>From Tsm Admin Reference:
"GRoup
Specifies that collocation is enabled at the group level for client nodes. The
server attempts to put data for nodes that belong to the same collocation
group on as few volumes as possible. If the nodes in the collocation group
have multiple file spaces, the server does not attempt to collocate those file
spaces.
If you specify COLLOCATE=GROUP but do not define any collocation
groups or if you specify COLLOCATE=GROUP but do not add nodes to a
collocation group, data is collocated by node. Be sure to consider tape
usage when organizing client nodes into collocation groups"

The documentation is available online.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Hans Christian Riksheim
Sent: Wednesday, November 30, 2011 11:23 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Collocaton by group

By default a stgpool has Collocaton=group.

Does that mean it does no collocation if no collocaton groups are
defined? Or does it collocate by node?

We have a stgpool with collocaton=group but no collocaton groups
defined and tape utilization is very low. Should we set
collocation=no?

Hans Chr.