RE: ASM of any significant value when switching to Direct NFS / NetApp / non-RAC?

From: Herring Dave - dherri <>
Date: Thu, 9 Aug 2012 22:27:13 +0000
Message-ID: <>

I think another point for skipping ASM when not necessary is the chance of skipping out on bugs. ASM is great and works fine most of the time, but in each release we've hit a few bugs that have made for some interesting (and long) nights.

My favorite "adjustment" to the prayer Tim listed: God grant me the serenity to accept the people I cannot change; courage to change the people I can; and wisdom to know it's me.

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-----Original Message-----

From: [] On Behalf Of Tim Gorman Sent: Thursday, August 09, 2012 10:44 AM To:
Subject: Re: ASM of any significant value when switching to Direct NFS / NetApp / non-RAC?


I believe that Nuno (and others) were commenting on the human obstacles, not the technical feasibility.

Having a storage/SysAdmin team doling out file-system mount-points for one group of database environments and LUNs for the other group can be challenging from the perspective of expectations, boundaries, and politics. One of the things that ASM does (and continues to do) is disrupt the decades-old relationship between DBA and storage/SysAdmin teams, and while some organizations will absorb that without any indigestion, others won't.

One of my current customers is an AIX shop where one of the SysAdmins is a forceful personality, and as a result their RAC environment use GPFS not ASM, despite the additional licensing costs. And that is right for them, right now. Over time, I believe Linux will likely replace AIX, people will move on, and ASM will become part of the mix. As well as Cloudera or MongoDB.

The Serenity Prayer is relevant: God grant me the serenity to accept the things I cannot change; courage to change the things I can; and wisdom to know the difference.

And I like to append the clause: "in time". It provides so many additional nuances to the already nuanced prayer. Rather like adding the phrase "between the sheets" to a fortune cookie's fortune... :-)

Only a few obstacles are technical; most are political.

Hope this helps...


Tim Gorman

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-- Received on Thu Aug 09 2012 - 17:27:13 CDT

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