volinfo - Produces detailed statistics about AFS volume headers

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OpenAFS                                            2025-03-21                                         VOLINFO(8)

       The volinfo command displays detailed statistics about one or more volume headers and the partition that
       houses them. The command must be issued on a file server machine and by default produces output for every
       volume on every AFS server partition on the machine. To display output for the volumes on one partition
       only, include the -part argument. To display output for one volume only, include the -volumeid argument.

       volinfo - Produces detailed statistics about AFS volume headers

-checkout
           Checkout  the specified volume from the running fileserver. This ensures that the fileserver or other
           processes will not be modifying volume metadata at the same time we are trying to read it, leading to
           invalid or incorrect results.

       -vnode
           Displays a table for each volume which lists the large (directory) and small (file) vnodes in it,  in
           addition to the default output.

       -date
           When  combined  with the -vnode flag, adds the "ServerModTime" field to each vnode entry in the large
           vnode and small vnode tables, reporting its most recent modification time.

       -inode
           When combined with the -vnode flag, adds the "inode" field to each vnode entry in the large vnode and
           small vnode tables, reporting the associated inode number.

       -itime
           When combined with the -vnode flag, displays a change, modification, and access timestamp for each of
           the large vnode and small vnode tables.

       -part <partitionnameorid>+
           Specifies the partition that houses each volume for which to produce output. Use the format  /vicepxx
           or  xx, where xx is one or two lowercase letters. This argument can be omitted if the current working
           directory is the mount location for an AFS server partition. If it is not the mount location  for  an
           AFS  server  partition,  the  command  produces  output  for  every  volume  on  all local AFS server
           partitions.

       -volumeid <volumeid>+
           Specifies the ID number of one volume for which to  produce  output.   The  -part  argument  must  be
           provided  along  with this one unless the current working directory is the mount location for the AFS
           server partition that houses the volume.

       -header
           Displays statistics about the volume header of each volume, in addition to the default output.

       -sizeonly
           Displays a single line of output for each volume, reporting the size of various structures associated
           with it. The default output is suppressed and any flags that modify it (such as -vnode) are ignored.

       -fixheader
           Repairs damaged inodes in each volume if possible. If there are any, it  reports  the  action  it  is
           taking to repair them. Otherwise, it produces no output in addition to the default output.

       -saveinodes
           Creates  a  file  in the current working directory for each inode in each volume. Each file is called
           TmpInode.vnode_number and contains the inode's contents. The default output  is  suppressed  and  any
           flags that modify it (such as -vnode) are ignored.

       -orphaned
           Displays  a  large  vnode  and  small  vnode  table for each volume, which lists only orphaned vnodes
           (vnodes that have no parent). If there are none, the tables are empty (only the headers appear).

       -filenames
           When combined with the -vnode flag, adds the full path and file name of the "namei" file which stores
           the vnode data to each vnode entry in the large vnode and small vnode tables.  This  option  is  only
           available on fileservers which use the "namei" storage format for storing data.

       -help
           Prints the online help for this command. All other valid options are ignored.

       By  default,  the  command  produces  several  line  of  statistics for each volume. Adding other options
       produces or substitutes additional information as described in "OPTIONS".  The  output  is  intended  for
       debugging purposes and is meaningful to someone familiar with the internal structure of volume headers.

       The issuer must be logged in as the local superuser "root".

volscan(8), vldb.DB0(5), volserver(8)

volinfo [-checkout] [-vnode] [-date] [-inode] [-itime]
           [-part <AFSpartitionname(defaultcurrentpartition)>+]
           [-volumeid <volumeid>+] [-header] [-sizeonly]
           [-fixheader] [-saveinodes] [-orphaned] [-filenames] [-help]