Compaq ProLiant 1000 ProLiant Server Troubleshooting Guide - Page 73

Hardware Problems • You must follow the server cabling guidelines when configuring your array to implement the best possible cabling solution for your server. Refer to your server-specific user documentation for step-by-step instructions. • Check for cabling configurations that are not supported. Signal integrity errors can be injected into the SCSI bus when an active drive is hot-plugged. • Be sure that a drive is not currently being used to recover from errors, such as media errors or signal integrity errors, to other drives in the array. CAUTION: In extreme cases, when the number of errors is greater than the firmware error recovery is able to sustain, connecting a hot-plug online drive can cause some unrecoverable errors to be reported to the operating system or can cause a complete failure of the array. Refer to your operating system documentation for more information on implications, as well as possible recovery options. IMPORTANT: Before replacing a degraded drive, use Insight Manager 7 (or previous version) to examine the error counters recorded for each physical drive in the array to be sure that such errors are not presently occurring. Refer to the documentation on the Management CD. Tape Drives DLT Drives Use Table 2-12 to troubleshoot Digital Linear Tape (DLT) drive problems. Table 2-12: Tape Drive Problems Problem Server cannot write to tape. Possible Cause Drive is not clean. Tape is not compatible with drive. Possible Solution Clean the drive. Refer to the instructions provided with the drive. Check the tape specifications to be sure that the tapes are designed to work with the drive. continued HP Servers Troubleshooting Guide 2-31