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| author | Evgeniy Polyakov <zbr@ioremap.net> | 2009-03-27 15:04:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-17 11:06:30 -0700 |
| commit | e0ca87391694dfacd01465d5c01c579c3b8b63e0 (patch) | |
| tree | 7d295aa23034586fd7374b3e614e0844d39f351e /Documentation/filesystems/pohmelfs/design_notes.txt | |
| parent | f2739de19176009b14475207d5418cd79e7f0ba3 (diff) | |
| download | lwn-e0ca87391694dfacd01465d5c01c579c3b8b63e0.tar.gz lwn-e0ca87391694dfacd01465d5c01c579c3b8b63e0.zip | |
Staging: Pohmelfs: Added IO permissions and priorities.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/filesystems/pohmelfs/design_notes.txt')
| -rw-r--r-- | Documentation/filesystems/pohmelfs/design_notes.txt | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/filesystems/pohmelfs/design_notes.txt b/Documentation/filesystems/pohmelfs/design_notes.txt index 6d6db60d567d..dcf833587162 100644 --- a/Documentation/filesystems/pohmelfs/design_notes.txt +++ b/Documentation/filesystems/pohmelfs/design_notes.txt @@ -56,9 +56,10 @@ workloads and can fully utilize the bandwidth to the servers when doing bulk data transfers. POHMELFS clients operate with a working set of servers and are capable of balancing read-only -operations (like lookups or directory listings) between them. +operations (like lookups or directory listings) between them according to IO priorities. Administrators can add or remove servers from the set at run-time via special commands (described -in Documentation/pohmelfs/info.txt file). Writes are replicated to all servers. +in Documentation/pohmelfs/info.txt file). Writes are replicated to all servers, which are connected +with write permission turned on. IO priority and permissions can be changed in run-time. POHMELFS is capable of full data channel encryption and/or strong crypto hashing. One can select any kernel supported cipher, encryption mode, hash type and operation mode |