User`s guide

22 007-4522-003
1: Storage System Overview
Figure 1-16 Dummy Drive Carrier Module
Enclosure Bay Numbering
This section contains information about enclosure bay numbering in the following
sections:
• “Rackmount Enclosure Bay Numbering” on page 22
• “Tower Enclosure Bay Numbering” on page 24
Rackmount Enclosure Bay Numbering
The rackmount enclosure is 4 bays wide and 4 bays high, and the bays are numbered as
follows:
• The disk drive bays, located in front, are numbered 1 to 4 from left to right and 1 to
4 from top to bottom. Drives in bays 1/1 and 4/4 are required for storage system
management; these bays must always be occupied.
• The rear bays are numbered 1 to 5 from right to left.
The location of a disk drive module is identified by combining the column and row
numbers (top and side numbers in Figure 1-20). For example, the disk drive in the upper
left corner of the enclosure is disk 1-1. A module located in the rear of the enclosure is
identified by its bay number. For example, the PSU/cooling module on the far left side
of the enclosure is in bay 5.