ONC+ Release Notes

ONC+ Release Notes
What’s New in This Version of CacheFS
Chapter 1 11
What’s New in This Version of CacheFS
CacheFS supports the following new features:
• Cachefspack
The cachefspack command improves CacheFS performance and enables greater control
over the cache contents, because it ensures that the specified files are always present in
the cache.
This command enables administrators to pre-load specific files and directories in the
cache. This functionality is comparable to the rpages option. For information on rpages,
see the NFS Services Administrator’s Guide.
• Supports Large Files and Filesystems
CacheFS supports the maximum file and filesystem sizes, supported by NFS and the
underlying front filesystem in which the cache resides.
CacheFS data structures are 64-bit compliant.
• Enhanced Cache Consistency Checking
Consistency checking on demand, demandconst, is fully implemented in this version of
CacheFS. However, consistency is not checked at file open time.
Mount options can be switched without deleting or rebuilding the cache.
• New Consistency Option
The new consistency option, weakconst, improves the CacheFS response time.
This option verifies the consistency of the cache with the NFS client copy of file attributes,
and delays committing the changes to the server.
• Enhanced Error Messages
Provides enhanced error messages that display the command name. Error messages are
now printed to standard error, instead of standard output. This makes troubleshooting
easier.
NOTE CacheFS does not support NFSv4 filesystems.