Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/O2000 for Orac - Page 193

6-14 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide Upgrading Oracle8i Server The design of the PDC/O2000 is tightly integrated with Oracle8i Server. Significant changes in Oracle8i Server will likely affect the operation of the cluster. Before upgrading to any new release of Oracle8i Server, consult your Compaq and Oracle service representatives. Make sure that the new release is certified and supported on the PDC/O2000, and get assistance to determine which procedure you should follow to perform the upgrade properly. Managing Changes to Shared Storage Components Replacing a Failed Disk At some point, you might need to replace a failed drive in an RA4000 Array or RA4100 Array. It is assumed you are employing RAID levels 0, 1, 0+1, 4, or 5 for all devices in the storage array. IMPORTANT: If the failed drive is not part of a fault-tolerant drive array you can lose some or all of the data on the failed drive. With RAID employed, the effects of replacing a drive are felt only by the storage subsystem. The operating system and Oracle are unaware of the activity. The removal of a drive in an RA4000 Array or RA4100 Array must follow certain rules are that interpreted by reading the LEDs on the disk drive. Before proceeding, locate the information in the Compaq StorageWorks RAID Array 4000 User Guide or the Compaq StorageWorks RAID Array 4100 User Guide that describes the conditions under which a drive can be removed. Once you have determined it is safe to remove the drive, open both latches on the drive tray and remove the drive from the drive bay. Put the replacement drive into the drive bay and snap the latches in place. CAUTION: Failure to follow the rules described in the Compaq StorageWorks RAID Array 4000 User Guide or the Compaq StorageWorks RAID Array 4100 User Guide can result in loss of data.