Hi Justino,
Why don't you use the library autoclean functionality, it's simpler and
moreover it won't use one slot in your 9740 as the cleaning slot is not
visible for TSM ?
rv
> -----Message d'origine-----
> De : Justino Costa [mailto:justino.costa AT EDINFOR.EDP DOT PT]
> Envoyé : mercredi 2 mai 2001 16:41
> À : ADSM-L AT VM.MARIST DOT EDU
> Objet : DLT Clean problem
>
>
> Hi all,
>
> I was wondering if some of you has had the following problem:
>
> --What we have:
>
> *) Storagetek 9740 with V1?????????????????
> *) 5 DLT7000 Drives with V115
> *) Sun Solaris 2.6 runing TSM V4.1.2.0
> *) Autoclean is disabled on the library
> *) TSM as "cleaning frequency" on all drives configure to "asneeded".
>
> --What happens:
>
> 1) When a drive turns on the "Cleaning Required" led, TSM
> doesn't receive
> any indication (or does not report it on the actlog ?) and
> therefore, it
> doesn't clean the drive.
>
> 2) In fact, TSM continues to read and/or write to the same tape or to
> another tape loaded afterwards, although the drives's clean
> led remains on.
>
> 3) Then, after a while, the drive reachs a point where it
> cannot read or
> write anymore to a tape. When this happens, TSM gives the
> following error:
>
> 2001-04-29 19:20:05
> ANR8302E I/O error on drive DRIVE_0 (/dev/rmt/7mt) (OP=READ, CC=422,
> KEY=03, ASC=80, ASCQ=01,
> SENSE=F0.00.03.00.00.00.00.16.00.00.8D.28.80.01.00.00.00.00.81
> .03.00.00.00.00.00.00.00.00.00.,
> Description=An undetermined error has occurred). Refer to
> Appendix D in
> the 'Messages' manual for recommended action.
>
> Which also appears on solaris syslog:
> "unix: WARNING: mt@0,0:
> scsi_cmd=8,errno=110,cc=422,sense=f0 0 3 0 0
> 0 0 16 0 0 8d 28 80 1 0 0 0 0 81 3 ^ "
>
> 4) TSM now cleans the drive but only after the ANR8302E message:
>
> 2001-04-29 19:20:05 ANR8914I Drive DRIVE_0
> (/dev/rmt/7mt) in library
> STK9740_2 needs to be cleaned.
> 2001-04-29 19:23:37 ANR8906I Cleaning drive DRIVE_0
> (/dev/rmt/7mt) in
> library STK9740_2.
> 2001-04-29 19:34:13 ANR8908I CLEAN DRIVE for drive DRIVE_0
> (/dev/rmt/7mt) in library STK9740_2 completed successfully.
>
>
> --The problem:
>
> Due to the ANR8302E, any operation that was using that
> tape/drive fails. If
> the operation that failed had been, for example, a
> reclamation process,
> there shouldn't be a problem because we can allways restart a
> reclamation
> process.
>
> However, if the operation that abort had been, for example, a
> TDPOracle
> backup of a huge Database, then this is a problem because the
> backup will
> fail and it will have to start all over again.
>
> There is also another problem. Due to the several clean
> erros, some tapes
> are now unreadable and we already lost some. I managed to
> recover some with
> "restore volume" command but, there were other that I couldn't recover
> because the readings kept failing, precisely when they were
> being copied to
> a copy pool.
>
>
> --The simple question:
>
> Why doesn't TSM cleans the drive right after the drive's
> clean led turns ON
> ?
>
>
> Thank you very much,
> Justino Miguel Costa
> Edinfor - Unix Team
> justino.costa AT edinfor.edp DOT pt
>
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