Differences between version 4 and previous revision of AndrewFileSystem.
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| Newer page: | version 4 | Last edited on Tuesday, July 13, 2004 12:19:56 pm | by AristotlePagaltzis | Revert |
| Older page: | version 3 | Last edited on Tuesday, July 13, 2004 3:04:22 am | by BrianJohnson | Revert |
@@ -6,16 +6,16 @@
* uses [Kerberos] for Authentication ([Kerberos5] prefered, though [Kerberos] 4 is native to OpenAFS)
* uses "tokens" tied to your UID to your [PAG], which are [Kerberos] 4 tickets stuffed into the kernel
* can cache files locally for fast access even to files only available to you over a slow link
* was originally called "Vice" (the Andrew Toolkit was known as 'Virtue')
-* no longer copies the entire file when it's opened for writing, which is slow for large files - though [Coda] still has to in order to support disconnected operation
+* no longer copies the entire file when it's opened for writing, which is slow for large files
-Some of its authors noticed that
[AFS] worked quite well for
a while when you unplugged the network, due to caching, but has issues when writes occur. A
research project called
[Coda
] was launched to allow fully disconnected operation: a laptop with a WLAN connection wandering
in and out of range will seamlessly synchronize all files (and notify the user of conflicts). The project was quite a success
.
+The
[AFS] team went on to develop [Coda] as
a research project on DisconnectedOperation, which spun off
[Intermezzo
], which
in turn spun off [Lustre]
.
-Then its team decided that they could do better, so they sat down and started working on
[Intermezzo
]. This project is based on the same principles as [Coda], along with the idea that it should be as fast as using a local filesystem,
and should do everything over well established protocols (such as [HTTP]). I doesn't seem
to be anywhere near production quality yet, though. Coda is unmaintained and pretty much unused nowadays. Update July 2004: Intermezzo is dead
, the most recent release of Coda was 6..6 in April 2004. The best I can tell is Coda is the only choice for disconnected operation until OpenAFS supports it
.
+[AFS
] however has not been abandoned
and continues
to thrive
, offering gigantic scaling capacities
.
-[AFS
] however continues to thrive, offering gigantic scaling capacities
.
+There is
[OpenAFS
] support in [Kernel] 2.6.7
.
See also:
* OpenAfsUserCrashCourse
* [AFSNotes]
* [Setting up OpenAFS under Debian|http://www.debianplanet.org/node.php?id=816]
