Cache protection uses solid-state NAND flash memory
Keywords:cache protection? NAND? flash memory?
"Traditionally, data in write cache has been protected from power and server failures using lithium-ion battery backup units that require costly and time consuming hazardous shipping and disposal," said Brent Blanchard, director of worldwide channel sales and marketing, LSI. "CacheVault technology provides customers running small data centers or remote serverswhere support staff may not be immediately availablewith persistent, non-volatile cache protection that is more environmentally friendly and offers a lower total cost of ownership over the life of the MegaRAID controller."
CacheVault technology is powered by a super capacitor that keeps the electrical current running while DRAM cache memory is written to NAND flash memory during a power or server failure. When power is restored, the DRAM is recovered from flash and the workflow resumes without loss of data.
Built on LSI MegaRAID 6Gb/s SATA+SAS controller cards, the MegaRAID CacheVault (CV) series includes the MegaRAID SAS 9260CV-4i controller with four internal ports priced at $640 and the MegaRAID SAS 9260CV-8i with eight internal ports priced at $850. The low-profile MD2 form factor controllers feature the 800MHz LSISAS2108 RAID-on-Chip IC, 512MB DDRII cache memory and x8 PCI Express 2.0 host interface.
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