vos_listvol - Online in the Cloud

PROGRAM:

NAME

vos_listvol - Displays information from a volume header

SYNOPSIS

vos listvol -server <machine name>
[-partition <partition name>]
[-fast] [-long] [-quiet]
[-extended] [-format]
[-cell <cell name>] [-noauth] [-localauth]
[-verbose] [-encrypt] [-noresolve] [-help]

vos listvo -s <machine name>
[-p <partition name>]
[-fa] [-lon] [-q] [-ex] [-fo]
[-c <cell name>]
[-noa] [-loc] [-v] [-en] [-nor] [-h]

DESCRIPTION

The vos listvol command formats and displays the following information from the volume
header of each specified volume: volume name, volume ID, volume type, size, and status at
the server. The actual information displayed depends on the combination of arguments
supplied when the command is issued. To display volume header information for various
numbers of volumes, combine the command's arguments as indicated:

· For every volume on a file server machine, specify the machine's name with the -server
argument.

· For every volume at a particular site, combine the -server argument with the
-partition argument.

To display the Volume Location Database (VLDB) entry for one or more volumes, use the vos
listvldb command. To display both the VLDB entry and the volume header for a single
volume, use the vos examine command.

OPTIONS

-server <server name>
Identifies the file server machine that houses volumes for which to display the
header. Provide the machine's IP address or its host name (either fully qualified or
using an unambiguous abbreviation). For details, see vos(1).

This argument can be combined with the -partition argument, as well as the -fast,
-long, or -extended flag.

-partition <partition name>
Identifies the partition (on the file server machine specified by the -server
argument) that houses volumes for which to display the header. Provide the partition's
complete name with preceding slash (for example, /vicepa) or use one of the three
acceptable abbreviated forms. For details, see vos(1).

-fast
Displays only the volume ID numbers of volumes stored at the site specified by the
-server, and optionally -partition, argument. Do not combine this flag with the
-extended flag.

-long
Displays more detailed information about each volume stored at the site specified by
the -server, and optionally -partition, argument. The information includes the volume
IDs of all three volume types associated with the volume, and the read/write volume's
quota, creation date and update date.

-quiet
Suppresses the lines that summarize the number of volumes listed and their status,
which otherwise appear at the beginning and end of the output when the output includes
more than one volume.

-extended
Displays extensive statistics about access patterns for each volume stored at the site
specified by the -server, and optionally -partition, argument. The statistics include
the number of reads and writes to files in the volume, and how recently files and
directories have been updated by their owners or other users. Do not combine this flag
with the -fast flag.

-format
Show information in a format suitable for machine parsing.

-cell <cell name>
Names the cell in which to run the command. Do not combine this argument with the
-localauth flag. For more details, see vos(1).

-noauth
Assigns the unprivileged identity "anonymous" to the issuer. Do not combine this flag
with the -localauth flag. For more details, see vos(1).

-localauth
Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile
file. The vos command interpreter presents it to the Volume Server and Volume Location
Server during mutual authentication. Do not combine this flag with the -cell argument
or -noauth flag. For more details, see vos(1).

-verbose
Produces on the standard output stream a detailed trace of the command's execution. If
this argument is omitted, only warnings and error messages appear.

-encrypt
Encrypts the command so that the operation's results are not transmitted across the
network in clear text. This option is available in OpenAFS versions 1.4.11 or later
and 1.5.60 or later.

-noresolve
Shows all servers as IP addresses instead of the DNS name. This is very useful when
the server address is registered as 127.0.0.1 or when dealing with multi-homed
servers. This option is available in OpenAFS versions 1.4.8 or later and 1.5.35 or
later.

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

OUTPUT

The output is ordered alphabetically by volume name and by default provides the following
information on a single line for each volume:

· Name

· Volume ID number

· Type (the flag is "RW" for read/write, "RO" for read-only, "BK" for backup)

· Size in kilobytes (1024 equals a megabyte)

· Number of files in the volume, if the -extended flag is provided

· Status on the file server machine, which is one of the following:

On-line
The volume is completely accessible to Cache Managers.

Off-line
The volume is not accessible to Cache Managers, but does not seem to be corrupted.
This status appears while a volume is being dumped, for example.

Off-line**needs salvage**
The volume is not accessible to Cache Managers, because it seems to be corrupted.
Use the bos salvage or salvager command to repair the corruption.

