631679-B21 HPE 1GB FBWC Smart Array Module

The 631679-B21 is an internal data connectivity interface module engineered to deliver cost-effective network transformation and enhanced system stability within multi-node server frameworks. Functioning as a high-performance storage acceleration layer, this 1GB Flash-Backed Write Cache (FBWC) module installs directly onto compatible Smart Array P-Series controller boards to govern active data buffers. Utilizing non-volatile flash memory architecture coupled with an external capacitor power source, it preserves volatile data logs during sudden power disruptions to safeguard against unwritten transactions across high-density databases, continuous multi-threaded enterprise workloads, and legacy hardware consolidations. Its fault-isolated layout manages internal bus communication cleanly, shielding core operational paths from signaling latency, packet drops, or single-point-of-failure throughput disruptions during continuous high-availability runtime operations.

Alternative Part Numbers

• 633542-001
• 631679-B21
• 534562-001

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