Avago Technologies AcceleRAID 150 - Manual (Page 61)

AcceleRAID Error Messages
Manual No. 775020 C-3
NVRAM Error
With Firmware 4.x, if the BIOS displays a mismatch between the NVRAM
and the COD, no drives will be installed. Normally this error will not be
displayed. If it is, boot and run the RAID EzAssist (previously BIOS)
Configuration Utility (see “BIOS Configuration Utility (RAID EzAssist).”
to recover from the error. For more information, refer to the RAID EzAssist
Configuration Utility User Reference Guide or RAID EzAssist Configuration
Utility Quick Configuration Guide available on CD-ROM.
System Reboot or Power Down
Before you power-down or reboot the system, it is very important to make
sure that all data is written to the disk by waiting a minimum of 15 seconds
before resetting or rebooting the system.
The AcceleRAID is a caching controller with write-back capability. Data
may still be in the cache waiting to be written to the disk drives when the
system reports that a write command was completed.