Cache Protection for RAID Controller Cards

Protect against data loss during power failure

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RAID controller cards temporarily cache data from the host system until it is successfully written to the storage media. While cached, data can be lost if system power fails, jeopardizing the data’s permanent integrity.

RAID caching is a cost-effective way to improve I/O performance by writing data to a controller’s cache before it is written to disk. However, in the event of a power or server failure, the writes in cache may be lost.

CacheVault® flash cache protection modules and battery backup units (BBUs) protect the integrity of cached data by storing cached data in non-volatile flash cache storage or by providing battery power to the controller.

CacheVault technology prevents data loss by powering critical components of the card long enough to automatically transfer the cached data to NAND flash. Once power returns, the data is restored to the cache and normal operation resumes. By using a super-capacitor instead of Lithium-ION batteries, CacheVault technology virtually eliminates hardware maintenance costs associated with batteries, lowers total cost of ownership over the life of the controller card and provide more environmentally friendly cache protection, all while maintaining optimal RAID performance.
  • Lower total cost of ownership (TCO) with CacheVault technology by reducing hardware maintenance and disposal issues associated with lithium-ion batteries
  • Battery backup units allow for higher ambient temperatures
  • Provides additional peace of mind for all MegaRAID® controller cards
  • Enjoy configuration flexibility with many chassis mounting options
  • Receive longer life cache protection

Lifecycle Status


Cache Protection Option MPN & Ordering PN Description/Compatible Controllers
CVPM05 05-50039-00 CacheVault Flash Cache Protection Module for 9460 and 9480 Series
CVPM02 05-50038-00 CacheVault Flash Cache Protection Module for 9361-16i and 9380-8i8e
CVM02 05-25444-00 CacheVault Flash Cache Protection Module for 9361 and 9380 Series
CVM01 LSI00297 CacheVault Flash Cache Protection Module for 9271 and 9266 Series
LSIiBBU09 LSI00279 Battery Backup Unit for MegaRAID SAS 9265, 9266, 9270, 9271, 9285 and 9286 Series.MTBF= 1,900,410 hours (battery not included in calculations)
LSIiBBU08 LSI00264 Battery Backup Unit for MegaRAID SAS 9260, 9261 and 9280 Series. MTBF = 1,900,410hours(battery not included in calculations)
LSIiBBU07 LSI00161 Battery Backup Unit for 8880EM2, 9260-xx, 9261-xx, 9280-xx and 9750-xx. MTBF = 3,257,908hours(battery not included in calculations)
LSIiBBU06 LSI00160 Battery Backup Unit for 8708EM2 and 8704EM2
LSIiBBU05 LSI00183 Battery Backup Unit for 8708ELP, 8704ELP and 8888ELP
BBU-BRACKET-05 LSI00291 Remote Mounting Bracket for LSI BBUs
Remote Cable/Interpose Kit LSI00260 Needed ONLY if remote cable required for LSIiBBU06/07 or connecting LSIiBBU07/08remotelyto 9260-4i or 9260-8i
3ware BBU-MODULE-03 BBU-MODULE-03 Battery Backup Unit for 3ware 9650SE/9590SE/9550SX(U)
3ware BBU-MODULE-04 BBU-MODULE-04 Battery Backup Unit for 3ware 9690SA/9650SE/9590SE/9550SX(U); Includes remote batterymountingkit
3ware BATT-SPARE-02 BATT-SPARE-02 Replacement battery for BBU-MODULE-03 and BBU-MODULE-04


Specification Value
Lifecycle Active
Distrib. Inventory No
Case Study1 i
Errata1 i
Product Brief1 i
Quick Installation Guide5 i
Selection Guide3 i
User Guide7 i
White Papers2 i