Re: [Veritas-bu] Cleaning tape setup Quantum i6000 Library

The ACSLS and SDLC type software (and possibly the ALMS) will handle cleaning differently than a TLD type robot. The problem with library based cleaning on a TLD robot is that the application software – NetBackup - is unaware that a drive is being cleaned. NetBackup can request a drive that is currently being cleaned. The library refuses the request because it is busy, so NetBackup downs the drive.

This happened to me quite a bit with the TLD type robots before using NetBackup cleaning. I had a robot that used to be very busy, and practically every morning we would have to “up” drives that had gone down because of this behavior.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Len Boyle
Sent: Friday, February 03, 2012 9:00 AM
To: Lightner, Jeff; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Cleaning tape setup Quantum i6000 Library

That is interesting.

We found with the IBM 3584 tape library (also known as TS3500) with the ALMS feature turned on, the library has to be doing the cleaning.

We used to use a STK L700 with ACSLS software for sharing the library between different Netbackup masters. We had issues and found a NetBackup tech note that said with ACSLS one had to let the library do the cleaning.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Lightner, Jeff
Sent: Friday, February 03, 2012 9:32 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Cleaning tape setup Quantum i6000 Library

The make and model are in the subject.

Quantum is specifically asking us to change to application based cleaning from robot based due to ongoing issue. Also in reviewing NetBackup documentation it seems to suggest that robot based cleaning should not be used.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Len Boyle
Sent: Thursday, February 02, 2012 6:09 PM
To: Lightner, Jeff; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Cleaning tape setup Quantum i6000 Library

What is the make and model of you tape library. A number of them require that the library do the tape drive cleaning.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Lightner, Jeff
Sent: Thursday, February 02, 2012 4:17 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Cleaning tape setup Quantum i6000 Library

To set NetBackup cleaning as opposed to robot cleaning itself I gather we need to setup barcode rules as discussed in the following thread:

http://www.symantec.com/connect/forums/cleaning-tape-cln

I’ve done that but am curious if they are correct about having to set HC2_CLN for HCART2 and HC_CLN for HCART? We have a mix of LTO3 (which we have as HCART) and LTO5 (which we have as HCART2) but the cleaning tapes are “Universal” so would work in either drive type. Do I really have to try to setup both HC_CLN and HC2_CLN? It seemed to me that the HC_CLN and HC2_CLN were just to allow you to have 2 different kinds of cleaning tapes.

Additionally – I’ve disabled the robot’s automatic cleaning and moved the cleaning tapes from the special cleaning slots to the general slots. Other than that and setting the barcode rules is there anything I need to do to enable NBU cleaning?

The drive cleaning frequency is set to 0 hours. Is it correct to think this is appropriate because I want the cleaning to be based on “tape alerts” rather than frequency based on the recommendation I saw in the NBU help?

Jeffrey C. Lightner

Sr. UNIX Administrator

DS Waters of America, Inc.

5660 New Northside Drive NW

Suite 250

Atlanta, GA 30328

P: 678-486-3516

C: 678-772-0018

F: 770-937-7360

E: jlightner AT water DOT com

Athena®, Created for the Cause™

Making a Difference in the Fight Against Breast Cancer

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