Dell PowerEdge RAID Controller 4e/DC Firmware release Version: 5B2D
Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).
After installing this firmware and rebooting, a consistency check will automatically begin on RAID 5 and 50 virtual disks with 5 or more physical disks to ensure parity information is correct. The consistency check cannot be terminated and will resume at its last point following a reboot. This consistency check will appear as a Background Initialization but will only perform a consistency check with no data being modified. The consistency check runs in the background, allowing the virtual disks to remain accessible during the check. While this background check is designed to minimize performance impact, some degradation in performance may occur until the check is complete, especially under heavy I/O.