Cost-Effective High-Availability Solutions with HP Instant Capacity on HP-UX

Figure 13 shows the result after the rights seizure.

Figure 13: GiCAP failover after usage rights seized (virtual partition example)

Six usage rights have been seized from the nPartition containing vp1 and vp2, leaving one core

usage right for each cell in db1. As with previous examples, completing the failover is a matter of

activating cores on the failover system. In this case, three cores are activated in vp3 and in vp4 to

run the applications. You can accomplish this several ways. For example, you could use the

following commands:

vp3> icapmodify -a 3

vp4> icapmodify -a 3

Another option is to use a combination of icapmodify and vparmodify commands as long as the

first activation uses icapmodify to increase the number of cores assigned to the nPartition. (The

increase should be for the total number of cores you wish to activate across all virtual partitions of that

nPartition.) This method allows you to issue all commands from the same virtual partition:

vp3> icapmodify -a 6

vp3> vparmodify -d cpu::3 -p vp3

vp3> vparmodify -a cpu::3 -p vp4