Editing a common provisioning group – HP 3PAR Operating System Software User Manual
Page 170
Editing a Common Provisioning Group
To edit a Common Provisioning Group (CPG):
1.
Access the CPGs tab.
2.
Right-click the CPG you wish to edit.
3.
In the menu that appears, click Edit.
The Edit CPG wizard appears.
Step 1. General
1.
Name - Enter a new name for the CPG (31 character maximum).
2.
Growth Increment* - Click the Enabled checkbox, enter the appropriate value, and click the
unit list (MiB, GiB, TiB)
3.
Growth Warning* - Click the Enabled checkbox, enter the appropriate value, and click the
unit list (MiB, GiB, TiB).
4.
Growth Limit* - Click the Enabled checkbox, enter the appropriate value, and click the unit
list (MiB, GiB, TiB).
5.
Device Type - Select FC for Fibre Channel drives, NL for Nearline drives, or SSD for Solid State
drives.
6.
Device RPM - Select the appropriate speed or <default>.
NOTE:
The Device RPM number does not represent a rotational speed for the drives without
spinning media (SSD). It is meant as a rough estimation of the performance difference between
the drive and the other drives in the system. For FC and NL drives, the number corresponds
to both a performance measure and actual rotational speed. For an SSD drive, the number is
to be treated as relative performance benchmark that takes into account in I/O per second,
bandwidth, and the access time.
7.
RAID Type - Select the RAID type for the volume.
NOTE:
HP strongly recommends RAID 6 for high capacity Nearline drives.
8.
Set Size - Select the set size.
9.
If you wish to configure the CPG's allocation settings and list of disks, select Show advanced
options panel(s).
10. Click Next to configure Allocation Settings (if enabled), or click Finish.
*Appears only if the Show advanced options panel(s) is selected.
Step 2. Allocation Settings
1.
From the Availability list, select Cage (default), Port, or Magazine.
2.
From the Step Size list, select default, 32, 64, 128, 256, or 512 KiB. The default value depends
on raid type and device type used. If FC or NL drives are used, the step size defaults to 256
KiB for RAID 0 and RAID 1, and 128 KiB for RAID 5. If SSD drives are used, the step size
defaults to 32 KiB for RAID 0 and RAID 1, and 64 KiB for RAID 5. For RAID 6, the default is
a function of the set size.
3.
From the Preferred Chunklets list, select Fast (default) or Slow.
4.
Click Next to use the Disk Filter (if enabled), or click Finish.
Step 3. Disk Filter
The Disk Filter displays the physical disks used. Pattern displays the parameters of the disks used.
To modify the list of disks used:
1.
Click the Filter icon.
2.
See
for details.
170
Working with Common Provisioning Groups