6 Contents6 Maintaining a Storage Array . . . . . . . . . . 91Routine Maintenance . . . . . . . . . . . . . . . . . . 91Running a Media Scan . . . . . . . . . . . . . . . 91Running a Consistency Check . . . . . . . . . . . 93Resetting a RAID Controller Module . . . . . . . . 94Enabling RAID Controller Module DataTransfer . . . . . . . . . . . . . . . . . . . . . . . 94Resetting Battery Age . . . . . . . . . . . . . . . 94Removing Persistent Reservations . . . . . . . . . 94Synchronizing RAID Controller ModuleClocks . . . . . . . . . . . . . . . . . . . . . . . . 95Locating Physical Disks . . . . . . . . . . . . . . 95Performance Tuning . . . . . . . . . . . . . . . . . . . 95Monitoring Performance . . . . . . . . . . . . . . 96Changing RAID Levels . . . . . . . . . . . . . . . 97Changing Segment Size . . . . . . . . . . . . . . 97Defragmenting a Disk Group . . . . . . . . . . . . 98Troubleshooting and Diagnostics . . . . . . . . . . . . 98Collecting Physical Disk Data . . . . . . . . . . . 98Diagnosing a RAID Controller Module . . . . . . . 99Recovery Operations . . . . . . . . . . . . . . . . . . 100Setting RAID Controller ModuleOperational Mode . . . . . . . . . . . . . . . . . 100Changing RAID Controller ModuleOwnership . . . . . . . . . . . . . . . . . . . . . 101Initializing a Physical Disk . . . . . . . . . . . . . 101Reconstructing a Physical Disk . . . . . . . . . . 102Initializing a Virtual Disk . . . . . . . . . . . . . . 102Redistributing Virtual Disks . . . . . . . . . . . . . 103
