[SunHELP] OBP test-all repeats "bus error" over and over

[bran tregare]

I would lay odds that is a HVD device.  to find out, open the case and get 
the part # off the drive, then check the manufacturer's website (drive 
manu, not zzyzx.  I'd almost bet that the onboard scsi is now damaged.

  also, did they power the machine down before attaching the tape drive?

At 12:20 AM 10/25/01 -0500, you wrote:
>Howdy all -
>
>I have a client who attached a Zzyzx DLT 8000 drive to the SCSI port on 
>the back of an Ultra 60.  The Ultra crashed - hard.  They wound up 
>re-installing the OS.  They attached the tape drive to another Ultra 60, 
>which promptly crashed hard as well.  That's when I got called.  I found 
>that now both of the 60's repeat "bus error" over and over when I run 
>"test-all" from the OBP prompt.
>
>The Ultra 60 reference guide says that the SCSI port is plain old 
>Ultra-SCSI.  The Zzyzx web site says that he tape can be ordered "SCSI-2 
>Fast/Wide (LVD/SE or HVD)."  The customer does not know the configuration, 
>but the tape drive has a 68-pin connecter on the back and two SCSI ports - 
>the client has an active terminator on the port not attached to the cable.
>
>So, I have two questions:  First - is the repeating "bus error" as bad as 
>I am afraid it is?  Second - if there is a SCSI type mismatch (i.e. LVD to 
>SE, or HVD to LVD), would that have damaged the Ultras?  I thought that 
>one of the goals of SCSI was that newer drives would work on older 
>controllers, and vice-versa.  My understanding is that HVD and LVD are not 
>compatible, but I didn't think that this could actually damage the SCSI 
>controller or drive - am I wrong?
>
>Thanks in advance!
>Thomas