Activating the On/Off CoD resources On/Off CoD resources are activated by the HMC  chcod  command. Table 6-20 shows the  commands that PowerHA SystemMirror uses to assign the On/Off CoD resource to one  server. You do not need to run these commands. Tip:  The  chcod  commands are given in Table 6-20 as examples, but it is not necessary for  the user to run these commands. These commands are embedded in to the ROHA run  time, and run as part of the ROHA acquisition and release steps. Note:  For acquiring the Power Enterprise Pool and the On/Off CoD resources, every  amount of memory resources is expressed in MB but aligned in GB of memory (for  example, 1024 or 4096), and every number of processing units is aligned on the whole  upper integer. All Power Enterprise Pool and On/Off CoD resources that are acquired are in the CEC’s  free pool, and these are automatically added to the target LPAR by using DLPAR. DLPAR resources are allocated by using the HMC  chhwres  command. Table 6-21 shows the  commands that PowerHA SystemMirror uses to assign resources from the server’s free pool  to one LPAR. You do not need to run these commands. Tip:  The  chhwres  commands are given in Table 6-21 as examples, but it is not necessary  for the user to run these commands. These commands are embedded in to the ROHA run  time, and run as part of the ROHA acquisition and release steps. For shared processor partitions in a shared processors pool that is not the default pool, it  might be necessary to adjust the maximum processing units of the shared processor pool. To  do so, use the operation that is shown in Example 6-11, which uses the HMC  chhwres command. The enablement of this adjustment is authorized by a tunable.  Example 6-11 shows the command that PowerHA SystemMirror uses to change the shared  processor pool’s maximum processing units. You do not need to run this command. Example 6-11 DLPAR CLI from HMC chhwres -m <cec> -o s -r procpool --poolname <pool> -a max_pool_proc_units=<pu> 206  IBM PowerHA SystemMirror V7.2.3 for IBM AIX and V7.2.2 for Linux Table 6-21 Assigning resources from the server’s free pool to target LPAR Allocating the DLPAR resources Dedicate Memory chhwres -m <cec> -p <lpar> -o a -r mem -q <mb_of_memory> Dedicate CPU chhwres -m <cec> -p <lpar> -o a -r proc --procs <cpu> Shared CPU chhwres -m <cec> -p <lpar> -o a -r proc --procs <vp> --proc_units <pu> Memory chcod -m <cec> -o a -c onoff -r mem -q <mb_of_memory> -d <days> CPU chcod -m <cec> -o a -c onoff -r proc -q <cpu> -d <days> Table 6-20 Acquiring On/Off available resources