John's comment below isn't quite right... as Alexander implied, Netbackup
(V3.2 and higher) is also capable of sensing a Tape Alert request from a
drive. It's not just time based.

John is correct when he says that Netbackup won't recognize a cleaning tape
by default... you must first create a barcode rule that looks for the
cleaning tape's barcode prefix (typically CLN); you must configure the rule
to define tapes with this prefix as DLT cleaning tapes, and you should set
an appropriate maximum number of cleanings (always 20 for DLT cleaning
cartridges, as far as I know). There is no additional configuration needed.
If the drive supports Tape Alert, and Netbackup knows that it has a cleaning
tape available, it will automatically initiate a cleaning cycle when the
drive signals that it needs one. You don't need to use tpclean to make this
happen.

-- Larry Cadloff
   Senior Consultant, VERITAS Software
   (617)529-4433


-----Original Message-----
From: John_Wang AT enron DOT net
To: Alex.Alonzo AT trw DOT com
cc: veritas-bu AT mailman.eng.auburn DOT edu
Date: Thu, 6 Sep 2001 10:10:35 -0500
Subject: Re: [Veritas-bu] Tape Alert Setup



Hello Alexander

Netbackup's cleaning algorithm is strictly time based i.e.: it keeps track
of
how many hours a given drive is in use and once it reaches a certain value,
the
cleaning tape is run through it.   Many robots have the ability to sense
when a
drive requests cleaning and therefore minimize your cleaning cycles to the
absolute minimum number of cycles needed, these have little wires plugged
into
the jumpers on the back of the tape drive.

--snip--

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|        |          09/05/01     |
|        |          04:25 PM     |
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  |
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  |       To:     veritas-bu AT mailman.eng.auburn DOT edu
|
  |       cc:     (bcc: John Wang/Contractor/Enron Communications)
|
  |       Subject:     [Veritas-bu] Tape Alert Setup
|
 
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NB Users:
Can anyone explain the steps I need to do to enable Tape Alert on our NB 3.4
setup, we currently have the STK 9710
robot doing the cleaning and we change the tape after 20 cleanings. All I
know I
must shutoff the robot cleaning, add a
cleaning tape with a CLN bar code to robot & inventory it.
What else and is there and is there a correct sequence ?

Alexander Alonzo
E-Enterprise
TRW Space & Electronics Group

*? alex.alonzo AT trw DOT com
*   310.814.6097