Hi ADSM-folks!

Our environment:
ADSM Server f. MVS, Ver. 2.01.12, running on OS/390 Rel. 2                      
      (SW)
Token Ring 16 mb/sec                                                            
      (HW)
ADSM Client f. OS/2, Ver. 2.01.07, OS/2 Warp Server, TCP/IP                     
      (SW)
  HP Vectra XU 6/200, 64 MB RAM, 2 GB SCSI-HD, Madge Blue+ Token Ring Adapter   
(HW)
ADSM Client f. Novell, Ver. 2.01.07, Netware 3.11 + 4.x, TCP/IP                 
              (SW)
  HP NetServer, 64 MB RAM (min.), RAID-5, Madge Blue+ Token Ring Adapter        
        (HW)

Tuning TCP (not IP, only OSI layer 4) on our Novell servers we fasten the 
backup from 100 KB/sec up to 300KB/sec and more.
Setting the parameter MAXFRAMESIZE to 2048 is the main reason for the higher 
speed.

We only reach 100KB/sec when we backup the OS/2 server. We try everything 
written in the "ADSM Performance Tuning Guide",
but we never reach the speed of our Novell backups. For us 100KB/sec seems to 
be the highest OS/2-backup-speed, but it is
much to slow. Our network guy checked out, that the TCP-FRAMESIZE during a 
OS2-backup is only 512 byte.

Is there any way to tune TCP under OS/2 (like we did under Novell) ???
How fast is Your OS/2-backup ???

Ulrich Klose
VICTORIA Versicherung AG
Abt. RB31
Victoriaplatz 1
40198 Duesseldorf
Germany
email: devici01 AT ibm DOT net