RAID cache modules — check if the battery is included and verify cache size. Ship unlocked and with test reports. Firmware must match the server. Key checks: Ship with test reports. Ship UNLOCKED.
Firmware must match server
PRODUCT OVERVIEW
The HITACHI 3284394-B is a Battery-Backed Write Cache pack, designed for enterprise RAID controllers in enterprise servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as enterprise servers remain widely deployed.
WHERE IT FITS
CONTROLLER→RAID_CACHE→3284394-B
SPECIFICATIONS
Part Number
3284394-B
Manufacturer
HITACHI
Capacity
128GB
COMPONENT DIAGRAM
KEY FEATURES
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Battery-Backed Write Cache Module
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Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
•
Hot-Plug Capable
TYPICAL APPLICATIONS
Server memory expansion for virtualization workloads