Veritas-bu

[Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1 MP3

2006-03-06 20:14:04
Subject: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1 MP3
From: Len.Boyle AT sas DOT com (Len Boyle)
Date: Mon, 6 Mar 2006 20:14:04 -0500
One thing to remember, many libraries require that the library and not the 
application software do the tape drive cleaning. 
We have that with our sun(aka stk) acls controlled library and our ibm 3584 
library with the alms feature. 

len 

-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu [mailto:veritas-bu-admin 
AT mailman.eng.auburn DOT edu] On Behalf Of George Drew
Sent: Monday, March 06, 2006 3:55 PM
To: Greenberg, Brian
Cc: Paul Keating; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1 MP3

Well, frequency-based cleaning is up to you. Not recommended in an SSO
environment, as drive-in-use time is tracked on each media server, and
you will end up attempting to over-clean your drives. You'd have
to check with your drive vendor, but I know that a lot of drives will
ignore a cleaning tape if it doesn't think it needs cleaning, or if
it's too soon.

As I said before though, don't worry about those lights. Netbackup
checks tapealert on mount and dismount, and as long as you have a
cleaning tape configured that still has cleanings left, netbackup
will take of cleaning with no hassle. If you start seeing a lot of
media errors you might be having some problems with drive cleaning,
but mostly it just works.

George

On Fri, 3 Mar 2006, Greenberg, Brian wrote:

