601775-001 HP MSA2 300-GB 15K 3.5 DP SAS HDD

Description:
Genuine HP MSA2 300GB Serial Attached SCSI (SAS)
15K 3.5-inch 6G Hot-Plug Hard Drive in HP MSA2 drive tray with interposer connector (as pictured )
HP serial number and Genuine HP MSA2 firmware

Part Number(s)
Option Part# AP858A
Spare Part# 601775-001
Assembly Part# 604086-001
Model# ST3300657SS

Note:
For use only in HP StorageWorks Systems
Modular Smart Array Genuine HP MSA2 1040/2040/P2000 Systems only.

Overview:
HP MSA2 / MSA2000 controller enclosures and large form factor expansion enclosures accept unique HP SAS disk drive modules with different firmware and different trays than other HP storage arrays and Proliant servers. The disk drives have SAS interposers attached to the back which convert the native dual port SAS interface to an SCA-40 connector. While this SCA-40 connector has the same shape as a Fibre Channel (FC) connector, the drives are NOT utilizing the FC protocol. If you look closely at the interposer, the circuitry is rather simplistic and no bridge / translator chip is attached. The interposer is, more or less, acting as a signal filter and port relocator to connect to the MSA2's proprietary backplane.