The most important difference between a RAM disk and a hard disk is access speed. The time taken for a hard disk to move its magnetic heads over the spinning disks (much like the arm moving over old vinyl record player) is typically measured in milliseconds (thousandths of a second). Whereas a RAM disk does not have mechanical parts and its access speed is typically measured in nanoseconds (billionths of a second). Access to a RAM disk may be 50 times faster or more than to a hard drive. RamDisk supports a single RAM disk with no backup capability. RamDisk Plus adds multiple disk support, system page file support, and a versatile disk image backup and restore facility. You can manually save the RAM disk s contents to an image file, or have the contents saved automatically when the computer is shutdown. This feature ensures that service and application data stored on the RAM disk can be preserved between system restarts. During the subsequent system start-up, the disk's image is automatically loaded. A "live" RAM disk image may be backed up even with open handles to the volume. A RAM disk viewer lets you load image files as read-only devices. Memory above 4GB can be used on OS-limited platforms. Virtual disks and removable disks are supported. Disks can be created with partition tables or without. RamDisk 9.0 and RamDisk Plus 9.0 can create partitionable RAM disks, which are supported by Volume Managment software. Windows' MMC disk managment snap-in recognizes and manages partitionable RAM disks. They are also compatible with other software such as Partition Magic and Veritas Volume Manager. RamDisk Plus 9.0 also can create and configure non-partitionable RAM disks, which are compatible with RAM disks created by RamDisk and RamDisk Plus version 8.0. RAM disks can be zeroed out upon removal and the disk image file can be preserved upon removal. A new licensing mechanism binds the software to the machine name rather than a system ID. |
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