[Info-vax] Alpha SCSI disks won't mount on integrity

[Robert A. Brooks]

On 12/23/2021 10:33 AM, Rich Jordan wrote:

> Rob,
>       going to have to wait for more details; dev is  using the itanium for some emergency test builds for a year-end problem they just found.  I'll try to get error log info later but the reported error looks just like trying to mount a tape that is not loaded:
> 
> $ MOUNT/SYSTEM   ALTI64$DKB500: TALPHASYS
> %MOUNT-I-OPRQST, medium is offline
> %MOUNT-I-OPRQST, Please mount volume TALPHASYS in drive _ALTI64$DKB500

It's time to use DKDRIVER logging to get more detail.

The DKDRIVER SDA extension will use a ring buffer to log the SCSI commands sent 
and the responses back from the controller.

$ anal/sys

OpenVMS system analyzer

SDA> dklog
DKLOG command format:
   DKLOG SHOW  {<devnam>|/ADDRESS=<ucbaddr>} [/DIRECTION=[FORWARD|BACKWARD(D)]
   DKLOG START {<devnam>|/ADDRESS=<ucbaddr>}[/ENTRIES=[<count>|128(D)]
   DKLOG STOP  {<devnam>|/ADDRESS=<ucbaddr>}
   DKLOG CLEAR {<devnam>|/ADDRESS=<ucbaddr>}
   <devnam> acts on all matching device UCBs, <ucbaddr> acts on a single UCB.
SDA>

So, you'd do

SDA> DKLOG START <devnam>
SDA>exit
$ mount . . .
anal/sys
SDA> SET OUT <filename>
SDA> DKLOG SHOW <devnam>
SDA> EXIT
$

-- 
                  -- Rob