Datoptic ARC-1680 Series Instrukcja Użytkownika Pobierz pdf (Strona 175)

175

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

The SAS RAID controller rmware is stored on the ash ROM and

is executed by the I/O processor. The rmware can also be up-

dated through the SAS RAID controllers PCIe bus port or Ether-

net port without the need to replace any hardware chips. During

the controller rmware upgrade ash process, it is possible for

a problem to occur resulting in corruption of the controller rm-

ware. With our Redundant Flash Image feature, the controller will

revert back to the last known version of rmware and continue

operating. This reduces the risk of system failure due to rmware

crash.

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