Differences between version 6 and predecessor to the previous major change of UFS.
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| Newer page: | version 6 | Last edited on Thursday, April 8, 2004 12:07:09 am | by PhilMurray | Revert |
| Older page: | version 4 | Last edited on Monday, April 5, 2004 2:29:06 pm | by AristotlePagaltzis | Revert |
@@ -1,5 +1,11 @@
An [Acronym] for [Unix] FileSystem.
It was originally developed from the first versions of [UNIX] at [AT&T]. The FileSystem reached its current status in the 4.x [BSD] distributions. It it currently used in [FreeBSD], [NetBSD] as well as [OpenBSD] and the [Solaris] Operating Environment. The [Linux] [Kernel] only includes experimental support.
-[FreeBSD] versions 5.0 introduced UFS2, which allows soft updates, a more efficient method of writing
FileSystem MetaData
, as well as support for volumes over 1TB in size.
+[FreeBSD] versions 5.0 introduced UFS2, which allows FileSystem Snapshots, background fscking
, as well as support for volumes over 1TB in size.
+
+[NetBSD] (since 1.5), [FreeBSD] (since 4.) and [OpenBSD] (since 2.3) all employ an addition to UFS called SoftUpdates. SoftUpdates is which is a mechanism that allows a file system to safely use delayed writes for metadata updates. The results are consistent filesystems after powerloss/crash and much improved performance.
+
+Some variants also referred to as FFS (Such as in NetBSD?)
+
+See [http://www.mckusick.com/softdep/index.html] for information
