I haven't worked at tuning our 9710.  I am using these parameters, which
I took straight from the ADSMEnh README  for use with the 9710:

     AIX (non-SP2)
   BUFPoolsize          2048
   LOGPoolsize          512
   EXPINterval          24
   MOVEBatchsize        1000
   MOVESizethresh       500
   TCPWindowsize        256
   TXNGroupmax  40 (256 if data migrating direct to tape)

We have six DLT 7000's in the 9710 on 2 scsi buses, running on an RS6000
J30 with 4 processors.
I have never been able to really stress the J30 or the 9710.

Last night my copy from the collocated to the non-collocated tape pool
ran for 2 hrs 17 minutes.
It used one process, mounted 12 DLT 7000 cartridges for input, 1 for
output.
The report in the activity log said it moved moved 179800+ files, 8.2
GB.



>----------
>From:  Naveed Mustafa[SMTP:Naveed_Mustafa AT mckinsey DOT com]
>Sent:  Friday, May 16, 1997 2:44 PM
>To:    ADSM-L AT VM.MARIST DOT EDU
>Subject:       Re: DLT 7000 Performance
>
><<File: PIC19501.PCX>>
>Hi Peter and ADSMers,
>
>What other server parameters have you set up?  I am transferring my data
>from non collocated to the collocated tapes and the transfer rate is
>extremely poor for 6 DLT 4000 drives in the STK 9710 library.  It has been
>over 24 hours and only 843,388,247 bytes of data has been transferred
>though MOVESIZETHRESH is set to 1000 and MOVEBATCHSIZE is set to 40.
>
>Any suggestions??
>
>Thanks,
>Naveed.
>
>
>
>
> (Embedded
> image moved   Peter_Thomas @ MANULIFE.COM
> to file:      05/16/97 12:48 PM
> PIC19501.PCX)
>
>
>
>
>Please respond to ADSM-L AT VM.MARIST DOT EDU
>
>To:   ADSM-L @ VM.MARIST.EDU
>cc:    (bcc: Naveed Mustafa)
>Subject:  Re: DLT 7000 Performance
>
>
>
>
>From: Peter Thomas on 05/16/97 12:48 PM
>Cynthia
>Would there be any benefir to increasing the value of MOVEBATCHSIZE?
>My understanding is that MOVEBATCHSIZE indicates the maximum number of
>"files" can be moved in a single transaction between media, while
>MOVESIZETHRESH indicates the "maximum quantity" of data to move in a single
>transaction.
>With your MOVESIZETHRESH set to 500, it would imply that unless your files
>averaged 12.5 Meg in size, you'll never be seing the benefit of the 500 M
>Threshold. The ADSM Performance Tuning guide suggests uping MOVEBATCHSIZE
>to 1000.
>
>
>
>