Actually, I'll answer for Craig. He _did_ implement that feature, and got
frustrated at THOSE results. The problem with automated tape cleaning by
the STK library is that NBU doesn't know the drive is being cleaned, and it
tries to put a tape in the drive. You get weird errors and down'd
drives. With 100+ tape drives in his environment, he gave up on that.
So I suggested changing it to the TapeAlert feature (since they're not
using SSO yet). Lo and behold this doesn't seem to work very well
either. The only real answer left is frequency-based cleaning, which I'm
not a big fan of, since that's not how DLTs should be cleaned. However,
frequency-based cleaning isn't supported in 3.4 SSO. (And they're looking
at it.)
There's no good answer to this question, AFAIC.
At 11:54 PM 2/12/01 +0100, f@b wrote:
> Hi ,
>
>I suggest you to implement the "autoclean" feature on the StK's library.
>
>This is the better way to ensure you that a drive cleaning is done.
>
>Hth , bye.
>
>Fabrice
>
>-----Message d'origine-----
>De : veritas-bu-admin AT Eng.Auburn DOT EDU
>[mailto:veritas-bu-admin AT Eng.Auburn DOT EDU]De la part de Andrew Shinkarev
>Envoye : lundi 12 fevrier 2001 22:13
>A : Everett, Craig
>Cc : Veritas-bu AT mailman.eng.auburn DOT edu
>Objet : Re: [Veritas-bu] Tape Alert automated cleaning not working
>
>
>On Mon, Feb 12, 2001 at 12:44:07PM -0800, Everett, Craig wrote:
>
>Make them check Front Panel.
>It says if a tape drive needs cleaning.
>
>If you are using SSO, time based cleaning
>doesn't work quite well, and still
>you will need to check libraries sometimes.
>
>Simple script, ssh to robot host and
>tpclean command should help your operators to
>handle this on daily basis.
>
>Thanks,
>Andrew
> > Andrew,
> >
> > That's strange because Netbackup Support doesn't seem aware of severity of
> > cleaning request and possible ignores.
> >
> > I would have our operators do manual cleaning if I could but I've got 100+
> > drives which would become cumbersome at best. I guess if I can't get this
> > to work I'll switch to frequency based cleaning.
> >
> > Thanks for your help,
> >
> > Craig Everett
> > Technology Operations-Storage Team
> > Intuit Inc
> > craig_everett AT intuit DOT com
> >
> >
> >
> > -----Original Message-----
> > From: Andrew Shinkarev [mailto:shinkara AT pprd.abbott DOT com]
> > Sent: Monday, February 12, 2001 12:31 PM
> > To: Everett, Craig
> > Cc: Veritas-bu AT mailman.eng.auburn DOT edu
> > Subject: Re: [Veritas-bu] Tape Alert automated cleaning not working
> >
> >
> > On Mon, Feb 12, 2001 at 11:09:03AM -0800, Everett, Craig wrote:
> >
> > You are not alone....
> >
> > DLT7000 Tape System Product Manual p.5-56 contains a list of
> > TapeAlert Flags, Severity Levels, and Meanings for LOG SENSE
> > command. There are 9 flags, and 6 of them correspond to
> > cleaning requests. 3 of them have Severity Level Critical
> > and 3 just Warnings. I think NetBackup ignores Warnings
> > and taking care of Critical errors, becous I've seen NetBackup
> > cleaning a tape drive.
> >
> > You can ignore them too ....
> > I am checking my library every day and clean a tape drive
> > if I see a cleaning request on a front panel.
> >
> > Thanks,
> > Andrew
> >
> >
> > > Background:
> > > Sun E-450/Solaris 2.6
> > > Netbackup 3.2
> > > Storagetek L700 and 9740 Libraries
> > > DLT 7000 Drives w/ 245F and 2565 microcode levels
> > > Problem: Drives are not self cleaning using tape alert
> > >
> > >
> > > Issue:
> > > I recently implemented the tape alert method of cleaning on all of my
> > master
> > > servers. I set up barcode rules and inserted cleaning tapes as required.
> > The
> > > master server is aware of the cleaning tape:
> > >
> > > Masterserver# vmquery -b -mt dlt_clean
> > > media media robot robot robot side/ optical # mounts/last
> > > ID type type # slot face partner cleanings
> > > mount time
> > > ---------------------------------------------------------------------
> > > CLN002 DLT_CLN NONE - - - - 0
>00/00/00
> > > 00:00
> > > CLN003 DLT_CLN NONE - - - - 0
>00/00/00
> > > 00:00
> > > CLN001 DLT_CLN NONE - - - - 0
>00/00/00
> > > 00:00
> > > CLN008 DLT_CLN NONE - - - - 0
>00/00/00
> > > 00:00
> > > CLN016 DLT_CLN NONE - - - - 0
>00/00/00
> > > 00:00
> > > CLN000 DLT_CLN TLD 0 248 - - 20
>00/00/00
> > > 00:00
> > >
> > > So I know I have the cleaning tape available and mouts are at 20 ( it's
>a
> > > new tape ). Manual Cleaning works. Drive cleaning frequency is set to 0.
>I
> > > keep finding tape drives with their cleaning light on ( cleaning
>required
> > )
> > > , but I don't see any cleaning occurring indicated by decremented
>cleaning
> > > tape mounts. I've set VERBOSE in my vm.conf so I can see the request for
> > > cleaning entered in the /var/adm/messages log but nothing ever comes
> > > through? Has anyone ever seen this? Is there a command to simulate a
>drive
> > > requesting a cleaning besides doing a manual cleaning? What netbackup
>log
> > > would be a good place to find some hidden problem that are perhaps
> > > preventing the cleaning? Any input would be greatly appreciated.
> > >
> > > Thanks,
> > > Craig Everett
> > > Technology Operations-Storage Team
> > > Intuit Inc
> > > craig_everett AT intuit DOT com
> > >
> > >
> > > _______________________________________________
> > > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> >
> > --
> > ----
> > Andrew Shinkarev
> > Network Systems Specialist
> > Abbott Laboratories
> > (847) 9387559
> > shinkara AT pprd.abbott DOT com
>
>--
>----
>Andrew Shinkarev
>Network Systems Specialist
>Abbott Laboratories
>(847) 9387559
>shinkara AT pprd.abbott DOT com
>_______________________________________________
>Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>_______________________________________________
>Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
