Figure 6 I/O Module Numbering for HP M6710 (2U) and HP M6720 (4U) Drive Enclosures
NOTE: The I/O modules are located in slots 0 and 1 of the HP M6710 and M6720 drive
enclosures.
Power Cooling Modules
The PCM is an integrated power supply, battery, and cooling fan. There are two types of PCMs:
• The 580 W PCM is used in drive enclosures and does not include a battery.
• The 764 W PCM is used in node enclosures and includes a replaceable battery.
The PCMs are located at the rear of the storage system, and on the sides of the enclosure. There
are two PCMs per enclosure. The PCMs are numbered 0 and 1 from left to right.
Figure 7 PCM Numbering
In the HP M6720 Drive Enclosure, the two PCMs are located diagonally from one another. The
remaining PCM slots are blank. See Figure 8 (page 15)).
14 Identifying Storage System Components
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