Toshiba Qosmio G35-AV660 User Guide - Page 240
Enable write cache, MBR Protection, the master boot record
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240 Using the TOSHIBA RAID Utility TOSHIBA RAID Console Utility ❖ Enable write cache-During mirroring, data is copied from the computer's hard disk to the secondary internal hard disk. ❖ If write caching is disabled, data is copied from the computer's hard disk to the secondary internal hard disk one piece at a time. ❖ If write caching is enabled, data is copied from the computer's hard disk to a temporary storage area (write cache). Then, the data is sorted and written to the secondary internal hard disk. ❖ The hard disk drive's performance improves when write cache is enabled. ❖ MBR Protection-Protects the master boot record on your computer's hard disk by prohibiting data from being written onto the master boot record data area. ❖ The master boot record is a special data area on the computer's hard disk which is read whenever the operating system is started. It is recommended that you enable MBR Protection. If the master boot record of the primary internal hard disk is lost or damaged, the operating system is unable to start. This would result in data loss and your hard drive would need to be rebuilt. NOTE MBR Protection can only be enabled if the RAID-1 array is designated as the boot drive.