Maintaining and Optimizing Windows Vista Systems : ReadyBoost and ReadyDrive

2/5/2011 6:01:33 PM
Windows Vista has several features that affect how disks are used, including the following:
  • Windows ReadyBoost boosts system performance by using USB flash devices as additional sources for caching.

  • Windows ReadyDrive boosts system performance on mobile computers equipped with hybrid drives.

With Windows ReadyBoost, USB flash devices with sufficiently fast memory (flash devices can be read up to 10 times faster than physical disk drives) are used to extend the disk caching capabilities of the computer’s main memory. Using flash devices for caching enables Windows Vista to make random reads faster by caching data on the USB flash device rather than on a disk drive. Because this caching is applied to all disk content, not just the page file or system dynamic link libraries (DLLs), the computer’s overall performance is boosted.

USB flash devices that can be used with Windows ReadyBoost include USB 2.0 flash drives, Secure Digital (SD) cards, and CompactFlash cards. These devices must have sufficiently fast flash memory and be at least 256 MB or larger in size. Windows Vista can use an amount of flash memory equal to twice the amount of physical memory (RAM) on the computer.

When you insert a USB flash device into a USB 2.0 or later port, Windows Vista analyzes the speed of the flash memory on the device. When you click Speed Up My System Using Windows ReadyBoost, Windows Vista extends the computer’s physical memory to the device. The default configuration enables Windows ReadyBoost to reserve all available space on the device for boosting system speed.

To use Windows ReadyBoost with a USB flash device that you either already inserted or that you previously declined to use with Windows ReadyBoost, follow these steps:

Click Start, and then click Computer.

Right-click the USB flash device in the Devices with Removable Storage list, and then choose Properties.

On the ReadyBoost tab, select Use This Device, and then click OK.

For USB flash devices that do not support ReadyBoost, you cannot enable the device. The only option you’ll have is to stop retesting the device when you plug it in. The Stop Retesting This Device When I Plug It In option is selected by default.

If the USB flash drive has both slow and fast flash memory, you will not be able to use the slow flash memory portion of the USB storage device to speed up the computer performance. As a result, you might not see all the memory of the USB device when it is added to your physical memory.

Windows ReadyDrive improves performance on mobile computers equipped with hybrid drives. A hybrid drive is a drive that uses both flash RAM and a physical drive for storage. Because flash RAM is much faster than a physical disk, mobile computers running Windows Vista write data and changes to data to the flash memory first and periodically sync these writes and changes to the physical disk. This approach reduces the spinning of the physical drive and thus saves battery power.

The flash RAM on hybrid drives can be used to provide faster startup and resume from sleep or hibernation. In this case, the information needed for starting or resuming the operating system is written to the flash RAM prior to shutting down, entering sleep, or going into hibernation. When you start or wake the computer, this information is read from the flash RAM.

You do not need to enable ReadyDrive. ReadyDrive is enabled for use automatically on mobile computers with hybrid drives.

Video tutorials
- How To Install Windows 8

- How To Install Windows Server 2012

- How To Install Windows Server 2012 On VirtualBox

- How To Disable Windows 8 Metro UI

- How To Install Windows Store Apps From Windows 8 Classic Desktop

- How To Disable Windows Update in Windows 8

- How To Disable Windows 8 Metro UI

- How To Add Widgets To Windows 8 Lock Screen

- How to create your first Swimlane Diagram or Cross-Functional Flowchart Diagram by using Microsoft Visio 2010
programming4us programming4us