What is FBWC?
FBWC stands for Flash based or flash backed write cache, this hardware is compatible with smart array controllers & also built in with a Super Capacitor. The main function of this hardware is to back up the data which the DRAM contains and restore it when it needed vice/versa.
To do this, for example the server had shut down improperly. This is the scenario of FBWC. The Super Capacitor give its stored power to function the entire hardware of FBWC automatically. The FBWC prompts on the FPGA to copy the data contained in the DRAM to its cache module.
On the next power up, the FPGA restores the cache by moving the data from the flash memory to DRAM. After the cache has been restored to the DRAM, the smart array controller verifies that the data has been restored correctly, if it’s verified, the data will be sent to the disk drive.
LINK: http://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c02231971
FBWC stands for Flash based or flash backed write cache, this hardware is compatible with smart array controllers & also built in with a Super Capacitor. The main function of this hardware is to back up the data which the DRAM contains and restore it when it needed vice/versa.
To do this, for example the server had shut down improperly. This is the scenario of FBWC. The Super Capacitor give its stored power to function the entire hardware of FBWC automatically. The FBWC prompts on the FPGA to copy the data contained in the DRAM to its cache module.
On the next power up, the FPGA restores the cache by moving the data from the flash memory to DRAM. After the cache has been restored to the DRAM, the smart array controller verifies that the data has been restored correctly, if it’s verified, the data will be sent to the disk drive.
LINK: http://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c02231971