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тАО01-20-2010 05:39 AM
тАО01-20-2010 05:39 AM
11.23 + SGeRac 11.18 + asm + 10g + multiple instances
I have a question, if anyone has done this before , and how you have done it.
We are runing a two rac service guard cluster, with one package(on instance database).
Now we wan't to run 3 db instances. So the problem is if only one ASM instance is supported in rac enviroments, how can I make separate packages for each DB instance.
My solution is:
1 package for the oracle clusterware(CRS,ASM)
1 package for each DB instance I have
And then set a dependency between the DB packages and the clusterware package.
I have read this doc, that suggests more or less the same:
http://www.docs.hp.com/en/8987/Use-of-SGeRAC.pdf
any of you have done something similar?, any ideas?
Thnx!
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тАО01-20-2010 07:55 AM
тАО01-20-2010 07:55 AM
Re: 11.23 + SGeRac 11.18 + asm + 10g + multiple instances
I've not done anything similar. Tried to stay away from ASM because it adds complexity.
I think however your plan is good and should be tried in a lab.
SEP
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тАО01-20-2010 11:35 PM
тАО01-20-2010 11:35 PM
Re: 11.23 + SGeRac 11.18 + asm + 10g + multiple instances
I prefer the old .dbf file style(or raw), and leave the storage part to people that know how its done.
But ASM (for me) is a single point of failure black box.
But ASM is what our DB admins are using, so it must have something good :?.
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тАО01-27-2010 10:00 AM
тАО01-27-2010 10:00 AM
Re: 11.23 + SGeRac 11.18 + asm + 10g + multiple instances
1. CFS file systems mount each FS as a package
2. CFS FS's are active-active on both nodes, in other words, both servers have read/write capability so that the Database runs and instance for the db on each node, but there's only really ONE db. GREAT for HA, as you're able to independently bring down a node, but the DB stays up.
3. CFS FS's are above ground. They look just like any other standard LVM/vxfs mount point, BUT they must be created and managed using Veritas tools.
I could go on, but FYI, I did a presentation at the '08 Tech forum on this topic, so I believe I know something 'bout this one :) and can share more if needed.
RCP
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тАО01-27-2010 10:02 AM
тАО01-27-2010 10:02 AM
Re: 11.23 + SGeRac 11.18 + asm + 10g + multiple instances
RCP
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тАО01-28-2010 10:51 AM
тАО01-28-2010 10:51 AM
Re: 11.23 + SGeRac 11.18 + asm + 10g + multiple instances
We have CFS working on two tibco EMS active-active clusters, and as you say it works just fine.
If you nice insight docs or presentantions on cfs it would be great if you shared them.
The docs about CFS on docs.hp.com are ok, but it's allways nice to geat some extra info
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тАО02-08-2010 08:50 AM
тАО02-08-2010 08:50 AM
Re: 11.23 + SGeRac 11.18 + asm + 10g + multiple instances
-RCP