3PAR InForm® OS 2.3.1 CLI Administrator's Manual (320-200180 Rev B, February 2010)

7.6
Common Provisioning Group CLI Commands
3PAR InForm CLI Administrator’s Manual InForm OS Version 2.3.1
■ Chunklets in the same row should be from different physical disks. In other words, a
physical disk should not appear twice in the same row.
■ Chunklets should belong to a disk that is connected through the primary path to the logical
disk’s owner node.
■ The growth increment is limited to 40 chunklets.
■ The system should use as many physical disks as possible.
■ The load on all physical disks should be balanced.
■ The system should use the largest possible row size.
7.3 Common Provisioning Group CLI Commands
Use the following CLI commands to manage Common Provisioning Groups (CPGs):
■ showcpg - display CPGs in the system.
■ createcpg - create CPGs.
■ setcpg - modify existing CPGs
■ compactcpg - consolidate logical disk space in CPGs into as few logical disks as possible.
■ removecpg - remove CPGs from the system or remove specific logical disks from CPGs.
7.4 Creating a Common Provisioning Group
 To create a CPG, issue the createcpg -aw <percent> -sdgs <size> -sdgl <size>
-sdgw <size> -t <RAID_type> <CPG_name>
command, where:
◆ -aw <percent> is the percentage of used snapshot space and administration space
that will generate a warning alert. If 0 (default) is specified, alert generation is disabled.
◆ -sdgs <size> is the amount of logical disk storage created during each autogrow
operation. Refer to Table 7-1 on page 7.4 for the minimum default growth sizes per
number of nodes.
◆ -sdgl <size> is the growth limit which cannot be exceeded during autogrow
operations. If 0 (default) is specified, no limit is enforced.