HP Instant Capacity Version 10.x User Guide (762794-001, March 2014)

Authorizing TiCAP
To utilize the available temporary capacity to activate cores in the absence of usage rights, you
can use the icapmodify with the -t option along with either the -a or the -s option. When
the -s option is specified, the number of cores entered must be greater than the current active
cores in the partition. The following example illustrates how to utilize the temporary capacity using
the -t option:
# icapmodify -a 1 -t
8 core units are now active
Preauthorizing TiCAP
Core activations can be implicitly preauthorized to use temporary capacity when necessary. You
can use the following command to turn on temporary capacity preauthorization:
icapmodify -T on
This enables all further activations (using icapmodify -a) to use temporary capacity without
specifying the -t option. This is useful during partition reboots and when you want to use TiCAP
with the vparmodify command.
To stop the TiCAP preauthorization, use the following command:
icapmodify -T off
NOTE: TiCAP preauthorization can be enabled or disabled only from the Onboard Administrator.
Table 10 TiCAP Preauthorization usage matrix
Partition state after
operation completed
Example: Partition
state before
operationComments
When to use
it?Operation
TiCAP
Preauthorisation
flag -T (on/off)
Partition
Type
Total core usage
rights=4
Total core usage
rights =4
nPAR will
boot up
If sufficient
RTUs are not
Power-on/bootONnPAR
Committed core
usage rights =4
Committed core
usage rights=4
using
RTUs only
or using
available to
boot nPAR with
IA cores and
Available core usage
rights=0
Available core
usage rights=0
both
TiCAP
user want to
boot/power-on
balance
and RTUs.
nPAR using
TiCAP
balance.
Total TiCAP
balance=10 hours
Total cores=8
Total TiCAP
balance=10 hours
Total cores=8
Actual Active=8Actual Active=6
Intended Active=8Intended Active=8
Cores using TiCAP=4Cores using
TiCAP=2
Total core usage
rights=6
Total core usage
rights=6
nPAR will
boot up
If sufficient
RTUs are
Power-on/bootOFFnPAR
Committed core
usage rights =6
Committed core
usage rights =6
with cores
for which
RTUs are
available.
available to
boot nPAR with
IA cores or
user want to
Available core usage
rights=0
Available core
usage rights=0
TiCAP
balance
boot/power on
nPAR without
using TiCAP
balance.
Total TiCAP
balance=10 hours
Total cores=8
Total TiCAP
balance=10 hours
Total cores=8
will not be
used.
Actual Active=6Actual Active=8
Intended Active=8Intended Active=8
Cores using TiCAP=0Cores using
TiCAP=2
104 Using iCAP on HP Integrity Superdome 2