Detail Data DR Phase Name PRE Current System Physical Memory 42949672960 -->> This is 40 GB, which is the current running memory size. Memory that is requested to remove 34359738368 -->> This is 32 GB, which you want to remove. ProbeVue Max Pinned Memory tunable value 4294967296 -->> This is 4 GB, which is current maximum pinned memory for ProbeVue. 

In the ROHA solution, it is possible that PowerHA SystemMirror removes memory to a low value, such as in the procedure of Automatic resource release after OS failure . To avoid this situation, consider the following items: 

GLYPH<SM590000> If you want to enable the ProbeVue component, set the maximum pinned memory less or equal to (40% *minimum memory value of one LPAR’s profile). For ex ample, in this case, the minimum memory size is 8 GB, so 40% is 3276.8 MB. 

Therefore, you can set the maximum pinned memory size with the command that is shown in Table 6-9. 

# probevctrl -c max_total_mem_size=3276 Attention: The command "/usr/sbin/bosboot -a" must be run for the change to take effect in the next boot. 

Set it to 3276 MB, which is less than 3276.8 (8 GB*40%). This change takes effect immediately. But, if you want this change to take effect after the next restart, you must run /usr/sbin/bosboot -a  before the restart. 

GLYPH<SM590000> If you do not want the ProbeVue component online, you can turn it off with the command that is shown in Example 6-10. 

# probevctrl -c trace=off Attention: The command "/usr/sbin/bosboot -a" must be run for the change to take effect in the next boot. 

This change takes effect immediately. But, if you want this change to take effect after the next restart, you must run /usr/sbin/bosboot -a  before the restart. 

## 6.4.2 Configuration steps for ROHA 

After finishing all of the preparations and considerations outside of PowerHA SystemMirror, you must configure PowerHA SystemMirror. 

First, you must configure some generic elements for the PowerHA SystemMirror cluster: 

GLYPH<SM590000> Cluster name 

GLYPH<SM590000> Nodes in the cluster 

GLYPH<SM590000> Cluster Aware AIX (CAA) repository disk 

GLYPH<SM590000> Shared volume group (VG) 

GLYPH<SM590000> Application controller 

GLYPH<SM590000> Service IP 

