Backing Up Loopback File System Directories

Because many non-global zones share files with the global zone through the use of loopback file system read-only mounts (usually /usr, /lib, /sbin, and /platform), you must use a global zone backup method to back up lofs directories.

Do not back up the lofs file systems shared with the global zone in non-global zones. An attempt by the non-global administrator to restore lofs file systems from a non-global zone could cause a serious problem.