Non-Volatile File System: Difference between revisions

Revision as of 12:59, 20 July 2023

Revision as of 16:59, 31 December 2024

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==Background==

===Overview of NVFS===

The NVFS, as claimed by palmOne, is a file system designed to keep all information safe should the battery run out of power. Previous non-flash memory designs would lose all stored data in the event of a power loss. ''NVFS'' is a derivative of [[Flashflash Memorymemory]], which continually stores all data even when no power is applied. palmOne invented NVFS in response to complaints that a handheld's data was destroyed when the battery power ran out. In the past, it was necessary to keep the handheld continuously charged to avoid losing data, since all information was stored in volatile memory.

A similar feature has been adopted by [[Personal digital assistant|PDAs]] running the [[Windows Mobile]] 5.0 [[operating system]], and is named "Persistent Storage".

===Architecture and specifications===

NVFS uses [[NAND flash memory]] technology to retain the handheld's data in the event of a battery swap or if the battery runs out of power. [[Palm, Inc.|palmOne]] claims that Flashflash memory is a plus for the majority of their consumers since many of them do not want to charge the handheld too often, and it consumes less overall power. NVFS uses a brand-new data architecture which might render incompatible some applications which ran very well with non-NVFS handhelds.

===Controversy and unfavorable remarks from power users===