HP 3PAR StoreServ 7450 2-node HP 3PAR StoreServ 7450 Storage Installation Guid - Page 12
I/O Modules, Power Cooling Modules, M6710 I/O Module
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I/O Modules The I/O modules connect the controller nodes to the hard drives using a SAS cable, enabling the transfer of data between the nodes, hard drives, PCMs, and enclosures. The I/O modules are located at the rear of the drive enclosure. There are two I/O modules per enclosure, numbered 0 and 1 from bottom to top (see Figure 6 (page 12) and Figure 7 (page 12)). Figure 6 M6710 I/O Module Figure 7 M6720 I/O Module NOTE: The I/O modules are located in slots 0 and 1 of the HP M6710 and M6720 Drive Enclosure. Power Cooling Modules The PCM is an integrated power supply, battery, and cooling fan. There are two types of PCMs: • The 580 W is used in the drive enclosures and does not include a battery. • The 764 W is used in the 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 8 PCM Numbering for HP 3PAR 7450 Controller Node Enclosures 12 Identifying Storage System Components