tag2name(8)						      System Manager's Manual						       tag2name(8)

NAME

       tag2name - Display the path name of an AdvFS file

SYNOPSIS

       /sbin/advfs/tag2name tags_directory/file_tag

       /sbin/advfs/tag2name [-r] domain fileset_id file_tag

OPTIONS

       Specify the [-r] option to operate on the raw device (character device special file) of the fileset instead of the block device.

OPERANDS

       Specifies  the name of an AdvFS domain.	Specifies the name of an AdvFS fileset using the following format: Specify the -S tag to force the
       command to interpret the name you supply as a fileset name.  Specify the fileset by entering either the name of the  fileset,  fileset,	or
       the file's fileset tag number, -T fileset_tag.  Specifies the relative path of the AdvFS tags directory for a fileset.  If you do not spec-
       ify this directory, the default is mount_point/.tags.  Specifies an AdvFS file tag number.

DESCRIPTION

       Internally, AdvFS identifies files by tag numbers (similar to inodes in UFS). Internal messages, error messages, and output from diagnostic
       utilities  usually  specify a tag number in place of a file name.  Use the tag2name command to determine the name and path of an AdvFS file
       that is identified by a tag number.

       If you enter an invalid tag number, the command returns the range of the valid tags for the fileset.

   Mounted Filesets
       Each mounted AdvFS fileset has a directory in its mount point. To obtain a file name, specify the path to the directory	for  the  fileset,
       followed by the tag number. The full path name of the corresponding file is displayed to stdout. This syntax uses AdvFS system calls.

   Unmounted Filesets
       When  you  use  the second form, the utility does not use AdvFS code and does not depend on the filset being mounted.  The path name of the
       file is relative to the fileset and is displayed on stdout.

       One use of the second form is to obtain names of files from a fileset that is unmounted and might produce a domain panic or a system  panic
       if it were mounted.

NOTES

       An  active  domain,  which  is  a domain with one or more of its filesets mounted, has all of its volumes opened using block device special
       files.  These devices cannot be opened a second time without first being unmounted.  However, the character device special  files  for  the
       volumes can be opened more than once while still mounted.

       It  can	be misleading to use the second form of this utility on a domain with mounted filesets.  Unlike the first form of the utility, the
       second form does not synchronize its read requests with AdvFS file domain read and write requests. To avoid this problem, unmount  all  the
       active filesets in the domain before using the second form of this utility.

       For  example,  the AdvFS can be writing to the disk as the utility is reading from the disk.  Therefore, when you run the utility, metadata
       may not have been flushed in time for the utility to read it and consecutive reads of the same file page may return unpredictable  or  con-
       tradictory results. [The domain is not harmed.]

RESTRICTIONS

       The  second form of this utility can fail to open a block device, even when there are no filesets mounted for the domain and the AdvFS dae-
       mon, advfsd is running. The daemon, as it runs, activates the domain for a brief time.  If the tag2name utility fails  in  this	situation,
       run it again.

       You must be the root user to use the tag2name utility.  The tag you specify must be numeric and greater than 1.

EXAMPLES

       The following example displays the file name corresponding to tag 5 in the usr fileset. It assumes the current working directory is /usr: #
       /sbin/advfs/tag2name .tags/5

       /usr/quota.group The following example displays the file name of the file whose tag is 145 in domain_1  fileset_1:  #  /sbin/advfs/tag2name
       domain_1 fileset_1 145

       joe/save/oldfile

FILES

       Specifies the command path.  Specifies the volumes in the domain.

SEE ALSO

       advfs(4)

																       tag2name(8)