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Conference ssdevo::hsz40_product

Title:	HSZ40 Product Conference

Moderator:	SSDEVO::EDMONDS

Created:	Mon Apr 11 1994
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	902
Total number of notes:	3319

780.0. "HSZ40 DUAL-REDUNDANT CONFIG WITH KZPSA,VMS, SW300" by BEJVC::HELENZHOU () Tue Feb 25 1997 20:05

Dear Sir,

I need your help urgently in presales support:

HSZ40 dual-redundant configuration, within SW300, connected with KZPSA, 
OpenVMS Alpha V7.1 forms OpenVMS SCSI CLUSTER:

.  It's said that "you must connect the dual-redundant HSZ40 to the SAME HOST
   SCSI BUS" ====> Does it mean can only connect to ONE KZPSA on the host?

.  If the customer want TWO KZPSA on same host for redundant, with UP TO TWO
   HSZ40 in SW300===> then the two HSZ40 can NOT be configured in Dual-Redundant
   mode. Is that correct? in this case, WHETHER A BN21L cable is needed 
   connect the two HSZ40 together? or just plug into the slots in SW300?

I'm looking forward to your reply! Thanks ahead!

Reg.
Helen

T.R Title User Personal
Name Date Lines

780.1 KERNEL::LOANE Comfortably numb!! Tue Feb 25 1997 23:17 14

T.R	Title	User	Personal Name	Date	Lines
780.1		KERNEL::LOANE	Comfortably numb!!	`Tue Feb 25 1997 23:17`	14
	>. It's said that "you must connect the dual-redundant HSZ40 to the SAME HOST > SCSI BUS" ====> Does it mean can only connect to ONE KZPSA on the host? Yes; only one adapter per host to an HSZ Controller shelf. Having one KZPSA per controller to a dual-redundant controller shelf is not yet supported (by the O/S). >. If the customer want TWO KZPSA on same host for redundant, with UP TO TWO > HSZ40 in SW300===> then the two HSZ40 can NOT be configured in Dual-Redundant > mode. Is that correct? in this case, WHETHER A BN21L cable is needed > connect the two HSZ40 together? or just plug into the slots in SW300? I think the rule is that 2 controllers residing in the same shelf MUST be in dual redundant mode.

>.  It's said that "you must connect the dual-redundant HSZ40 to the SAME HOST
>   SCSI BUS" ====> Does it mean can only connect to ONE KZPSA on the host?

    Yes;  only  one  adapter per host to an HSZ Controller shelf. Having 
    one KZPSA per controller to a  dual-redundant  controller  shelf  is 
    not yet supported (by the O/S).

>.  If the customer want TWO KZPSA on same host for redundant, with UP TO TWO
>   HSZ40 in SW300===> then the two HSZ40 can NOT be configured in Dual-Redundant
>   mode. Is that correct? in this case, WHETHER A BN21L cable is needed 
>   connect the two HSZ40 together? or just plug into the slots in SW300?

    I  think  the  rule is that 2 controllers residing in the same shelf 
    MUST be in dual redundant mode.