HPE 1GB P-Series Smart Array Flash Backed Write Cache (631680-B21)

The HPE 1GB P-Series Smart Array Flash Backed Write Cache (FBWC) Module (HPE Option Part Numbers: 631679-B21, 631680-B21 / Spare Part Number: 633542-001) is an enterprise storage controller cache module designed to accelerate write performance and ensure data protection on HPE ProLiant Gen8 servers. Featuring 1GB of DDR3 cache memory, this module buffers incoming write requests to significantly reduce write latency and optimize IOPS performance across RAID storage arrays. 

Unlike traditional Battery Backed Write Cache (BBWC) units that rely on temporary battery power to retain cached data during power loss, FBWC technology uses supercapacitors to quickly transfer dirty cache data from volatile DRAM to non-volatile flash memory in the event of a power outage. This flash-based architecture eliminates the need for battery replacements and ensures permanent data retention without time degradation during prolonged power loss. 

Available from DataDive, your trusted Server Parts Supplier in Qatar, this original HPE 1GB Smart Array FBWC module is available in our Server Components collection, ideal for upgrading Smart Array RAID controller throughput, ensuring write-cache data integrity, replacing depleted cache units, and accelerating database and virtual machine write operations across HPE ProLiant servers. 

Key Features:

• 1GB DDR3 write cache capacity speeds up array write performance and improves storage IOPS

• Flash Backed Write Cache (FBWC) technology secures cached data indefinitely during power loss

• Uses long-life supercapacitors instead of batteries, removing routine battery maintenance cycles

• Integrates directly onto HPE P-Series Smart Array controllers for plug-and-play installation

• Crucial for enabling advanced RAID controller features including RAID 5, RAID 6, and write-back caching 

Technical Specifications:

• Brand: HPE (Hewlett Packard Enterprise)

• HPE Option Part Numbers: 631679-B21, 631680-B21

• HPE Spare Part Number: 633542-001

• Memory Capacity: 1 GB

• Memory Technology: DDR3 SDRAM

• Backup Technology: Flash Backed Write Cache (FBWC) with Supercapacitor Backup

• Data Protection Period: Indefinite (Transfers cache to non-volatile flash memory)

• Form Factor: Plug-in Daughter Card / Module

• Dimensions: 10.67cm x 15.75cm x 5.61cm

• Weight: Approx. 230 g

• RAID Controller Compatibility: Compatible with HPE Smart Array P-Series Controllers including:

• Smart Array P222

• Smart Array P420

• Smart Array P421

• Smart Array P822

• System / Server Compatibility: Compatible with HPE ProLiant Gen8 Rack/Tower Servers including DL160 Gen8, DL360e Gen8, DL360p Gen8, DL380e Gen8, DL380p Gen8, DL385p Gen8, DL560 Gen8, and ML350p Gen8