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RAID controller cards temporarily cache data from the host system untilit is successfully written to the storage media. While cached, data canbe lost if system power fails, jeopardizing the data’s permanentintegrity.
RAID caching is a cost-effective way to improve I/Operformance by writing data to a controller’s cache before it is writtento disk. However, in the event of a power or server failure, the writesin cache may be lost.
CacheVault® flash cache protection modulesand battery backup units (BBUs) protect the integrity of cached data bystoring cached data in non-volatile flash cache storage or by providingbattery power to the controller.
CacheVault technology preventsdata loss by powering critical components of the card long enough toautomatically transfer the cached data to NAND flash. Once powerreturns, the data is restored to the cache and normal operation resumes.By using a super-capacitor instead of Lithium-ION batteries, CacheVaulttechnology virtually eliminates hardware maintenance costs associatedwith batteries, lowers total cost of ownership over the life of thecontroller card and provide more environmentally friendly cacheprotection, all while maintaining optimal RAID performance.
• Lower total cost of ownership (TCO) with CacheVault technology byreducing hardware maintenance and disposal issues associated withlithium-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.
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