The Xsan API macros for use with the fnctl(2) system call to complete the following tasks:
get and set a file’s affinity
allocate space in a file and get information about a file’s allocated space
enable and disable real-time I/O for a storage pool and individual files
get and set quota limits for users and groups
Before You Start
Working With Real-Time I/O
Last updated: 2006-05-23