Re: Best fs for Oracle RAC

On Sep 24, 11:24 am, hjr.pyth..._at_gmail.com wrote:
> On Sep 25, 3:16 am, Steve Howard <stevedhow..._at_gmail.com> wrote:
>
> > I agree with this. To provide an actual real-life specific example,
> > we switched from IBM FAStT storage to EMC by adding the EMC disks to
> > the existing diskgroup (originally with only FAStT storage). Once the
> > rebalance to include the EMC disks had completed, we dropped the FAStT
> > disks from the diskgroup. Clean and easy.
>
> > Regards,
>
> > Steve
>
> As a fan of ASM, it's always nice to see the good stories. But what
> you've described is not a "migration" in my book. If I had to pick a
> word, it's a "transition" from one storage vendor to another. No less
> a powerful demonstration of ASM's capabilities for all that, of
> course... but not (I suspect) what the OP and Bob were originally
> talking about.

I have no opinion about ASM. The original post specified hp-ux and linux, and those two platforms have some quite different configuration issues with respect to raw - for that matter, even different versions of hp-ux are different. So for Bob to say "Raw is the simplest and the most reliable option and if you are confident about performance, NFS is another choice. " to me shows that he really, really doesn't know what he is talking about.

A quick google finds http://docs.hp.com/en/8988/ASM-SGeRAC-tk.pdf http://download-west.oracle.com/docs/html/B10812_06/appendix_b.htm http://www.oracle.com/technology/deploy/performance/pdf/TWP_Oracle_HP_files.pdf etc.

Some of Bob's other posts have made some here think if there is any ambiguity to Bob's post, it should be skewed against him.

jg

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