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ReiserFS is a general-purpose, journaled computer file system formerly designed and implemented by a team at Namesys led by Hans Reiser. ReiserFS is currently supported on Linux (without quota support). Introduced in version 2.4.1 of the Linux kernel, it was the first journaling file system to be included in the standard kernel. ReiserFS is the default file system on the Elive, Xandros, Linspire, GoboLinux, and Yoper Linux distributions. ReiserFS was the default file system in Novell's SUSE Linux Enterprise until Novell decided to move to ext3 on October 12, 2006 for future releases.〔.〕 Namesys considered ReiserFS (now occasionally referred to as Reiser3) stable and feature-complete and, with the exception of security updates and critical bug fixes, ceased development on it to concentrate on its successor, Reiser4. Namesys went out of business in 2008 after Hans Reiser was charged with the murder of his wife (and later convicted and sent to prison). However, volunteers continue to work on the open source project. ==Features== At the time of its introduction, ReiserFS offered features that had not been available in existing Linux file systems: * Metadata-only journaling (also block journaling, since Linux 2.6.8), its most-publicized advantage over what was the stock Linux file system at the time, ext2. * Online resizing (growth only), with or without an underlying volume manager such as LVM. Since then, Namesys has also provided tools to resize (both grow and shrink) ReiserFS file systems offline. * Tail packing, a scheme to reduce internal fragmentation. Tail packing, however, can have a significant performance impact. Reiser4 may have improved this by packing tails where it does not hurt performance. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ReiserFS」の詳細全文を読む スポンサード リンク
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