[comp.sys.ncr] Update: Tape Drive Light Problem

dougw@fdls.UUCP (dougw) (02/22/90)

During January, I had written:

 We have an NCR Tower 32/650 with NCR Unix 02.01.01.  When I use the NCR
 System Administrator (sa) menus to do a PARTITION BACKUP to an internal
 150 cartridge tape drive in the bottom tape slot, the drive light stays
 on . . .
 
Several others posted to the net or sent me email that they had experienced
the same problem.  And, Sam Vause posted the following:

 Please contact your NCR Customer Support Center . . . and request the "Tape
 Drive Light Patch" ...
 
Diane Vandaveer in the NCR Customer Support Center was aware of the problem
but was unaware of a "Tape Drive Light Patch".  I quoted her Sam's suggestion,
and she said she would look into it and get back to me.  A week later, she
telephoned that she had the patch and was sending it to me.  When it was
received, there was a 2 page disclaimer letter from the Customer Support
Service Center Manager that this patch had not yet been cleared by NCR Quality
Assurance and to use it at our own risk.  Being a glutton for punishment, I
installed the patch which replaces a kernel module and then relinks the
kernel.  Then, I performed a PARTITION BACKUP through the NCR System
Administrator (sa) menus and the tape drive light unfortunately was not turned
off.  As before, I had to do a COMPLETE SYSTEM SHUTDOWN to get the tape drive
light to turn off.

When I reported this to Diane Vandaveer, she talked to whomever she had
contacted to get the patch, and they insisted it "WORKED FOR THEM".  Then, she
dialed into our system and discovered we are "non standard" in a few areas.
(specifically, our root partition is on device sda1 which is a 610 mb
(formatted) hard disk driven by a SCSI board.  We also have 2 stock NCR 120 mb
drives driven by NCR's Mass Storage Controller.  The comment was something
like "I didn't even know you could do that . . .!".  Anyway, we rapidly became
unsupported and no further action has been taken by NCR Customer Support on
our problem.

It appears what is needed now is another user with this same problem but with
a "stock" NCR system who is willing to install the patch (could be read as
"another glutton for punishment").  To date, we are the only customer site who
has installed this patch through the NCR Customer Support Center (in San
Diego).  I have discussed this approach with Diane Vandaveer, and she is very
willing to do this.  Just contact "CODAR" and request the "Tape Light Drive
Patch".  I would also suggest you ask that they broadcast your incident to
Diane Vandaveer and reference our outstanding incident number which is
00122496.

As an aside, any takers should make sure that the last make of their kernel
was done under the name 'config'.  Why?  Because that is the name the patch
installation uses and takes all the kernel configuration parameters from
there.  This created all sorts of fun and games for us since we had last
manually relinked using the name 'test' as recommended in the NCR Tower
Performance Tuning Tutorial.  Now that we know this, we have converted to using
the name 'config' for manual kernel relinking.  It is suggested this
fact be included in the installation instructions for all patches where an
automatic kernel relink is done.


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Doug Walker                        |   email: uunet!fdls!dougw  |
Oregon Department of Agriculture   |     Tel: (503) 378-3790    |
Food and Dairy Division            |     Fax: (503) 378-5529    |
635 Capitol Street NE              |                            |
Salem, OR  97310-0110              |                            |
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