HP 3PAR Management Console 4.5.1 Software User Guide

25 Managing Data Allocation
The Layout Grid Manager allows you to view layout grids showing patterns of virtual volume, CPG,
logical disk, and physical disk usage. These grids can be used to monitor resource allocation.
NOTE: Logical disk information only appears if you have set your preferences in the HP 3PAR
Management Console to display logical disk information. See “Setting Global Preferences”
(page 512).
The following figure describes the structure of each layout grid:
Table 1 Layout Grid
DescriptionItem
List of all physical disks1
10 chunklet marker2
30 chunklet marker3
1 cell = 1 chunklet = 256 MB4
All types of chunklet grid screens share the same basic features:
• The far left column lists all physical disks in the storage server using the format:
<cage_ID>:<magazine_position>:<disk_position>
◦ <cage_ID> – Can be 0 (left side of the drive chassis) or 1 (right side of the drive chassis).
◦ <magazine_position> – Can be 0, 1, 2, 3, or 4.
◦ <disk_position> – Can be 0, 1, 2, 3, or 4, where 0 is the position closest to the backplane.
• Each row represents the storage space of the disk indicated in the left column, with each cell
in the grid representing one chunklet, or 256 MB.
• Markers indicating the quantity of chunklets in multiples of 10 appear along the top of the
grid.
Viewing Layout Information for All Systems in the Layout Grid Manager
To view layout information for all connected HP Storage Systems:
1. In the Manager Pane, select Layout Grid.
2. In the Management Tree, select Storage Systems.
356 Managing Data Allocation