Compaq ProLiant 1000 ProLiant Server Troubleshooting Guide - Page 71

Hardware Problems • Do not replace more than one drive at the same time (for example, when the system is off), since the fault tolerance can be compromised. CAUTION: Replacing more than one drive at the same time compromises the fault tolerance. When a drive is replaced, the controller uses data from the other drives in the array to reconstruct data on the replacement drive. If more than one drive is removed, a complete data set is not available to reconstruct data on the replacement drive or drives, and permanent data loss can occur. • Do not turn off a connected hard drive enclosure when the server containing the Smart Array Controller is powered up. Also, do not power up the server before powering up the drive enclosure. CAUTION: Turning off a connected hard drive enclosure when the server containing the Smart Array Controller is powered up may cause the Smart Array Controller to mark the drives in this enclosure as failed. Powering up the server before powering up the drive enclosure may also cause the Smart Array Controller to mark the drives in this enclosure as failed. Permanent data loss can occur. • If POST error message 1786 occurs when the system is powered up after one or more drives have been replaced while the system is powered down, you will be prompted to: PRESS TO BOOT THE SYSTEM AND REBUILD THE REPLACED DRIVE -Or- PRESS TO BOOT THE SYSTEM AND NOT REBUILD THE DRIVES CAUTION: Pressing the F2 key causes permanent data loss to the entire logical drive. Press the F2 key only if all of the drives have been replaced or if complete data loss is desired. HP Servers Troubleshooting Guide 2-29