Hello
You need to set your barcode rules to recognize a given prefix as indicating
that the tape is a cleaning tape. Otherwise you need to specify the media type
as a cleaning tape manually when you first add the volume to the library. My
barcode rules read as follows:
Barcode Tag Media Type Volume Pool Max Mounts/Cleanings
Description
CLT 8MM_CLN None 70 AIT cleaning tape
<DEFAULT> 8MM Hold 0 other barcodes
Note you also need to set the desired cleaning frequency for each drive. I
believe you can do that from the GUI but I always do it from the tpclean
command.
Some tape libraries have the ability to detect the drive needs cleaning
indicator from the drive itself, i.e.: each tape drive would be installed with a
cable from a jumper location to the tape library itself. With these libraries,
you simply designate which slot holds the cleaning tape to the library itself,
whether through it's control panel, serial port, telnet or web page and the
whole cleaning operation is transparent to the software; however I still prefer
using the software frequency based method even though it means cleaning more
often than necessary simply because when the drives are cleaned, they actually
realign the heads to control signals on the cleaning tape hence if I start
picking up a bunch of read errors on a given tape drive, I can readjust it's
alignment by issuing a clean command.
Note although you can have as many cleaning tapes as you want in a library, I
would only have one in there at a time so that all the drives get aligned to the
same reference.
It's also a good idea to track how often you're cleaning a tape drive cause if
you are frequently issuing a manual clean command due to a large number of read
errors than it may be best to simply exchange that drive out and send it back to
the factory repair depot.
Regards,
John I Wang
Sr. Systems Engineer
Steverson Information Professionals
---
Enron Networks
Enron Building room 3427e
ph (713) 345-4888
cell (832) 493-1263
fax (713) 646-8462
pg pagejwang AT skytel DOT com or 1-877-390-4155
|--------+----------------------->
| | Andrew.Prince|
| | @atlp.com |
| | |
| | 07/17/01 |
| | 01:30 PM |
| | |
|--------+----------------------->
>--------------------------------------------------------------------|
| |
| To: veritas-bu AT mailman.eng.auburn DOT edu |
| cc: (bcc: John Wang/Contractor/Enron Communications) |
| Subject: [Veritas-bu] RE: Cleaning Media Not Working... |
>--------------------------------------------------------------------|
Gregory and Others,
Please forgive my ignorance or outright stupidity... I am a hardware guy,
not a software guy, reading the list for insights to help customers...
Does your changer read bar code labels? Are you using bar code labels? Are
the cleaning tapes using bar codes that start with CLN...
DLT drives will know the tape is a cleaning tape when it is inserted into
the drive, but my understanding is that the software doesn't know it's a
cleaning tape unless you use "cleaning tape" barcodes (grey and start with
CLN) and the changer reads the bar codes.
Tape libraries made by ATL will only recognize a cleaning tape if you are
using cleaning tape labels (I think so anyway. Having worked for ATL less
than a year I could be wrong).
Also, the only way you can reuse a specific cleaning label on a subsequent
cleaning tape is to purge some database that Netbackup uses to keep track of
the cleaning tapes. So I've heard. And no I don't know how to do that...
I hope this helps, and doesn't confuse the issue more...
TTFN
Andrew Prince
> From: "Zielinski, Gregory J." <Gregory.Zielinski AT Honeywell DOT com>
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Date: Mon, 16 Jul 2001 08:43:29 -0700
> Subject: [Veritas-bu] Cleaning Media Not Working
>
> Having trouble with the cleaning media being recognized. This is on a
> Monthly cleaning tape, we get the error message
> "Physical Volume Library Media not found." And when you look
> on the devices
> tab you see that it finds a tape in slot 1 but the tape label
> does not say
> "Cleaning Media" When the tape is first placed into the
> changer you can see
> that the change see that the tape is a cleaning media but the
> software does
> not seem to recognize that the tape is a cleaning tape.
>
> Any ideas on what to do next, we have redefined the job and
> tried a new
> cleaning tape and the problem keeps coming back.
>
> Thanks
>
> > Gregory J. Zielinski
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
