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doc: Architecture, placeholder in install, and first appendix.
Signed-off-by: Tommi Virtanen <tommi.virtanen@dreamhost.com>
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Tommi Virtanen
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======================== | ||
Differences from POSIX | ||
======================== | ||
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.. todo:: delete http://ceph.newdream.net/wiki/Differences_from_POSIX | ||
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Ceph does have a few places where it diverges from strict POSIX semantics for various reasons: | ||
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- Sparse files propagate incorrectly to tools like df. They will only | ||
use up the required space, but in df will increase the "used" space | ||
by the full file size. We do this because actually keeping track of | ||
the space a large, sparse file uses is very expensive. | ||
- In shared simultaneous writer situations, a write that crosses | ||
object boundaries is not necessarily atomic. This means that you | ||
could have writer A write "aa|aa" and writer B write "bb|bb" | ||
simultaneously (where | is the object boundary), and end up with | ||
"aa|bb" rather than the proper "aa|aa" or "bb|bb". |
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============ | ||
Appendices | ||
============ | ||
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.. toctree:: | ||
:glob: | ||
:numbered: | ||
:titlesonly: | ||
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* |
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@@ -94,6 +94,7 @@ Table of Contents | |
man/index | ||
papers | ||
glossary | ||
appendix/index | ||
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Indices and tables | ||
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