Description
HPE K2P91A 3.84TB SAS 2.5" SSD
The K2P91A is an HPE 3.84TB drive in the 2.5-inch size, running SAS at 6Gb/s and supplied with its tray already fitted. The flash designation is the detail that explains this part. HPE marks it cMLC, short for consumer multi-level cell, as against eMLC for the enterprise-grade version. Both hold two bits in every cell. What separates them is the endurance each one is rated to deliver. It's built for the 3PAR StoreServ 8000 platform.
Key Features
- 3.84TB of capacity in a single 2.5-inch drive
- SAS interface running at 6Gb/s
- cMLC flash, HPE's consumer multi-level cell designation
- Supplied with its tray attached, ready to slide into a cage
- Listed for the 3PAR StoreServ 8000 platform
- HPE part number K2P91A
Performance and Applications
An array doesn't need every drive working at the same intensity. A 3PAR system tiers its storage, holding the hottest data on the fastest, hardest-wearing drives and pushing the rest down to capacity tiers where writes arrive far less frequently. cMLC drives sit comfortably in that lower tier. You get 3.84TB per bay at a price the eMLC parts never reach, carrying data that gets read regularly and rewritten rarely. Snapshots, archives and reference volumes all fall into that pattern.
Compatibility and Installation
Check the drive against your array model and firmware before ordering, since 3PAR systems validate what goes into a cage. Review your tiering policy as well, because a cMLC drive placed where write-heavy data lands will wear through faster than the tier it was designed for. The tray comes attached, so it slides straight home.
HPE K2P91A 3.84TB SSD for 3PAR Capacity Tiers
For the layer of a 3PAR system where data settles and gets read rather than constantly rewritten, this one is matched to the work. 3.84TB of SAS flash with the tray already on it.
