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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-05 23:43:11 -0500 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-05 23:43:11 -0500 |
commit | 29552b1462799afbe02af035b243e97579d63350 (patch) | |
tree | 42ad1639678a1bc8064f690494f62497bc48d318 /Documentation/filesystems/ocfs2.txt | |
parent | 6c59f9d9fb95934bf3d7d64249b338ce79953b5b (diff) | |
parent | 51e7a5987058c6b4d0c1337587f2ec0c34ffa708 (diff) |
Merge http://oss.oracle.com/git/ocfs2
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-rw-r--r-- | Documentation/filesystems/ocfs2.txt | 55 |
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diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt new file mode 100644 index 000000000000..f2595caf052e --- /dev/null +++ b/Documentation/filesystems/ocfs2.txt | |||
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1 | OCFS2 filesystem | ||
2 | ================== | ||
3 | OCFS2 is a general purpose extent based shared disk cluster file | ||
4 | system with many similarities to ext3. It supports 64 bit inode | ||
5 | numbers, and has automatically extending metadata groups which may | ||
6 | also make it attractive for non-clustered use. | ||
7 | |||
8 | You'll want to install the ocfs2-tools package in order to at least | ||
9 | get "mount.ocfs2" and "ocfs2_hb_ctl". | ||
10 | |||
11 | Project web page: http://oss.oracle.com/projects/ocfs2 | ||
12 | Tools web page: http://oss.oracle.com/projects/ocfs2-tools | ||
13 | OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/ | ||
14 | |||
15 | All code copyright 2005 Oracle except when otherwise noted. | ||
16 | |||
17 | CREDITS: | ||
18 | Lots of code taken from ext3 and other projects. | ||
19 | |||
20 | Authors in alphabetical order: | ||
21 | Joel Becker <joel.becker@oracle.com> | ||
22 | Zach Brown <zach.brown@oracle.com> | ||
23 | Mark Fasheh <mark.fasheh@oracle.com> | ||
24 | Kurt Hackel <kurt.hackel@oracle.com> | ||
25 | Sunil Mushran <sunil.mushran@oracle.com> | ||
26 | Manish Singh <manish.singh@oracle.com> | ||
27 | |||
28 | Caveats | ||
29 | ======= | ||
30 | Features which OCFS2 does not support yet: | ||
31 | - sparse files | ||
32 | - extended attributes | ||
33 | - shared writeable mmap | ||
34 | - loopback is supported, but data written will not | ||
35 | be cluster coherent. | ||
36 | - quotas | ||
37 | - cluster aware flock | ||
38 | - Directory change notification (F_NOTIFY) | ||
39 | - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease) | ||
40 | - POSIX ACLs | ||
41 | - readpages / writepages (not user visible) | ||
42 | |||
43 | Mount options | ||
44 | ============= | ||
45 | |||
46 | OCFS2 supports the following mount options: | ||
47 | (*) == default | ||
48 | |||
49 | barrier=1 This enables/disables barriers. barrier=0 disables it, | ||
50 | barrier=1 enables it. | ||
51 | errors=remount-ro(*) Remount the filesystem read-only on an error. | ||
52 | errors=panic Panic and halt the machine if an error occurs. | ||
53 | intr (*) Allow signals to interrupt cluster operations. | ||
54 | nointr Do not allow signals to interrupt cluster | ||
55 | operations. | ||