On Tue, 4 Jun 2002 [EMAIL PROTECTED] wrote:

> > Have you recently edited the tapelist file or changed the number of
> > tapes in use?  Rotated a tape into or out of circulation?
>
> Yes.  I have been replacing my AIT-1 tapes with AIT-2.  I have been
> relabling them with the same label as the one I am removing.  I did not
> see how this could have caused an error.

I will here give a somewhat verbose explanation about fixing up tapelist.
Perhaps it will shed some light on your problem.

***
Let's say you have five tapes. It's time for tape 004, so the tapelist
looks like this:

20020602 DailySet1-003 reuse
20020601 DailySet1-002 reuse
20020531 DailySet1-001 reuse
20020530 DailySet1-005 reuse
20020529 DailySet1-004 reuse  <-- this tape is due

You then add a tape and label it number 006. The new tape ends up at the
top. The tapelist now looks like this:

0 DailySet1-006 reuse         <-- newly added tape
20020602 DailySet1-003 reuse
20020601 DailySet1-002 reuse
20020531 DailySet1-001 reuse
20020530 DailySet1-005 reuse
20020529 DailySet1-004 reuse  <-- this tape is due

Will this cause problems? Well, the tapes will be requested in order 001,
002, 003, 006, 004, 005, etc. Non-intuitive, right?
          ^^^^^^^^^^^^^
How do you fix this up? Simple. Reorder and set time stamp. First,
reorder:

20020602 DailySet1-003 reuse
20020601 DailySet1-002 reuse
20020531 DailySet1-001 reuse
0 DailySet1-006 reuse         <-- new tape now in correct position
20020530 DailySet1-005 reuse
20020529 DailySet1-004 reuse  <-- this tape is due

Then, fix time stamp so that the new tape has the same time stamp as the
previous entry ('previous' meaning 'below'):

20020602 DailySet1-003 reuse
20020601 DailySet1-002 reuse
20020531 DailySet1-001 reuse
20020530 DailySet1-006 reuse  <-- time stamp now same as for 005
20020530 DailySet1-005 reuse
20020529 DailySet1-004 reuse  <-- this tape is due

Voila.

--
Ulrik Sandberg





Reply via email to