RE: ASM

I have plenty of experience with Cluster, both active/passive and Real Application Cluster (specially with TAF). I began my worklife with Oracle, and I am used to it's products and how they work, and therefore my comments are heavyly biased.

However, it is undeniable that Sun's Cluster Filesystem does not work with RAC. (with A/P clusters it works fine). ASM does not lack friendlyness any more than Veritas does. In fact, if you use the intended tool to administer it (that is Enterprise Manager) it's highly user friendly and simple to manage.

About it's versatility, you can even define what type of stripping you want to use... so I'd say it's rather versatile. With the obvious exception that it ONLY supports Oracle Database Files.

regards

Guillermo Alan Bort
DBA / DBA Main Team

EDS, an HP company

From: Charles Schultz [mailto:sacrophyte_at_gmail.com] Sent: Thursday, October 16, 2008 12:59 PM To: Bort, Guillermo
Cc: niall.litchfield_at_gmail.com; jkstill_at_gmail.com; dannorris_at_dannorris.com; VIVEK_SHARMA_at_infosys.com; Greg Rahn; ORACLE-L Subject: Re: ASM

On the flip side, we like our SA's. However, we are lacking in clustered experience (in any group). We have read whitepapers from both Sun and Oracle saying that their cluster stack is better than the other. What about real world experiences? Has anyone used both and have a somewhat objective comparison?

Oracle certainly picked a controversial direction with ASM. =) I still do not understand how Oracle has provided a really cool with ASM that is horribly lacking in friendliness and versatility.

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