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- QNX4FS abstract "QNX4FS is an extent-based file system used by the QNX4 and QNX6 operating systems.As the file system uses soft updates, it remains consistent even after a power failure, without using journaling. Instead, the writes are carefully ordered and flushed to disk at appropriate intervals so that the on-disk structure always remains consistent, no matter if the operation is interrupted. However, unflushed changes to the file system are nevertheless lost, as the disk cache is typically stored in volatile memory. This design has a considerable performance gain over journaling, by just bypassing that step.Another notable property of this file system is that its actual metadata, like inode information and disk bitmaps, are accessible in the same way as any other file on the file system (as /.inodes and /.bitmap, respectively). This is consistent with QNX's (in fact, Plan 9 from Bell Labs's, or historically Unix's) philosophy that "everything is a file".".
- QNX4FS wikiPageExternalLink www.qnx.com.
- QNX4FS wikiPageExternalLink QNX4.
- QNX4FS wikiPageExternalLink partition_types-1.html.
- QNX4FS wikiPageID "648566".
- QNX4FS wikiPageLength "1441".
- QNX4FS wikiPageOutDegree "13".
- QNX4FS wikiPageRevisionID "572125488".
- QNX4FS wikiPageWikiLink Category:Disk_file_systems.
- QNX4FS wikiPageWikiLink Everything_is_a_file.
- QNX4FS wikiPageWikiLink File_system.
- QNX4FS wikiPageWikiLink Hard_disk.
- QNX4FS wikiPageWikiLink Hard_disk_drive.
- QNX4FS wikiPageWikiLink Inode.
- QNX4FS wikiPageWikiLink Journaling_file_system.
- QNX4FS wikiPageWikiLink Page_cache.
- QNX4FS wikiPageWikiLink Plan_9_from_Bell_Labs.
- QNX4FS wikiPageWikiLink Power_failure.
- QNX4FS wikiPageWikiLink Power_outage.
- QNX4FS wikiPageWikiLink QNX.
- QNX4FS wikiPageWikiLink Soft_updates.
- QNX4FS wikiPageWikiLink Unix_philosophy.
- QNX4FS wikiPageWikiLink Volatile_memory.
- QNX4FS wikiPageWikiLinkText "QNX4FS".
- QNX4FS hasPhotoCollection QNX4FS.
- QNX4FS wikiPageUsesTemplate Template:Citation_needed.
- QNX4FS subject Category:Disk_file_systems.
- QNX4FS hypernym System.
- QNX4FS type Article.
- QNX4FS type Article.
- QNX4FS comment "QNX4FS is an extent-based file system used by the QNX4 and QNX6 operating systems.As the file system uses soft updates, it remains consistent even after a power failure, without using journaling. Instead, the writes are carefully ordered and flushed to disk at appropriate intervals so that the on-disk structure always remains consistent, no matter if the operation is interrupted.".
- QNX4FS label "QNX4FS".
- QNX4FS sameAs m.02_dsv.
- QNX4FS sameAs Q7265501.
- QNX4FS sameAs Q7265501.
- QNX4FS wasDerivedFrom QNX4FS?oldid=572125488.
- QNX4FS isPrimaryTopicOf QNX4FS.