Support to mount an inconsistent file system

In older DLVs an inconsistent file system would have stayed mounted and functional. However, if the same was unmounted for any reason, it was not possible to mount the same without a complete fsck. In 7.1, it is possible to attempt to mount an inconsistent file system, so that any immediate need of data availability is met. Also, a full fsck can be scheduled at a more convenient time. For more info see the delayfsck option in the mount_vxfs (1M) command.