thought you would be interested ...

-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On
Behalf Of Stan Sieler
Sent: Friday, December 01, 2000 4:03 PM
To: [log in to unmask]
Subject: Re: Disk capacity on an 979KS


Re:

> The Fast Wide SCSI limit is 15 devices per channel,
> although this is not recommended for performance reasons.
> I don't think HP currently supports drives larger than
> the 36GB ones, which would limit you to 540GB per controller.

MPE/iX 6.5 supports 72 GB drives, which (at 15 per channel) would
be 1 TB per controller!

That question about backing it up just got harder :)

> You can add several I/O expanders, with their own card cage,
> and an additional HP-PB expansion, etc. (The HP-PB only goes
> to 32mb a second, so several SCSI channels per PB can keep
> it mighty busy.)

<plug> DiskPerf, from Allegro, could be used to test the
I/O capacity of a system.
</plug>
Stan Sieler                                           [log in to unmask]
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler