit, in case of a node
failure both nodes might not be able to support everything. Also we
have seen that when ASM have to mount 10 luns in the same time it is
very slow.
So, I am curious to understand how you would tackle with this problem
and if you might use a different approach.
Contraints:
- RAC is not available due to money limits and too many applications
not certified
- Instances cannot be aggregated
So any feedback is appreciated.
Thanks
Stefano
--
http://www.stefanocislaghi.eu
The SQLServerAgent service depends on the MSSQLServer service, which
has failed due to the following error: The operation completed
successfully.
--
//www.freelists.org/webpage/oracle-l
Other related posts:
