( Unless you're automatically saving the disk image, of course.) Some users say that storing files on a RAM disk speeds up browsing, too moving your caches to RAM keeps needless writes off of your SSDs and HDDs. Many people use RAM disks even to store their Temporary Internet files, since a RAM disk's volatile nature wipes the data when the computer shuts down. To change path of the system folder called TEMP, we have to go on Control Panel > System: Common RAMDisk usageĪ first good usage of a RAMDisk is to redirect TEMP system folder, on Windows, to the new RAMDisk volume (for example R:\) a recommended size for a RAMDisk, for this purpose, is at least 1GB. This is, in general, a weakness ( the data must periodically be backed up to a persistent-storage medium to avoid loss), but is sometimes desirable: for example, when working with a decrypted copy of an encrypted file.Īpart from the risk of data loss, the major limitation of RAM drives is their limited capacity, which is constrained by the amount of RAM (in gigabytes) within the machine. Disadvantages of a RAMDiskīecause the storage is in RAM, it is volatile memory, which means it will be lost in the event of power loss, whether intentional ( computer reboot or shutdown) or accidental ( power failure or system crash). It is sometimes referred to as a "virtual RAM drive" or "software RAM drive" to distinguish it from a "hardware RAM drive" that uses separate hardware containing RAM, which is an old type of battery backed solid-state drive.
RAM drives can access data with only the memory address of a given file, with no movement, alignment or positioning necessary.Ī RAM drive ( also called a RAM disk) is a block of RAM ( primary storage or volatile memory) that a computer's software is treating as if the memory were a disk drive ( secondary storage).
A physical hard drive or optical media, such as CD-ROM, DVD, and Blu-ray must move a head or optical eye into position and tape drives must wind or rewind to a particular position on the media before reading or writing can occur.
File access time is greatly reduced since a RAM drive is solid state ( no mechanical parts).
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