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9.8
Configuring Adaptive Optimization
3PAR System Reporter User’s Guide System Reporter 2.8
CAUTION: You can remove a CPG from a configuration by either specifying a
different CPG in its place or by setting the tier’s CPG to “-” (no CPG). However,
when a CPG is removed from a configuration, all the VV space mapped to LDs in
that CPG remain in that CPG, Adaptive Optimization does not move them to a
different CPG. And since Adaptive Optimization no longer considers that CPG in
its analysis that space will remain there.
Therefore, before removing a CPG from an Adaptive Optimization configuration,
you should first make sure that there is no VV space mapped to that CPG. You can
do so by setting the space for that tier to 0 GiB. Adaptive Optimization will then
move all the VV space out from that CPG to other tiers in that configuration. This
may take a few iterations of execution of that configuration. You can use the LD
space report for that CPG to see when the CPG is empty. You should also make
sure that the CPG is not the default CPG for snapshot and base TPVV allocation
otherwise new VV space may get mapped to that CPG.
NOTE: Please see 3.9.1 Adding InServ Systems on page 3.31 for details on adding
an InServ Storage Server.
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