When enabled, the
hard disk drive
operates in write-back cache mode, in which all the data that gets
written to the drive is first stored in the cache, and then later
written to the disk. Both writes and reads are cached in this case.
When disabled, the HDD operates in write-through cache mode, in which
all data that gets written to the drive is immediately written to the
disks and also stored in the cache. Writes are not cached, but reads
are.
Note: This setting is recommended only for disks
with a backup power supply, it further improves disk performance, but
it also increases the risk of data loss if the disk loses power.
Open
Device Manager, expand Disk drives, right-click on a Disk drive, click
Properties, click the Policies tab, select the Enable advanced
performance check box, and then click OK.
