HP 3PAR StoreServ 7200 2-node Administrator's Manual page 145

NOTE: Two or more tier CPGs must be present in an AO configuration at all times.
If domains are used, all CPGs must be either in the same domain or not in any domain.
A CPG can only belong to one AO configuration.
A CPG can be removed from a tier by specifying a null string "". At least two tiers must remain.
A CPG can be moved and swapped between tiers within the same AO configuration.
A CPG cannot be moved between AO configurations; it must first be removed from one and then
added to the second.
Active use of Adaptive Optimization requires an Adaptive Optimization license. Contact your local
HP representative for information.
A maximum of two tier CPG settings can be modified in a single setaocfg command. This includes
swapping CPGs between tiers or replacing up to two CPGs with new ones. A maximum of one
CPG can be removed from an AO configuration in order to maintain the minimum of two defined
tier CPGs.
For example:
cli% setaocfg -t0cpg tier0_R6_SSD -t1cpg tier1_R5_FC -mode Performance AOCFG_name
where:
-t0cpg is the tier 0 CPG.
tier0_R6_SSD is the tier 0 CPG name.
-t1cpg is the tier 1 CPG.
tier1_R5_FC is the tier 1 CPG name.
-mode <mode> specifies one of the following optimization biases for the AO configuration:
◦
Performance—Move more regions towards higher performance tier.
◦
Balanced—Balance between higher performance and lower cost.
◦
Cost—Move more regions towards lower cost tier.
—name <AOCFG_name> specifies a new name for the AO configuration (up to 31 characters
in length).
In the following example, the optimization bias (that is, the mode) of an AO configuration aocfg1
is changed to Balanced.
CLI% setaocfg -mode Balanced AOCFG_name
In the following example, the tier 1 CPG for AO configuration aocfg2 is set to tier1_R5_FC2.
tier1_R5_FC2 must not already be used in an AO configuration, and the tier 1 CPG for aocfg2
must not already be set. Also, if domains are in use, the domain of R5FCcpg must match the
existing tier CPGs, or have no domain if the other CPGs are not in a domain.
CLI% setaocfg -t1cpg tier1_R5_FC2 aocfg2
In the following example, a CPG is swapped between tier 0 and tier 2:
CLI% setaocfg -t0cpg tier1_R1_SSD2 -t2cpg tier2_R6_NL2 aocfg3
Modifying an Adaptive Optimization Configuration 145