Tony,

I don't think the Mod 20 can chain the controllers, but more importantly, you
wouldn't WANT to chain them.

I recommend a configuration with no more than 16 discs, or a total of 4 (*2
mirrored) drives per controller.  That way each SP will support a total of 8
drives which is a bit high for an 8mbit per second card.

SCSI card are cheap, approx 200$ or less (but if room is the issue...)

Regards,

-Craig

--- "Luna, Tony" <[log in to unmask]> wrote:
> Once again the  topic of the MODEL 20 DISK ARRAY, connecting to a 939KS
> server running 7.0 PP2 OS MPEX. The server our development box has a 2 Jamica
> enclosers each connected to a SCSI adapter HP-PB A28696-60001.
>
> The Mod 20 has 2 SP620 Processors A & B with cables.
>
> Question? Can the Mod 20 be connected by way of daisy chain?
> Must the Mod 20 be connected to it's own card with one cable connection? If
> so, How does this effect the performance?
>
> Any input to the "How to Connect Mod 20 to a 939KS" would be appreciated.
>
> Thank You All.
>
> Tony Luna
> Systems Engineer
> Information Technology Dept
> 201 Eight Avenue South
> Nashville, Tennessee 37203
> Phone: 615-749-6476
>
> * To join/leave the list, search archives, change list settings, *
> * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *


__________________________________
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
http://sbc.yahoo.com

* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *