content_image/986007.jpg
## Rename 

Selecting Rename  allows you to modify the name of a storage pool. Enter the new name and click Rename  in the window. 

To rename a storage pool by using the CLI, use the chmdiskgrp  command. Example 6-3 shows how to rename Pool2  to StandardStoragePool . If successful, the command returns no output. 

IBM_2145:ITSO-SV1:superuser>chmdiskgrp -name StandardStoragePool Pool2 IBM_2145:ITSO-SV1:superuser> 

## Modifying threshold 

The storage pool threshold refers to the percentage of storage capacity that must be in use for a warning event to be generated. When thin-provisioned volumes are used that auto-expand (automatically use available extents from the pool), monitor the capacity usage and get warnings before the pool runs out of free extents so that you can add storage. 

Note:  The warning is generated only the first time that the threshold is exceeded by the used-disk capacity in the storage pool. 

The threshold can be modified by selecting Modify Threshold  and entering the new value. The default threshold is 80%. Warnings can be disabled by setting the threshold to 0%. 

The threshold is visible in the pool properties and is indicated with a red bar, as shown in Figure 6-11. 

<img src='content_image/986007.jpg'>

To modify the threshold by using th CLI, use the chmdiskgrp  command. Thresholds can be specified with a percentage of the stor age pool size (as with the GUI) and to the exact size. Example 6-4 shows the warning thres hold that is set to 750 GB for Pool0 . 

IBM_2145:ITSO-SV1:superuser>chmdis kgrp -warning 750 -unit gb Pool0 IBM_2145:ITSO-SV1:superuser> 