> That's fantastic.  So I should probably do frequency based cleaning then
> until I go to NBU 6.0?  The drives seem to need cleaning after about 500
> or 600 hours of use.
>
> Regards,
>                   Brian
>
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of George
> Drew
> Sent: Thursday, March 02, 2006 6:14 PM
> To: Paul Keating
> Cc: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1
> MP3
>
> The best thing to do (for nbu versions < 6.0) is to ignore those
> lights. Those versions of netbackup only recognize two of the 48 or
> so possible flags set on the tapealert log page, clean now and clean
> periodic. The light on the front of the drive could get set for who
> knows how many of the other possibilities (ask ADIC or IBM). Also,
> the tapealert log page is a 'read and clear' log page, meaning if
> something (the library) reads it before netbackup then netbackup will
> never see that the flag was set, and take no action.
>
> Netbackup 6.x will tell you which flag was set, and take action on
> many of them.
>
> George
>
>
> On Mar 2, 2006, at 10:01 AM, Paul Keating wrote:
>
>> In the 18 months since my two L700's have been in production, for the
>> first 6 months, one library was doing nightly backups and daily
>> vaulting, then both libraries in use with Inline tape copy for the
>> last
>> 12 months, I've used 1 tape in the first library (25 cleanings) and
>> maybe a dozen cleans in the second library.
>>
>> Paul
>>
>>> -----Original Message-----
>>> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
>>> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of
>>> Greenberg, Brian
>>> Sent: March 2, 2006 10:42 AM
>>> To: WEAVER, Simon; veritas-bu AT mailman.eng.auburn DOT edu
>>> Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and
>>> NBU 5.1 MP3
>>>
>>>
>>> Ahhh, I misread your message.  So you were essentially doing
>>> frequency
>>> based cleaning.  Yes, that's my other option.  Fortunately, the
>>> lights
>>> on our drives only come on about after 800 hours of use,
>>> approximately.
>>>
>>> I still have a ticket open with Veritas.  We're trying to see if the
>>> cleaning count decrements at all on the tapes since tpconfig's report
>>> isn't telling me if the drive gets cleaned when it looks like
>>> from time
>>> to time it does, so I'm looking at that report every day too.
>>>
>>> So what libraries are you using?
>>>
>>> Regards,
>>>                    Brian
>>>
>>> -----Original Message-----
>>> From: WEAVER, Simon [mailto:simon.weaver AT astrium.eads DOT net]
>>> Sent: Thursday, March 02, 2006 9:36 AM
>>> To: Greenberg, Brian; veritas-bu AT mailman.eng.auburn DOT edu
>>> Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1
>>> MP3
>>>
>>>
>>> Hi Brian
>>> No, I never waited for the lights, because as mentioned, the
>>> lights seem
>>> to
>>> come on almost after EVERY backup.
>>>
>>> What I done, was within 3.4, checked how many times the drive was
>>> used
>>> and
>>> approx once per month used TPClean.
>>>
>>> ADIC support was totally useless, blaming the Netbackup
>>> Software.... But
>>> how
>>> could it be the software if the drive is telling me it needs
>>> cleaning??
>>>
>>> I had a schedule to run TPCLEAN every month Brian - when I
>>> say "manual",
>>> what I meant was "not controlled by Netbackup".
>>>
>>> Most of my Netbackup implementation is all automated - I only
>>> ever look
>>> at
>>> the product or drives if I get an alert.
>>>
>>> Thankfully, I no longer use ADIC :-)
>>>
>>> Simon Weaver
>>> Technical Support
>>> Windows Domain Administrator
>>>
>>> EADS Astrium
>>> Tel: 02392-708598
>>>
>>> Email: Simon.Weaver AT Astrium.eads DOT net
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: Greenberg, Brian [mailto:Brian.Greenberg AT citadelgroup DOT com]
>>> Sent: 02 March 2006 15:33
>>> To: WEAVER, Simon; veritas-bu AT mailman.eng.auburn DOT edu
>>> Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1
>>> MP3
>>>
>>>
>>> So your cleaning process is completely manual?  You waited to see
>>> cleaning
>>> lights on the drives and then cleaned them?
>>>
>>> That's what I've been doing, but for us, that's only a
>>> temporary fix. My
>>> motto, automate everything and then put the checks in place
>>> to make sure
>>> it's running properly.
>>>
>>> Regards,
>>>                    Brian
>>>
>>> -----Original Message-----
>>> From: WEAVER, Simon [mailto:simon.weaver AT astrium.eads DOT net]
>>> Sent: Thursday, March 02, 2006 9:25 AM
>>> To: Greenberg, Brian; 'veritas-bu AT mailman.eng.auburn DOT edu'
>>> Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1
>>> MP3
>>>
>>>
>>> Brian
>>> My ADIC would not communicate with Netbackup - manual intervention
>>> was
>>> the
>>> only way. I had a rule that NBU recognised the cleaning tape and was
>>> able to
>>> use TPCLEAN - but it was no big deal.
>>>
>>> Simon Weaver
>>> Technical Support
>>> Windows Domain Administrator
>>>
>>> EADS Astrium
>>> Tel: 02392-708598
>>>
>>> Email: Simon.Weaver AT Astrium.eads DOT net
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: Greenberg, Brian [mailto:Brian.Greenberg AT citadelgroup DOT com]
>>> Sent: 02 March 2006 14:56
>>> To: WEAVER, Simon
>>> Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1
>>> MP3
>>>
>>>
>>> Fair guess but no.  Actually, ADIC has nothing to do with it.
>>>  It's the
>>> tape
>>> alert that comes from the drive itself.  I have hardware/library
>>> frequency
>>> based cleaning off so that NBU can clean when it gets the request
>>> from
>>> the
>>> drive.  Barcode rules also wouldn't have anything to do with it
>>> either
>>> because they are only for importing media/inventorying media in the
>>> library.
>>>
>>> Regards,
>>>                    Brian
>>>
>>> -----Original Message-----
>>> From: WEAVER, Simon [mailto:simon.weaver AT astrium.eads DOT net]
>>> Sent: Thursday, March 02, 2006 1:44 AM
>>> To: Greenberg, Brian; veritas-bu AT mailman.eng.auburn DOT edu
>>> Subject: RE: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1
>>> MP3
>>>
>>>
>>> Hi Brian
>>> I had an LTO1 ADIC, and to be very truthful, I ended up doing it
>>> manually,
>>> because the tape request simply did not interact with Netbackup 3.4
>>>
>>> Not only that, the ADIC constantly wanted the drive to be
>>> cleaned almost
>>> every other day. And I found this hard to believe, because if
>>> you do too
>>> many cleans you would end up damaging the drive heads I guess!
>>>
>>> The things to check would be the Barcode Rules, that its
>>> identified as a
>>> cleaning tape, but as I said I never got it to automatically work. I
>>> checked
>>> the amount of times the drives had been used and where
>>> required cleaned
>>> them!
>>>
>>> Simon Weaver
>>> Technical Support
>>> Windows Domain Administrator
>>>
>>> EADS Astrium
>>> Tel: 02392-708598
>>>
>>> Email: Simon.Weaver AT Astrium.eads DOT net
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: Greenberg, Brian [mailto:Brian.Greenberg AT citadelgroup DOT com]
>>> Sent: 01 March 2006 16:08
>>> To: veritas-bu AT mailman.eng.auburn DOT edu
>>> Subject: [Veritas-bu] Cleaning issues: LTO-3/ADIC i2k and NBU 5.1 MP3
>>>
>>>
>>> I have a ADIC i2k with LTO-3 (IBM) drives in it and NBU 5.1
>>> MP3 running
>>> on
>>> RH Linux AS3 but I seem to be having some issues with drive cleaning.
>>>
>>>
>>> Some of the drives have the red 'C' indicator on the front of
>>> the drive
>>> with
>>> the amber light flashing signaling that the drive needs to be
>>> cleaned.
>>> However, the tapealert notification doesn't seem to be
>>> getting to NBU to
>>> do
>>> the clean on the drive.
>>>
>>> Yes, there are cleaning tapes in the library, in the correct
>>> partition
>>> and
>>> are labeled properly.  When I issue a tpclean command or do
>>> it from the
>>> GUI
>>> it works fine.  The problem is I have to do all that manually.
>>>
>>> The tape alert doesn't seem to be getting to NBU.  I checked the
>>> messages
>>> file but that doesn't seem to be giving me enough info.
>>>
>>> Anyone have a suggestion for me on where to look next?
>>>
>>> Brian Greenberg
>>> bjgreenberg AT gmail DOT com
>>>
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>>
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