If the following message appears instead of the previously listed information, it
indicates that a volume is not accessible to Cache Managers or the vos command
interpreter, for example because a clone is being created.

**** Volume <volume_ID> is busy ****

If the following message appears instead of the previously listed information, it
indicates that the File Server is unable to attach the volume, perhaps because it is
seriously corrupted. The FileLog and VolserLog log files in the /var/log/openafs directory
on the file server machine possibly provide additional information; use the bos getlog
command to display them.

**** Could not attach volume <volume_ID> ****

The information about individual volumes is bracketed by summary lines. The first line of
output specifies the number of volumes in the listing. The last line of output summarizes
the number of volumes that are online, offline, and busy. These lines do not appear if the
-quiet flag is used.

If the -fast flag is added, the output displays only the volume ID number of each volume,
arranged in increasing numerical order. The final line (which summarizes the number of
online, offline, and busy volumes) is omitted.

If the -long flag is included, the output for each volume includes all of the information
in the default listing plus the following. Each item in this list corresponds to a
separate line of output:

· The file server machine and partition that house the volume, as determined by the
command interpreter as the command runs, rather than derived from the VLDB or the
volume header.

· The volume ID numbers associated with the various versions of the volume: read/write
("RWrite"), read-only ("ROnly"), backup ("Backup"), and ReleaseClone ("RClone"). One
of them matches the volume ID number that appears on the first line of the volume's
output. If the value in the "RWrite", "ROnly", or "Backup" field is 0 (zero), there is
no volume of that type. If there is currently no ReleaseClone, the "RClone" field does
not appear at all.

· The maximum space quota allotted to the read/write copy of the volume, expressed in
kilobyte blocks in the "MaxQuota" field.

· The date and time the volume was created, in the "Creation" field. If the volume has
been restored with the backup diskrestore, backup volrestore, or vos restore command,
this is the restore time.

· The date and time when the contents of the volume last changed, in the "Last Update"
field. For read-only and backup volumes, it matches the timestamp in the "Creation"
field.

· The number of times the volume has been accessed for a fetch or store operation since
the later of the two following times:

· 12:00 a.m. on the day the command is issued

· The last time the volume changed location

If the -extended flag is included, the output for each volume includes all of the
information reported with the -long flag, plus two tables of statistics:

· The table labeled "Raw Read/Write Stats" table summarizes the number of times the
volume has been accessed for reading or writing.

· The table labeled "Writes Affecting Authorship" table contains information on writes
made to files and directories in the specified volume.

EXAMPLES

The following example shows the output for the /vicepb partition on the file server
machine "fs2.abc.com" when no flags are provided:

% vos listvol -server fs2.abc.com -partition b
Total number of volumes on server fs2.abc.com partition /vicepb : 66
sys 1969534847 RW 1582 K On-line
sys.backup 1969535105 BK 1582 K On-line
. . . . . .
. . . . . .
user.pat 1969534536 RW 17518 K On-line
user.pat.backup 1969534538 BK 17537 K On-line
Total volumes onLine 66 ; Total volumes offLine 0 ; Total busy 0

The following example shows the output when the -fast flag is added:

% vos listvol -server fs2.abc.com -partition b -fast
Total number of volumes on server fs2.abc.com partition /vicepb : 66
1969516782
1969516784
.
.
1969535796

The following example shows two volumes from the output that appears when the -long flag
is added:

% vos listvol -server fs2.abc.com -partition b -long
Total number of volumes on server fs2.abc.com partition /vicepb: 66
. . . . . .
. . . . . .
user.pat 1969534536 RW 17518 K On-line
fs2.abc.com /vicepb
RWrite 1969534536 ROnly 0 Backup 1969534538
MaxQuota 20000 K
Creation Mon Jun 12 09:02:25 1989
Last Update Thu May 20 17:39:34 1999
1573 accesses in the past day (i.e., vnode references)
user.pat.backup 1969534538 BK 17537 K On-line
fs2.abc.com /vicepb
RWrite 1969534536 ROnly 0 Backup 1969534538
MaxQuota 20000 K
Creation Tue Jun 13 04:37:59 1989
Last Update Wed May 19 06:37:59 1999
0 accesses in the past day (i.e., vnode references)
. . . . . .
. . . . . .
Total volumes onLine 66 ; Total volumes offLine 0 ; Total busy 0

PRIVILEGE REQUIRED

None

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