Hi Ben,

Yes, you can. I don't know of any resource that describes the howto but what we
do is (in a nutshell) :

Make two separate server directories and copy the contents of your original
server directory to the new directories. (Use a symlink if you want to upgrade
your server software !)
Make sure that your servers are listening on different tcpip ports, so you must
edit at least one of your server options files. Remember to also tell the
clients that they must use the new port to contact their server.
We have defined two lmcp's; both use the same entry in the /etc/ibmatl.conf.
Only one lmcp daemon is running and both lmcp's use it.

The memory issue: I guess you could do something with the ulimit statement in
the rc.adsmserv.

Hope this is useful info.

Regards,

Chris Roelofs
Mainland Sequoia B.V.

______________________________ Reply Separator _________________________________
Subject: Multiple ADSM servers on one box
Author:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> at inet-1
Date:    08/12/1998 10:16 AM


Current environment:
   2 ADSM servers. An R50 w/ 8 CPUs and 1GB RAM, & an R40 w/4 CPUs and 512
MB RAM. Both running AIX 4.2.1.
   1 3494 library w/ 12 3590 drives. 8 attached to the R50 and 4 attached to
the R40.

Our current environment works well for us, but leases are coming up for
renewal soon and I have been asked to look into the possibility of
consolidating these 2  ADSM servers onto 1 S70.

Future environment:
   1 box. An S70 w/ 8CPUs and 2GB ram.
   1 3494 library w/ 12 3590 drives. All drives attached to the S70.

        I have looked into the set up on the S70, and it looks like we can
get it to support all the SCSI, FDDI, Ethernet and SSA cards we will be
putting in it. The concerns I have now are related to ADSM, so I need some
advice.

1. Can I run 2 ADSM Version 3 servers on the same box?
        - I see in the ADSM Version 2 documentation it says I can, but find
no references in the V3 manuals about it.
        Can anybody point me to a resource that may cover running 2 servers
on the same box?

2. If the answer to question 1 is "yes", then ...
        - How will it effect my connection to the 3494 library? Will I run 1
or 2 lmcp daemons on the box?
        - In my current environment, the ADSM server consumes all the memory
on the box. How do I set a limit on the amount of memory        each ADSM
server can use? (e.g.. limit each server to 1 GB of memory).
        - Any other "gotcha"s?

Thanks,

Ben
Micron Technology Inc.
Boise, Idaho