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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