Re: Hardware: HP StorageWorks MSA 1500

Hmmm.  We use an MSA 1000 with Fibre Channel interconnects.  No real
complaints, although I was a little bit disappointed by the RAID
controller's battery-backed write cache performance; tiny random writes
are only about 3 times as fast with write caching enabled as with it
disabled, I had (perhaps naively) hoped for more.  Sequential scans from
our main DB (on a 5-pair RAID 10 set with 15k RPM drives) get roughly
80MB/sec.

Getting the redundant RAID controllers to fail over correctly on Linux
was a big headache and required working the tech support phone all day
until we finally got to the deep guru who knew the proper undocumented
incantations.

-- Mark Lewis

On Thu, 2006-04-20 at 20:00 +0200, Mikael Carneholm wrote:
> We're going to get one for evaluation next week (equipped with dual
> 2Gbit HBA:s and 2x14 disks, iirc). Anyone with experience from them,
> performance wise?
>
> Regards,
> Mikael
>
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