Re: ASM administrative guidelines

From: Jeffery Thomas <>
Date: Wed, 13 Feb 2008 08:25:38 -0500
Message-ID: <>

I received a number of replies in private, and the consensus was just two disk groups per cluster. Are there some inherent reasons for having only two disk groups, other than for administrative simplicity? Are there issues with having a large number of disk groups? For example, we may be looking at EMC Snapview to perform our backups on a cluster that will have multiple databases. Accordingly, we would have to segregate each database so that each has its own set of disk groups, a minimum of 3 per database: data, flash, and online redo logs.


On Feb 7, 2008 10:45 AM, Jeffery Thomas <> wrote:

> We are looking at migrating to 10gR2 RAC/ASM from 9i RAC/VERITAS. I've
> read various papers and
> purchased the Oracle ASM book from Oracle Press and have researched this
> stuff, but from a practical
> level, I was wondering what kind of admin guidelines that those of you in
> more mature ASM shops may
> have developed, or perhaps any paradigm shifts that you've made as a
> result of working with ASM.
> For example, have you changed your standards as per multiplexing control
> files and redo logs? Do you use
> OMF or have you devised any sort of naming scheme with respect to ASM file
> aliases? If you were to redo
> your ASM install, would you change anything on how you configured it or
> are administering it?
> Thanks,
> Jeff

Received on Wed Feb 13 2008 - 07:25:38 CST

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