Using Commands over SSH using Sudo Post: 302596053

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fssnap

fssnap(1M)                                                System Administration Commands                                                fssnap(1M)

NAME

       fssnap - create temporary snapshots of a file system

SYNOPSIS

       fssnap [-F FSType] [-V] -o special_options /mount/point

       fssnap  -d [-F  FSType] [-V] /mount/point | dev

       fssnap -i [-F FSType] [-V] [-o special_options] [/mount/point | dev]

DESCRIPTION

       The  fssnap  command creates a stable, read-only snapshot of a file system when given either an active mount point or a special device con-
       taining a mounted file system, as in the first form of the synopsis. A snapshot is a temporary image of a file system intended  for  backup
       operations.

       While the snapshot file system is stable and consistent, an application updating files when the snapshot is created might leave these files
       in an internally inconsistent, truncated, or otherwise unusable state. In such a case, the snapshot will contain these partially written or
       corrupted files.  It is a good idea to ensure active applications are suspended or checkpointed and their associated files are also consis-
       tent during snapshot creation.

       File access times are not updated while the snapshot is being created.

       A path to the virtual device that contains this snapshot is printed to standard output when a snapshot is created.

OPTIONS

       The following options are supported:

       -d                      Deletes the snapshot associated with the given file system.

       -F FSType               Specifies the file system type to be used. The FSType should either be specified here or be determined by  matching
                               the block special device with an entry in the /etc/vfstab table, or by consulting /etc/default/fs.

       -i                      Displays  the  state of any given FSType snapshot. If a mount-point or device is not given, a list of all snapshots
                               on the system is displayed. When a mount-point or device is specified, detailed information  is  provided  for  the
                               specified file system snapshot by default. The format and meaning of this information is file-system dependent. See
                               the FSType-specific fssnap man page for details.

       -o special_options      See the FSType-specific man page for fssnap.

       -V                      Echoes the complete command line, but does not execute the command.

OPERANDS

       The following operands are supported:

       /mount/point            The directory where the file system resides.

EXAMPLES

       See FSType-specific man pages for examples.

EXIT STATUS

       The following exit values are returned:

       0        Successful completion.

       >0       An error occurred.

FILES

       /etc/vfstab             Specifies file system type.

       /etc/default/fs         Specifies the default local file system type.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       fssnap_ufs(1M), attributes(5)

NOTES

       This command might not be supported for all FSTypes.

SunOS 5.10                                                          11 Aug 2004                                                         fssnap(1M)

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

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Discussion started by: linuxmtl

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Discussion started by: hansini

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Discussion started by: ITHelper

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