Yesterday I blogged at tsmexpert.org and increased what I knew. I wrote with 90% certainty of what I wrote was totally accurate. Comments came back and I was enlightened. Everything we say and write is based on what we've experienced and is always subject to change. It's better so say something and get it wrong, than not say anything at all and still believe it's correct. That said, let me offer you some tips from the field I learnt yesterday in another case

setopt maxsessions - server side option which dictates total number of sessions, client and server, that can run at any one time.

set schedmaxsessions - the number specified here is a PERCENTAGE of 'maxsessions' and dictates what percent of the maxsessions can be used for server/client schedules, like the maintenance script or daily client backups.

Defaults if I remember correctly are (maxsessions 25) (maxschedsessions 20) which were not high enough for a recent job I was involved in. We had migrated all the clients over to another storage pool and wanted full backups of each node, when they all tried to initiate there connection on the schedule, 20% of 25 sessions was not enough. Values changed and hopefully today when I visit site, all will be well with the world.

Cheers
Ryan Partington