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Unsupported features

Unsupported features describes functionality as not supported and may not be expressly prevented from operating on cluster file systems, but the actual behavior is indeterminate.

It is not advisable to use unsupported functionality on SFCFS, or to alternate mounting file systems with these options as local and cluster mounts.

Unsupported features

Unsupported features

Comments

qlog 

Quick log is not supported. 

Swap files 

Swap files are not supported on cluster mounted file system. 

mknod 

The mknod command cannot be used to create devices on a cluster mounted file system. 

Cache advisories 

Cache advisories are set with the mount command on individual file systems, but are not propagated to other nodes of a cluster. 

Cached Quick I/O 

This Quick I/O for Databases feature that caches data in the file system cache is not supported. 

Commands that depend on file access times 

File access times may appear different across nodes because the atime file attribute is not closely synchronized in a cluster file system. So utilities that depend on checking access times may not function reliably.