A partition, so far, is just a set of
parameters which may or may not differ from the default set. To
let a partition relate to a part of the
dCache, links are used. Each link may be assigned to exactly
one partition. If not set, or the assigned
partition doesn’t exist, the link defaults to
the default partition.
psu set link [<linkName>] -section=<partitionName> [<other-options>...]
Whenever this link is chosen for pool selection, the associated parameters of the assigned partition will become active for further processing.
Warning
Depending on the way links are setup it may very well happen
that more than just one link is triggered for a particular
dCache request. This is not illegal but leads to an
ambiguity in selecting an appropriate dCache
partition. If only one of the selected
links has a partition assigned, this
partition is chosen. Otherwise, if
different links point to different
partitions, the result is indeterminate.
This issue is not yet solved and we recommend to clean up the
poolmanager configuration to eliminate links with the same
preferences for the same type of requests.