i heard once the scsi on-board port of a F760 motherboard was some kind of autodetect it could manage both type am i wrong ?

David Dalby wrote:

Hi,

Possibly a bug or reporting difference between DOT 6.4.x and earlier versions. I see a number of pre 6.4.x boxes showing ...

slot 0: SCSI Host Adapter 0b (Qlogic ISP 1040B) Fast/Wide, Differential Firmware Version 4.65 Clock Rate 60MHz. I/O base 0xae00, size 0x100 memory mapped I/O base 0x9beee000, size 0x1000

whilst 6.4.x versions are reporting ....

slot 0: SCSI Host Adapter 0b (Qlogic ISP 1040B, <ONLINE>) Fast/Wide, Single-ended Firmware Version 4.66.00 Clock Rate 60MHz. I/O base 0xaf00, size 0x100 memory mapped I/O base 0x84200000, size 0x1000

Rgds Dave

-----Original Message----- From: Harold White [mailto:harold.white@covaro.com] Sent: Saturday, 6 December 2003 3:51 AM To: toasters@mathworks.com Subject: F760 SCSI, Single-ended or Differential

Greetings,

I just noticed that my F760 displays, what I believe to be, its on-board

external SCSI port as "Fast/Wide, Single-ended"

F760> sysconfig -v NetApp Release 6.4R1: Thu Mar 13 22:59:45 PST 2003 .... slot 0: SCSI Host Adapter 0b (Qlogic ISP 1040B, <ONLINE>) Fast/Wide, Single-ended Firmware Version 4.66.00 Clock Rate 60MHz. 4: Tape: Quantum DLT7000 245F 5: Tape: Quantum DLT7000 245F .....

I am/was under the impression that it was a Fast/Wide Differential (on-board) SCSI controller.

I have 2 DLT7000 drives connected to the Filer ... and they are absolutely differential (2 drives from a Sun L1000).

My Veritas Datacenter software keeps down'ing one of my drives and I have just ignored it due to time constraints plus the fact that I had/have one good drive still working.

But now that I am trying to troubleshoot the problem, I do not know if the problem is that I have been lucky that a "Single-ended" filer controller has been providing me good backups to my differential (one) tape drive? (Is that even supposed to work at all?)

Can anyone confirm that the output (sysconfig -v) of a F760 "Single-ended" is correct or incorrect? That is, is the on-board external SCSI port a differential or single-ended SCSI port and the "sysconfig -v" message is right or wrong?

Regards, Harold White Covaro Networks

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