vos_restore - Online in the Cloud

This is the command vos_restore that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


vos_restore - Converts an ASCII dump file into an AFS volume

SYNOPSIS


vos restore -server <machine name>
-partition <partition name>
-name <name of volume to be restored>
[-file <dump file>]
[-id <volume ID>]
[-overwrite (abort | full | incremental)]
[-offline] [-readonly]
[-creation (dump | keep | new)]
[-lastupdate (dump | keep | new)]
[-nodelete] [-cell <cell name>]
[-noauth] [-localauth]
[-verbose] [-encrypt] [-noresolve] [-help]

vos res -s <machine name>
-p <partition name>
-na <name of volume to be restored>
[-f <dump file>]
[-i <volume ID>]
[-ov (a | f | i)]
[-of] [-r]
[-cr (d | k | n)]
[-la (d | k | n)]
[-nod] [-c <cell name>]
[-noa] [-lo] [-v] [-e] [-nor] [-h]

DESCRIPTION


The vos restore command converts a volume dump file previously created with the vos dump
command from ASCII into the volume format appropriate for the machine type indicated by
the -server argument, and restores it as a read/write volume to the partition named by the
-partition argument on that machine. The Volume Server assigns the volume name indicated
with the -name argument, and resets the volume's creation timestamp to the time at which
the restore operation begins (the creation timestamp is stored in the volume header and
reported in the "Creation" field in the output from the vos examine and vos listvol
commands.)

Use the -file argument to name the dump file, or omit the argument to provide the file via
the standard input stream, presumably through a pipe. The pipe can be named, which enables
interoperation with third-party backup utilities.

As described in the following list, the command can create a completely new volume or
overwrite an existing volume. In all cases, the full dump of the volume must be restored
before any incremental dumps. If there are multiple incremental dump files, they must be
restored in the order they were created.

· To create a new read/write volume, use the -name argument to specify a volume name
that does not already exist in the Volume Location Database (VLDB), and the -server
and -partition arguments to specify the new volume's site. It is best to omit the -id
argument so that the Volume Location (VL) Server allocates a volume ID automatically.
Do not include the -overwrite argument, because there is no existing volume to
overwrite.

· To overwrite an existing volume at its current site, specify its name and site with
the -name, -server, and -partition arguments. The volume retains its current volume ID
number unless the -id argument is provided. Specify the value "f" or "i" for the
-overwrite argument to indicate whether the dump file is full or incremental,
respectively.

· To overwrite an existing volume and move it to a new site, specify its name and the
new site with the -name, -server, and -partition arguments. The volume retains its
current volume ID number unless the -id argument is provided. The volume is removed
from its original site. Specify the value "f" for the -overwrite argument to indicate
that the dump file is a full dump (it is not possible to restore an incremental dump
and move the volume at the same time).

If the volume named by the -name argument already exists and the -overwrite argument is
omitted, the command interpreter produces the following prompt:

Do you want to do a full/incremental restore or abort? [fia](a):

Respond by entering one of the following values:

· "f" if restoring a full dump file

· "i" if restoring an incremental dump file

· "a" or Return to cancel the restore operation

CAUTIONS


If the -file argument is omitted, the issuer must provide all other necessary arguments,
because the standard input stream is unavailable for responding to the command
interpreter's prompts for missing information. In particular, the issuer must provide the
-overwrite argument if overwriting an existing volume.

OPTIONS


-server <server name>
Identifies the file server machine onto which to restore the volume. Provide the
machine's IP address or its host name (either fully qualified or using an unambiguous
abbreviation). For details, see vos(1).

-partition <partition name>
Identifies the partition (on the file server machine specified by the -server
argument) onto which to restore the volume. 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).

-name <name of volume>
Specifies the name under which to restore the volume. It can be up to 22 characters
long, but cannot end with a ".readonly" or ".backup" extension. If the volume already
exists, it is overwritten subject to the value of the -overwrite argument.

-file <dump file>
Names the dump file to restore. Incomplete pathnames are interpreted relative to the
current working directory. Omit this argument to provide the dump file via the
standard input stream.

-id <volume ID>
Specifies the volume ID number to assign to the restored volume.

-overwrite (a | f | i)
Specifies which type of dump file is being restored when overwriting an existing
volume. Provide one of the following values:

· "a" to terminate the restore operation.

· "f" if restoring a full dump file.

· "i" if restoring an incremental dump file. This value is not acceptable if the
-server and -partition arguments do not indicate the volume's current site.

This argument is mandatory if the -file argument is not provided.

-offline
Leaves the new volume flagged as off-line in the volume database.

-readonly
Flags the new volume as read-only in the volume database.

-creation <dump | keep | new>
Set the creation date of the new volume to the timestamp from the dumped volume
(dump), from the target volume, if there is one (keep), or generate a new one using
the current time (new).

-lastupdate <dump | keep | new>
Set the last updated date of the new volume to the timestamp from the dumped volume
(dump), from the target volume, if there is one (keep), or generate a new one using
the current time (new).

-nodelete
This option is available in OpenAFS clients 1.4.7 or later and 1.5.31 or later. This
option can be used with OpenAFS server versions 1.4.1 or later and 1.5.0 or later.

-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.

EXAMPLES


The following command restores the contents of the dump file
/afs/abc.com/common/dumps/terry.dump to the /vicepc partition on the file server machine
"fs3.abc.com". The restored volume is named "user.terry".

% cd /afs/abc.com/common/dumps
% vos restore -file terry.dump -server fs3.abc.com -partition c
-name user.terry

PRIVILEGE REQUIRED


The issuer must be listed in the /etc/openafs/server/UserList file on the machine
specified with the -server argument and on each database server machine. If the -localauth
flag is included, the issuer must instead be logged on to a server machine as the local
superuser "root".

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