Re: [Networker] Questions on setting up cleaning for Storagetek library?

It was my understanding that in the 6.1.x releases Networker Auto Clean is
simply time based cleaning (whether the drive needs it or not).  I don't
recall it responding to the drive cleaning lights (at least on Quantum
libraries).  In 7.1.1 I specifically saw networker responding to the
cleaning light from DLT7000 drives in a Quantum library.  Of course, as
mentioned in another post, the DLT7000 drives would erroroneously post
a cleaning signal; we were going through many cleaning tapes and for 7.1.1
turned CDI off for the DLT7000 drive library.

That is,  to me it seemed 7.1.1 (with CDI) responded to drive cleaning
signals (but also cleaned the drive every x weeks also).  Have people seen
6.1.3 responding to cleaning lights on drives ??



Robert Maiello
Pioneer Data Systems


On Thu, 29 Jul 2004 17:46:14 -0400, George Sinclair
<George.Sinclair AT NOAA DOT GOV> wrote:

>How does NetWorker determine that it's time to clean the drive? Doesn't
>the library tell it?
>
>Librado Pamintuan wrote:
>>
>> Based on our experience, we use the Library cleaning option. The tape
>> library will be able to sense the tape drive's request for cleaning. If
>> you set or schedule the cleaning thru Networker, you might end up
>> damaging the heads because of frequent cleaning even though the drives
>> aren't dirty yet or the worst scenario is that you might have damaged
>> media due to dirty heads. The tape drives needs to be cleaned, but they
>> are not scheduled to be cleaned yet by Networker, so they stay dirty
>> until the cleaning schedule is reached.
>>
>> Librado Pamintuan
>> Technical Support Analyst II
>> Information Systems Dep.
>> Operations Group
>> City of Regina
>>
>> Phone:          (306) 777-7573
>> General Fax: (306) 777-6804
>> eFax:             (306) 546-6002
>> eMail:            lpamintuan AT regina DOT ca
>>
>> >>> George Sinclair <George.Sinclair AT NOAA DOT GOV> 07/29/04 02:33pm >>>
>> Hi,
>>
>> We're running a Storagetek L80 with 4 LTO gen 1. drives (Seagate).
>> Using
>> NetWorker 6.1.1 on primary (Solaris) and storagenode (Linux). We can
>> set
>> up cleaning from the library or NetWorker. Can someone suggest which
>> method is best? Obviously, we don't want both, but not sure which way
>> to
>> go.
>>
>> Storagetek tells me that they have customers doing either of the two
>> methods. I'm concerned that if we set up the cleaning from the library
>> that the library will take the drive off line when it needs to clean
>> it
>> and NetWorker could either be using the device or preparing to and
>> that
>> might cause problems, so I'm leaning toward setting this up from
>> NetWorker for proper hand shaking, but I'm open for suggestions.
>> Another
>> concern, though, is this: if I set up automatic cleaning from
>> NetWorker,
>> will the library in fact tell NetWorker that the drive(s) needs to be
>> cleaned? The library is supposed to relay this info/request to the
>> software, correct? Does this work properly on the Storagetek
>> libraries,
>> anyone?
>>
>> Thanks.
>>
>> George
>>
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