User manual

Chapter 2: Getting Started
9
5. Click on Write Through to set the disk drive cache to Write Through or Write
Back to set the disk drive cache to Write Back.
6. Repeat steps 4 and 5 for every disk drive attached to your SATA150 TX
series controller card.
7. When you are done making cache settings, click
the OK button. The utility will offer to restart your
system (right).
8. Click Restart now to restart your computer
immediately. Click Don’t Restart if you want to
postpone the restart until later.
Remember that your changes will not take effect until you restart your
computer.
Note
Setting the Write Cache to Write Back improves
performance, because a write to the high-speed cache is
faster than to disk.
Data normally written to disk is first written into the disk
drive’s cache, allowing the system CPU to continue with
other tasks while the disk drive handles writing data from
its cache to the disk.
However, write-back-cache data is lost with a system
power outage or other event where the data has not yet
been saved to disk.
Setting the Write Cache to Write Thru forces the disk drive
to immediately save all writes to the disk.