HP 3PAR StoreServ 7450 4-node HP 3PAR StoreServ 7450 Storage Installation Guid - Page 9

Identifying Storage System Components, Understanding Component Numbering, Hard Drive Numbering

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2 Identifying Storage System Components NOTE: The illustrations in this chapter are examples only and may not accurately represent your storage system configuration. Understanding Component Numbering Due to the large number of potential configurations, component placement and internal cabling is standardized to simplify installation and maintenance. System components are placed in the rack according to the principles outlined in this chapter, and are numbered according to their order and location in the cabinet. The storage system can include the following types of drive and node enclosures: • The HP M6710 Drive Enclosure (2U24) holds up to 24, 2.5-inch small form factor (SFF) Serial Attached SCSI (SAS) hard drives, arranged vertically in a single row at the front of the enclosure (numbered 0 to 23). The back of the enclosure contains two 580 W power cooling modules (PCMs) and two I/O modules. Figure 1 (page 9) shows the 2U24 drive enclosure, and also applies to the StoreServ 7450. • The HP M6720 Drive Enclosure (4U24) holds up to 24, 3.5-inch large form factor (LFF) SAS hard drives, arranged horizontally with four columns of six hard drives at the front of the enclosure (numbered 0 to 23). The back of the enclosure contains two 580 W PCMs and two I/O modules. Figure 2 (page 10) shows and applies only to the 4U24 drive enclosure. • The HP 3PAR StoreServ 7450 controller enclosures hold up to 24, 2.5-inch SFF SAS hard drives, arranged vertically in a single row at the front of the enclosure (numbered 0 to 23). The back of the enclosure contains two 764 W PCMs and two controller nodes. Hard Drive Numbering There are two types of drive enclosures. The maximum number of supported drive enclosures varies based on the model and the number of nodes. Hard drives are mounted on a drive carrier or magazine and are located at the front of the enclosures. • 2.5-inch SFF drive numbering Figure 1 HP M6710 Drive Enclosure (2U24) • 3.5-inch LFF drive numbering Understanding Component Numbering 9

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2 Identifying Storage System Components
NOTE:
The illustrations in this chapter are examples only and may not accurately represent your
storage system configuration.
Understanding Component Numbering
Due to the large number of potential configurations, component placement and internal cabling is
standardized to simplify installation and maintenance. System components are placed in the rack
according to the principles outlined in this chapter, and are numbered according to their order
and location in the cabinet.
The storage system can include the following types of drive and node enclosures:
•
The HP M6710 Drive Enclosure (2U24) holds up to 24, 2.5-inch small form factor (SFF) Serial
Attached SCSI (SAS) hard drives, arranged vertically in a single row at the front of the enclosure
(numbered 0 to 23). The back of the enclosure contains two 580 W power cooling modules
(PCMs) and two I/O modules.
Figure 1 (page 9)
shows the 2U24 drive enclosure, and also
applies to the StoreServ 7450.
•
The HP M6720 Drive Enclosure (4U24) holds up to 24, 3.5-inch large form factor (LFF) SAS
hard drives, arranged horizontally with four columns of six hard drives at the front of the
enclosure (numbered 0 to 23). The back of the enclosure contains two 580 W PCMs and two
I/O modules.
Figure 2 (page 10)
shows and applies only to the 4U24 drive enclosure.
•
The HP 3PAR StoreServ 7450 controller enclosures hold up to 24, 2.5-inch SFF SAS hard
drives, arranged vertically in a single row at the front of the enclosure (numbered 0 to 23).
The back of the enclosure contains two 764 W PCMs and two controller nodes.
Hard Drive Numbering
There are two types of drive enclosures. The maximum number of supported drive enclosures varies
based on the model and the number of nodes.
Hard drives are mounted on a drive carrier or magazine and are located at the front of the
enclosures.
•
2.5-inch SFF drive numbering
Figure 1 HP M6710 Drive Enclosure (2U24)
•
3.5-inch LFF drive numbering
Understanding Component Numbering
9