Hi Timo,

We are also experiencing this problem. I found APAR IC32694 on Tivoli's
website, which states that TSM is turning off compression at the drive, but
doesn't really give a resolution. We are going to be opening a PMR with
Tivoli in the future.

Regards

Stuart

Infrastructure Services
Operations Bridge
Innogy
Swindon
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Fax     01793 896065
*       mailto:Stuart.Pitt AT Innogy DOT com

Pleas note the change of company name from National Power to Innogy


> -----Original Message-----
> From: Kilchenmann Timo [SMTP:Timo.Kilchenmann AT BECHTLE DOT CH]
> Sent: Tuesday, June 04, 2002 5:40 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: Problems setting compression on SDLT drives in a Compaq
> MSL5026SL library
>
> Thanks for your answer!
>
> So what is the value "SDLTC" in device class "DLT" for? Probably to choice
> between compression/nocompression - right?  Because of the hardware/os
> combination the TSM device driver is used -  IT is a Tivoli TSM thing! No
> one having the same problem?
>
> Cherrs,
>
> Timo Kilchenmann, Bechtle Data AG Regensdorf, Tel:   (+41) 1 843 34 91
>
>
>
>
> --------------------------------------------------------------------------
>  Externe Mail : "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>  04.06.2002    13:24
>
> --------------------------------------------------------------------------
>
>
>
>               Gesendet von: "ADSM:
>               Dist Stor Manager"         An:    ADSM-L AT VM.MARIST DOT EDU
>               <ADSM-L AT VM.MARIST DOT EDU>     Kopie:
>                                          Thema: Re: Problems setting
> compression on SDLT drives in a Compaq MSL5026SL         library
>               Bitte antworten an
>               "ADSM: Dist Stor
>               Manager"
>
>
>
>
>
>
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Kilchenmann Timo
> > We use a Compaq MSL5026SL tapelibrary. Device class "DLT" is configured
> to
> > use SDLTC recording format. Compression is ON until TSM does access the
> > drives for the first time - after that compression is OFF (according to
> > library/drive configuration information). TSM Server is 4.2.1.0 on W2K.
> >
> > Can someone advice me how to configure TSM so that it uses drive
> > compression? Many thanks in advance!
>
> TSM does not contain a mechanism for setting hardware parameters. (Almost
> impossible with the thousands of drive/OS combinations possible!) It
> sounds
> like a bug in the tape driver.
>
> --
> Mark Stapleton (stapleton AT berbee DOT com)
> Certified TSM consultant
> Certified AIX system engineer
> MSCE


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