IBM DTCA-24090 Hard Drive Specifications - Page 94

10.9 Write Cache Function Write cache is a performance enhancement whereby the device reports completion of the write command (Write Sectors and Write Multiple) to the host as soon as the device has received all of the data into its buffer. The device assumes responsibility to write the data subsequently onto the disk. While writing data after completed acknowledgment of a write command, soft reset or hard reset does not affect its operation. But power off terminates writing operation immediately and unwritten data are to be lost. | Flush cache, Check power mode, Standby, Standby immediate, Sleep commands and Soft reset are exe- | cuted after completion of flushing cache if write cache is enabled, so completion of flushing cache can be | checked by confirming successful completion of these commamds or Soft reset. For Power Off | Sequence, refer to 5.3.6, " Load/Unload" on page 24. The retry bit of Write Sectors is ignored when write cache is enabled. 86 OEM Specifications of DTCA-2xxxx 2.5 inch H D D