> We are running on 3570 tape drives and use AS/400 models 170-2291,
510-2143, and
> 620-2180 running ADSM Ver 3.1.1.7.  We also run over a 16 mb token ring
LAN at
> each site and use TCP/IP as a connection method.   Our clients are NT 4.0
> servers running with raid DASD and ADSM Ver 3.1.06.
>
>  We have found the performance to be quite a bit slower than we wanted.
We do
> Absolute Incremental backups at the begining of each month and Modified
> Incremental daily backups the rest of the month.  Our largest client has
about
> 35 GB and takes almost 24 hours to do the Absolute backup at the beginning
of
> the month.  The smaller clients (generally between 7 and 10 GB) take 9 to
14
> hours to complete.
>
> We have worked with various buffersizes, window sizes, compressed/no
> compression, etc but have yet to make a dent in the performance of the
backups.
>
> While the backups are a major concern, the restores have always been quite
good.
> Of course, most all of the restores have only involved either a small
group of
> files or a single directory with the largest restore being about 200 MB.
>
> I hope that this helps provide a viewpoint from another AS/400 shop.
>
>
>
>
>
> Don Schmeichel <Don_Schmeichel AT CNT DOT COM> on 03/23/2000 03:05:05 PM
>
> Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>
> To:   ADSM-L AT VM.MARIST DOT EDU
> cc:    (bcc: MIKE HANLEY/NHBB/USA/MINEBEA)
> Subject:  ADSM /400 performance?
>
>
>
> Those of you running ADSM Server on a AS/400, wondering what kind of
> perfomance are you getting on your backups and restores per drive?
>
> Thanks.
>
>
> -Don
> Don Schmeichel
>
> Sr. San Integration Consultant
> Phone:  (612) 268-6631
> E-mail: Don_Schmeichel AT CNT DOT com