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Conference 7.286::digital

Title:	The Digital way of working

Moderator:	QUARK::LIONELON

Created:	Fri Feb 14 1986
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	5321
Total number of notes:	139771

5228.0. "Wide/Narrow SCSI? Confused!!" by ODIXIE::GALVEZ () Tue Apr 08 1997 11:51

    I have a question on upgrading a HSD30 to a HSZ40.  Are the backplanes
    used on both devices, the same? If so,  why are we limiting the 16 bit
    bus structure of the HSZ40 to the disk?  If I understand this right,
    you can only use 8 bit  from the HSZ40 to the personality module on the
    BA356.  Can anyone shed any light on this? Also,  is there a 50 pin to
    68 pin SCSI cable that can be used from the HSZ40 (which is narrow SCSI
    50 pin) to a wide peronality module ( which is wide SCSI 68 pin). 
    
    Thanks,
    
    
    Art Galvez AKA ( Who! Me?)

T.R	Title	User	Personal Name	Date	Lines
5228.1	Try HSD30_PRODUCT or HSZ40_PRODUCT notes conferences...	PEAKS::MERTZ		`Tue Apr 08 1997 11:59`	4
	Try the HSD30 & HSZ40 notes conferences (SSDEVO::HSD30_PRODUCT and SSDEVO::HSZ40_PRODUCT) -John
5228.2		49201::MSTEINER		`Wed Apr 09 1997 09:46`	5
	My understanding is that on the BA356, you'll need the 8 bit peronality module (ba35x-mg). So, between the HSZ and the BA356, it's the standard BN21H-01 that is required. Michel.
5228.3		49201::MSTEINER		`Wed Apr 09 1997 09:53`	10
	Re .2: 49201::MSTEINER ^^^^^ Hehe... Looks like I'm not the only system manager within Digital who has problems with name translation in DECnet OSI, DNS, etc... (HUMANE:: also has the problem) :-) Michel.
5228.4	Answer	SSDEVO::INDERMUEHLE	Stonehenge Alignment Service	`Fri Apr 11 1997 12:29`	13
	Hi Art, The quick answer to your question is: None of the HSx 30 or 40 controllers will address wide devices in wide mode. Therefore, there is no need for a wide SCSI cable. Yes the HSD30 and HSZ40 use the same backplane within the BA350-Mx shelf. But, only the 50 pin HD cable can be used. Wide devices will work when attached to the device SCSI buses, but in narrow mode only. Cheers, John I