Recovery Rom - Areca ARC-1880 Series User Manual

APPENDIX
The batteries in the BBM are recharged continuously through a
trickle-charging process whenever the system power is on. The
batteries protect data in a failed server for up to three or four
days, depending on the size of the memory module. Under nor-
mal operating conditions, the batteries last for three years before
replacement is necessary.

Recovery ROM

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RAID controller firmware is stored on the flash ROM and is ex-
ecuted by the I/O processor. The firmware can also be updated
through the RAID controllers PCIe 2.0 bus port or Ethernet port
without the need to replace any hardware chips. During the con-
troller firmware upgrade flash process, it is possible for a problem
to occur resulting in corruption of the controller firmware. With
our Redundant Flash Image feature, the controller will revert back
to the last known version of firmware and continue operating.
This reduces the risk of system failure due to firmware crash.
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