RAID cache modules — check if the battery is included and verify cache size. Ship unlocked and with test reports. Firmware must match the server.
Firmware must match server
PRODUCT OVERVIEW
The IBM 5-908 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.
This part is cataloged in the Federal Logistics Information System under NSN 5998-00-484-9360, indicating validated use in U.S. government and defense logistics supply chains.
WHERE IT FITS
CONTROLLER→RAID_CACHE→5-908
NSN:5998-00-484-9360 FSC:5998 — CIRCUIT CARD ASSEMBLY CAGE:09691 — L3HARRIS MAS INC DIV L3HARRIS MAS INC. (CAN)
SPECIFICATIONS
body_style
CYLINDRICAL BUSHING MOUNTED
body_length
1.750 INCHES NOMINAL IN
flat_height
0.220 INCHES NOMINAL IN
shaft_style
ROUND, FLATTED
shaft_length
0.875 INCHES NOMINAL IN
actuator_type
SINGLE SHAFT
body_diameter
2.750 INCHES NOMINAL IN
shaft_diameter
0.250 INCHES NOMINAL IN
mounting_method
STANDARD BUSHING
section_quantity
1
special_features
DEPRESSED INSULATION FOR SNAP ACTION OFF POSITION
first_flat_length
0.344 INCHES NOMINAL IN
NSN
5998-00-484-9360
COMPONENT DIAGRAM
KEY FEATURES
•
Battery-Backed Write Cache Module
•
Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
•
Hot-Plug Capable
TYPICAL APPLICATIONS
Hardware RAID acceleration for enterprise storage
Data protection and parity management
Cache-backed write acceleration
Storage tiering and SSD caching
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT
0.740 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCY
FSC APPLICATION DATA: TEST SET,NAVIGATION,AIRCRAFT
OVERALL HEIGHT
0.740 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCY
FSC APPLICATION DATA: TEST SET,NAVIGATION,AIRCRAFT
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FREQUENTLY ASKED QUESTIONS
What is 5-908?
5-908 is a IBM PCI-X DDR 1.5 GB cache SAS RAID Adapter manufactured by IBM. It is classified as a CONTROLLER (RAID_CACHE).
What parts can replace 5-908?
There are 9 known substitutes for 5-908: 10293243, SM-D-778022, DAA3383A504-105 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5-908?
5-908 is cataloged in the Federal Logistics Information System under NSN 5998-00-484-9360. This indicates validated use in U.S. government and defense supply chains.
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