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Appendix A
Hardware Components and LEDs
51
Drive Enclosure Components and LEDs
A drive enclosure can be connected to a controller enclosure or to another drive
enclosure to provide additional disk storage capacity. Table A-5 describes the drive
enclosure components.
The components and LEDs on the front of a drive enclosure are the same as on a
controller enclosure; see Figure A-1 and Table A-2.
Table A-5
Drive Enclosure Components
Description
Quantity
Expansion (I/O) module
1 or 2
1
1 Air-management system drive blanks or I/O blanks must fill empty slots to maintain optimum airflow through the chassis.
SAS or SATA drive module
2–12 per enclosure
AC power and cooling module
2 per enclosure
3-Gbps, 4-lane SAS In port
1 per expansion module
3-Gbps, 4-lane SAS Out port
1 per expansion module
Service port (RS-232 micro-DB9)
1 per expansion module