Re: availability of SATA vendors

Dells (at least the 1950 and 2950) come with the Perc5, which is
basically just the LSI MegaRAID. The units I have come with a 256MB BBU,
I'm not sure if it's upgradeable, but it looks like a standard DIMM in
there...

I posted some dd and bonnie++ benchmarks of a 6-disk setup a while back
on a 2950, so you might search the archive for those numbers if you're
interested- you should be able to get the same or better from a
similarly equipped LSI setup. I don't recall if I posted pgbench
numbers, but I can if that's of interest.

Dell's probably not the best performance you can get for the money, and
if you're not running a supported Linux distro, you might have to do a
little cajoling to get support from Dell (though in my experience, it's
not too difficult to get them to fix failed hw regardless of the OS),
but other than that I haven't had too many issues.

HTH,

Bucky

> -----Original Message-----
> From: pgsql-performance-owner(at)postgresql(dot)org
[mailto:pgsql-performance-
> owner(at)postgresql(dot)org] On Behalf Of Joshua D. Drake
> Sent: Tuesday, November 21, 2006 9:38 PM
> To: Jeff Frost
> Cc: Luke Lonergan; pgsql-performance(at)postgresql(dot)org
> Subject: Re: [PERFORM] availability of SATA vendors
>
>
> > > Don't count out LSI either. They make a great SATA controller
based
> off
> > > their very well respected SCSI controller.
> >
> > Interesting. Does it perform as well as the ARECAs
>
> I don't know if it performs as well as the ARECAs but I can say, I
have
> never had a complaint.
>
> > and how much BBU cache can
> > you put in it?
>
> Yes it support BBU and the max cache depends on the card.
>
> 4 drive model, comes with a static 64 megs
> 8 drive model, comes with a static 128 megs
>
> I don't know if they are expandable but keep.
>
>
> > Oh, does it use the good ole megaraid_mbox driver as well?
> >
>
> Yeah it uses the long standing megaraid, stable as all get out and
fast
> driver :)
>
> Sincerely,
>
> Joshua D. Drake
>
>
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