Claims
- 1. A method of operating a cluster of computer system nodes sharing direct read/write access to storage devices via a storage area network, comprising:
using tokens to control access by a client node to extended attributes for a filesystem administered by a metadata server node; and caching the extended attributes at the client node when access to the extended attributes is permitted by the metadata server node.
- 2. A method as recited in claim 1, wherein the extended attributes include at least one access control list for the filesystem.
- 3. A method as recited in claim 1, wherein the extended attributes include at least one mandatory access control label for the filesystem.
- 4. At least one computer readable medium storing at least one program embodying a method of operating a cluster of computer system nodes sharing direct read/write access to storage devices via a storage area network, said method comprising:
using tokens to control access by a client node to extended attributes for a filesystem administered by a metadata server node; and caching the extended attributes at the client node when access to the extended attributes is permitted by the metadata server node.
- 5. At least one computer readable medium as recited in claim 4, wherein the extended attributes include at least one access control list for the filesystem.
- 6. At least one computer readable medium as recited in claim 4, wherein the extended attributes include at least one mandatory access control label for the filesystem.
- 7. A cluster of computer systems, comprising:
storage devices storing at least one filesystem; a storage area network coupled to said storage devices; at least one metadata server node, coupled to said storage area network metadata client nodes, coupled to said storage area network, using tokens to control access to extended attributes for a filesystem administered by said metadata server node and caching the extended attributes when access to the extended attributes is permitted by said metadata server node.
- 8. A cluster of computer systems as recited in claim 7, wherein the extended attributes include at least one access control list for the filesystem.
- 9. A cluster of computer systems as recited in claim 7, wherein the extended attributes include at least one mandatory access control label for the filesystem.
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application is related to and claims priority to U.S. provisional application entitled CLUSTERED FILE SYSTEM having serial No. 60/296,046, by Bannister et al., filed Jun. 5, 2001 and incorporated by reference herein.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60296046 |
Jun 2001 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10162258 |
Jun 2002 |
US |
Child |
10197211 |
Jul 2002 |
US |