Craig,
Are you seeing much improvement in the larger VA7xxx controller cache?
I've been wondering if it's worth the extra cost considering how well MPE
is able to cache data.
David N. Lukenbill
Terry,
A simple solution would be to use a VA7100, with a very nice 2GB of cache.
The problem is that the only supported solution is to use the A5814A fiber
SCSI
router. Which is a 1 fiber to 1 FW/SCSI conversion, for about 7k. The
problem
is you probably want 8 of them. If you want an offically "unsupported" but
working solution, send me an e-mail.
An XP256 is a great solution, just keep the spindle count high. I have
also
seen really good performance with the HVD10's.
-Craig
--- "Simpkins, Terry" <[log in to unmask]> wrote:
> I was preparing to ask a very similar question, so I will.
>
> We're not planning to upgrade the box, because we don't see significant
CPU
> utilization,
> but we have been seeing significant queue lengths via SOS (Lund).
>
> Our current configuration is:
>
> 959/200 (maximum memory installed)
> system volume set (model 10 array w/ 6 disks on F/W)
> 3 user volume sets
> - total of 10 HASS enclosures
> - 32 2.0Gb disks (16 mirrored to 16) on 4 F/W channels
> - 48 4.3Gd disks (24 mirrored to 24) on 4 F/W channels
>
> We intentionally stayed with smaller drives to keep the number of
spindles
> up.
> The production data is all on the 32 2Gb drives with 8 drives on each F/W
> channel.
> The 4.3Gb drives have 12 drives per F/W channel, but those are test and
> backup sets.
>
> What would others recommend to improve disk throughput?
> Should we replace the F/W with Fiber?
> Should we replace the HASS units with Arrays and eliminate the mirroring?
>
> Any other ideas?
>
> *****************************
> Terry W. Simpkins
> Director - ISIT
> Measurement Specialties
> 757-766-4278
> [log in to unmask]
> *****************************
>
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