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Conference mvblab::alphaserver_4100

Title:	AlphaServer 4100

Moderator:	MOVMON::DAVISS

Created:	Tue Apr 16 1996
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	648
Total number of notes:	3158

438.0. "KZPAA TKZ62 Slows System Response" by FIXSR2::RUGGIERO (Mike Ruggiero) Mon Jan 27 1997 16:25

    The customer added the following option to his 4100:

    KZPAA----Empty BA356 in the CPU CAB with a DWZZB Rev B1 ----TKZ62. 
    The DWZZB was installed to avoid any cable length issues. The cable
    from the DWZZB to the TKZ62 is 3 Meters.

    The PCI BUS has 5 KZPAA, a Dual FDDI controller, Thomas Conrad Token
    Ring Card and a VGA interface.

    He is running DIGITAL UNIX Ver 3.2G. When he does a backup to this
    tape the system response get very sluggish. There are no errors in
    DECEVENT that point any error conditions.

    The customer had a Alpha 2100 that used a single ended SCSI controller
    to a single ended TKZ62 running DIGITAL UNIX ver 3.2G and he did
    not see any response problem.

    Is this configuration violating any hardware restrictions?
    Are there any parameters or software changes needed?

T.R	Title	User	Date	Lines
438.1	Use a KZPSA instead	MOVMON::DAVIS	`Tue Jan 28 1997 10:10`	4
	The KZPAA is a single-ended device. It is not compatible with the DWZZB. Todd
438.2	Shoot the KZPAAs	WONDER::WILLARD	`Wed Jan 29 1997 18:14`	4
	Those KZPAAs require a lot of CPU-based hand-holding. Replace them with KZPSAs. Cheers, Bob