Oct 12 2007

Speed Up Your Hard Disk Performance In Vista By Enabling Write Caching

lightning You can increase the performance of your computers SATA hard drives by enabling Write Caching.

What is Write caching you ask.

When write caching is enabled, when the system sends a write to the hard disk, the logic circuit records the write in its much faster cache, and then immediately sends back an acknowledgement to the operating system saying, in essence, “all done!” The rest of the system can then proceed on its merry way without having to sit around waiting for the actuator to position and the disk to spin, and so on. This is called write-back caching, because the data is stored in the cache and only “written back” to the platters later on.

Write-back functionality of course improves performance. There’s a catch however. The drive sends back saying “all done” when it really isn’t done–the data isn’t on the disk at all, it’s only in the cache. The hard disk’s logic circuits begin to write the data to the disk, but of course this takes some time. The hard disk is using a variant of that old “the check is in the mail” trick you might hear when you call someone to remind them of that loan they were supposed to pay back three weeks ago. (Read more from the Pcguide)

Here’s how to enable it. (Caution this should not be used for external drives.) And you also have a UPS installed.

  1. Click the Start Orb and start typing Device Manager in the search box.
  2. Click Device Manager under the Programs section at the top.
  3. Approve the UAC if prompted.
  4. Click the small + next to Disk Drives.
  5. Right click the hard drive and choose Properties.
  6. Click the Policies tab.
  7. Put a checkmark in Enable Write Caching on the Disk.
  8. Put a checkmark in Enable Advanced Performance. (This option enables extremely aggressive write caching, which can speed up drive access but also cause you to lose data if the power goes out suddenly.)
  9. Click Ok and your finished.

To see Screen shots for the process, Click the Read the rest of this entry link.

1. Click the Start Orb and start typing Device Manager in the search box.

2. Click Device Manager under the Programs section at the top.

1

3. Approve the UAC if prompted.

2

4. Click the small + next to Disk Drives.

3

5. Right click the hard drive and choose Properties.

4

6. Click the Policies tab.

7. Put a checkmark in Enable Write Caching on the Disk.

8. Put a checkmark in Enable Advanced Performance. (This option enables extremely aggressive write caching, which can speed up drive access but also cause you to lose data if the power goes out suddenly.)

5

9. Click Ok and your finished.

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