Compaq ProLiant 6400R Compaq ProLiant 6400R Servers - Page 109

3-42 Compaq ProLiant 6400R Maintenance and Service Guide Table 3-18 ADU Diagnostic Messages continued Message Description Unrecoverable read error Read parity errors were detected during the attempt to read the same data from both sides of mirrored memory. Data loss will occur. WARNING - Drive Write Cache is enabled on X Drive has its internal write cache enabled. The drive may be a third-party drive, or the operating parameters of the drive may have been altered. The condition may cause data corruption if power to the drive is interrupted. Warning bit detected A monitor and performance threshold violation may have occurred. The status of a logical drive may not be OK. Write memory error Data could not be written to cache memory. This typically means that parity error was detected while writing data to cache. This could be caused by an incomplete connection between the cache and controller. This is not a data loss circumstance. Wrong Accelerator Either the board was replaced in the wrong slot or placed in a system that was previously configured with another board type. Included with this message is one indicating the type of adapter sensed by ADU and one indicating the type of adapter last configured in EISA nonvolatile RAM. Recommended Action Replace the array accelerator board. Replace the drive with one supplied by Compaq, or restore the operating parameters of the drive. Check the other error messages on the diagnosis screen for an error. With power to the system turned off, verify that the cache board is fully connected to the controller. Check the diagnosis screen for other error messages. Run the System Configuration Utility to update the system configuration.