volserver - Initializes the Volume Server component of the fs
process
volserver
[-log]
[-p <number of processes>]
[-auditlog <log path>]
[-audit-interface (file | sysvmq)]
[-logfile <log file]
[-config <configuration path>]
[-udpsize <size of socket buffer in bytes>]
[-d <debug level>]
[-nojumbo] [-jumbo]
[-enable_peer_stats] [-enable_process_stats]
[-allow-dotted-principals] [-clear-vol-stats]
[-sync <sync behavior>]
[-rxmaxmtu <bytes>]
[-rxbind]
[-syslog[=<FACILITY]]
[-transarc-logs]
[-sleep <sleep time/run time>]
[-restricted_query (anyuser | admin)]
[-s2scrypt (never | always | inherit)]
[-help]
The volserver command initializes the Volume Server
component of the "fs" process. In the
conventional configuration, its binary file is located in the
/usr/lib/openafs directory on a file server machine.
The volserver command is not normally issued at the command
shell prompt but rather placed into a file server machine's
/etc/openafs/BosConfig file with the bos create command. If it
is ever issued at the command shell prompt, the issuer must be logged onto a
database server machine as the local superuser
"root".
The Volume Server records a trace of its activity in the
/var/log/openafs/VolserLog file. Use the bos getlog command to
display the contents of the file.
The Volume Server processes the vos commands that
administrators use to create, delete, move, and replicate volumes, as well
as prepare them for archiving to tape or other media.
By default, the VL Server runs nine lightweight processes (LWPs).
To change the number, use the -p argument.
This command does not use the syntax conventions of the AFS
command suites. Provide the command name and all option names in full.
- -d <debug
level>
- Sets the detail level for the debugging trace written to the
/var/log/openafs/VolserLog file. Provide one of the following
values, each of which produces an increasingly detailed trace:
0, 1,
5, 25, and
125.
- -log
- Records in the /var/log/openafs/VolserLog file the names of all users who
successfully initiate a vos command. The Volume Server also records
any file removals that result from issuing the vos release command
with the -f flag.
- -transarc-logs
- Use Transarc style logging features. Rename the log file
/var/log/openafs/VolserLog to /var/log/openafs/VolserLog.old
when the volume server is restarted. This option is provided for
compatibility with older versions.
- -p <number of
processes>
- Sets the number of server lightweight processes (LWPs) to run. Provide an
integer between 4 and 16.
The default is 9.
- -auditlog
<log path>
- Turns on audit logging, and sets the path for the audit log. The audit log
records information about RPC calls, including the name of the RPC call,
the host that submitted the call, the authenticated entity (user) that
issued the call, the parameters for the call, and if the call succeeded or
failed.
- -audit-interface
(file | sysvmq)
- Specifies what audit interface to use. Defaults to
"file". See fileserver(8) for an
explanation of each interface.
- -udpsize
<size of socket buffer>
- Sets the size of the UDP buffer in bytes, which is 64 KB by default.
Provide a positive integer, preferably larger than the default.
- -jumbo
- Allows the server to send and receive jumbograms. A jumbogram is a
large-size packet composed of 2 to 4 normal Rx data packets that share the
same header. The volserver does not use jumbograms by default, as some
routers are not capable of properly breaking the jumbogram into smaller
packets and reassembling them.
- -nojumbo
- Deprecated; jumbograms are disabled by default.
- -enable_peer_stats
- Activates the collection of Rx statistics and allocates memory for their
storage. For each connection with a specific UDP port on another machine,
a separate record is kept for each type of RPC (FetchFile, GetStatus, and
so on) sent or received. To display or otherwise access the records, use
the Rx Monitoring API.
- -enable_process_stats
- Activates the collection of Rx statistics and allocates memory for their
storage. A separate record is kept for each type of RPC (FetchFile,
GetStatus, and so on) sent or received, aggregated over all connections to
other machines. To display or otherwise access the records, use the Rx
Monitoring API.
- -allow-dotted-principals
- By default, the RXKAD security layer will disallow access by Kerberos
principals with a dot in the first component of their name. This is to
avoid the confusion where principals user/admin and user.admin are both
mapped to the user.admin PTS entry. Sites whose Kerberos realms don't have
these collisions between principal names may disable this check by
starting the server with this option.
- -clear-vol-stats
- Clear volume access statistics during volume restore and reclone
operations. This includes clearing the volume access statistics of
read-only volumes during a volume release. By default, volume access
statistics are preserved during volume restore and reclone operations.
Volume access statistics were cleared by default in versions
prior to OpenAFS 1.8.0. This flag is intended to provide compatible
behaviour.
- -sync <sync
behavior>
- This is the same as the -sync option in fileserver(8). See
fileserver(8).
- -logfile
<log file>
- Sets the file to use for server logging. If logfile is not specified and
no other logging options are supplied, this will be
/var/log/openafs/VolserLog. Note that this option is intended for
debugging and testing purposes. Changing the location of the log file from
the command line may result in undesirable interactions with tools such as
bos.
- -config
<configuration directory>
- Set the location of the configuration directory used to configure this
service. In a typical configuration this will be
/etc/openafs/server - this option allows the use of alternative
configuration locations for testing purposes.
- -rxmaxmtu
<bytes>
- Defines the maximum size of an MTU. The value must be between the minimum
and maximum packet data sizes for Rx.
- -rxbind
- Bind the Rx socket to the primary interface only. (If not specified, the
Rx socket will listen on all interfaces.)
- -syslog[=<syslog
facility>]
- Specifies that logging output should go to syslog instead of the normal
log file. -syslog=FACILITY can be used to specify to which
facility the log message should be sent.
- -sleep
<sleep_time/run_time>
- This option is obsolete, and is now only accepted for compatibility with
older releases. All it does now is log a warning message about how the
option is obsolete.
- -restricted_query
(anyuser | admin)
- Restrict RPCs that query information about volumes to a specific group of
users. You can use "admin" to restrict
to AFS administrators. The "anyuser"
option doesn't restrict the RPCs and leaves it open for all users
including unauthenticated users, this is the default.
- -s2scrypt
(never | always | inherit)
- Set the cryptographic disposition of inter-volserver traffic.
- never
- All inter-volserver traffic is unencrypted. This is the default
behavior.
- always
- All inter-volserver traffic is encrypted (using rxkad).
- inherit
- Inter-volserver traffic will be encrypted if the client connection
triggering the server-to-server traffic is encrypted. This has the effect
of encrypting inter-server traffic if the "-encrypt" option is
provided to vos release, for example.
- -help
- Prints the online help for this command. All other valid options are
ignored.
The following bos create command creates a
"volserver" process on the machine
"fs2.example.com" as part of the fs
process:
% bos create -server fs2.example.com -instance fs -type fs \
-cmd "/usr/lib/openafs/fileserver" \
/usr/lib/openafs/volserver /usr/lib/openafs/salvager
The issuer must be logged in as the superuser
"root" on a file server machine to issue
the command at a command shell prompt. It is conventional instead to create
and start the process by issuing the bos create command.
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