If you must forcibly remove a volume from a file system, such as if a volume is permanently destroyed and you want to clean up the dangling pointers to the lost volume, use the fsck -o zapvol=volname command. The zapvol option performs a full file system check and zaps all inodes that refer to the specified volume. The fsck command prints the inode numbers of all files that the command destroys; the file names are not printed. The zapvol option only affects regular files if used on a dataonly volume. However, it could destroy structural files if used on a metadataok volume, which can make the file system unrecoverable. Therefore, the zapvol option should be used with caution on metadataok volumes.