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
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> 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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