Mylex eXtremeRAID Installation Guide download pdf (Page 45)

DAC1164P Error Messages

775013 C-3

NVRAM Error

With Firmware 5.x, if the BIOS displays a mismatch between the NVRAM

and the Configuration on Disk (COD), no drives will be installed. Normally

this error will not be displayed. If it is, boot and run RAID EzAssist, the on-

board Mylex Disk Array Configuration Utility (see Chapter 4). to recover

from the error. For more information, refer to the RAID EzAssist Installation

Guide and User Manual.

System Reboot or Power Down

Status messages may also be available from LED indicators connected to the

controller. The Cache Dirty indicator is especially important when preparing

to power-down the system.

The DAC1164P controller is a caching controller with 16MB, 32MB, or

64MB of cache memory, 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. It is very important to make sure that all data is written to the

disk before rebooting or powering down the system, or you may lose data. It

is always a good idea to wait for 15 seconds before resetting or rebooting the

system.

If using the 'Cache Dirty' LED indicator, wait 3 seconds after the LED has

gone off before resetting or rebooting the system (the cache battery backup

may also be used to prevent data loss).

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Mylex eXtremeRAID Installation Guide Page 45