74 TroubleshootingSMART ErrorTable 6-4 describes issues related to the Self-Monitoring Analysis and Reporting Technology (SMART).SMART monitors the internal performance of all motors, heads, and physical disk electronics and detectspredictable physical disk failures.NOTE: For information about where to find reports of SMART errors that could indicate hardware failure, see theDell OpenManage Storage Management documentation.A physical disk becomesinaccessible during areconstruction process on aredundant virtual disk that hasa hot spare.The rebuild operation for the inaccessible physical disk starts automatically afterthe reconstruction is completed.A physical disk is taking longerthan expected to rebuild.A physical disk takes longer to rebuild when under high stress. For example, there isone rebuild input/output (I/O) operation for every five host I/O operations.Table 6-4. SMART ErrorProblem Suggested SolutionA SMART error is detected ona physical disk in a redundantvirtual disk.Perform the following steps:1 Force the physical disk offline.2 Replace it with a new physical disk of equal or higher capacity.3 Perform a rebuild.See "Performing a Manual Rebuild of an Individual Physical Disk" on page 67 forrebuild procedures.A SMART error is detectedon a physical disk in anon-redundant virtual disk.Perform the following steps:1 Back up your data.2 Delete the virtual disk.See "Deleting Virtual Disks" on page 67 for information on deleting a virtual disk.3 Replace the affected physical disk with a new physical disk of equal or highercapacity.4 Recreate the virtual disk.See "Setting Up Virtual Disks" on page 58 for information on creating virtual disks.5 Restore the backup.Table 6-3. Physical Disk Failure and Rebuild Issues (continued)Issue Suggested SolutionDell_PERC5_UG.book Page 74 Tuesday, February 13, 2007 6:02 PM
