David,

Any restore from DLT tends to be slow unless you have colocation turned
on (and a large supply of scratch tapes) or have very few clients
sharing the storage pool.  You are probably dealing with large numbers
of small files which also slows-down restore speed.

Steffan

david de leeuw wrote:
>
> Hi ADSM experts
>
> After running ADSM for two years with just incidental restores, we have to
> restore a complete Netware 3.2 server from scratch (12 GB disk).
>
> I started this morning and now (11 hours later) about 30 % of the restore
> is done.
>
> This seems to be very very slow indeed. The server is AIX, 4.2, ADSM
> 3.1.2.50, 128 MB, the client a pentium Novell 3.2 with 64 MB. Tape drives
> are DLT TZ88.
>
> The tape lights on the tape drives are flashing only every now and
> then.
>
> Most of the time the "in use" is steady on. Novell indicates a
> light load on the processor.
>
> The network is state-of-the art switched (10 MB/s).
>
> The tapes are set to compression. We have "compression off" at the
> client but the older backups might have beeen done with compression on.
> (Running backups is much much faster)
>
> I can't figure out why this restore takes forever.
>
> Any ideas ?
>
> David
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> internet:  david AT bgumail.bgu.ac DOT il   __o   David de Leeuw
> phone:     +972-7-6 47 7398        _`\<,_  Head, Medical Computing Unit
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