VMS Help BACKUP Command, Examples  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    1.$ BACKUP
      _From: DBA1:[000000...]
      _To: MTA0:13NOVBAK.BCK,MTA1:/LABEL=(DLY101,DLY102)

      This BACKUP command saves the entire contents of the disk
      DBA1 onto a multivolume tape save set. This command does not
      initialize the first tape in the save set, but does initialize
      subsequent tapes. The first tape in the save set must be
      labeled DLY101 and the second tape in the save set must be
      labeled DLY102.

    2.$ BACKUP [PLI.WORK]/SINCE=YESTERDAY/MODIFIED [PLI.SAV]

      This BACKUP command copies selected files in the directory
      [PLI.WORK] to the directory [PLI.SAV]. BACKUP processes only
      those files that have been modified since 24 hours preceding
      midnight last night. Note that the /MODIFIED qualifier is
      not required, as its action is the default when the /SINCE
      qualifier is specified.

    3.$ BACKUP DBA2:[PLI.WORK]*.*;  DBA3:[SAVE]23MAR82.BCK/SAVE_SET

      This BACKUP command saves the highest version of each file in
      directory [PLI.WORK] to a disk save set on DBA3. The /SAVE_
      SET qualifier is required because the output save set is on a
      Files-11 disk.

    4.$ BACKUP/PHYSICAL DYA0:  DYA1:

      This BACKUP command copies the entire RX02 floppy disk mounted
      on device DYA0 to the RX02 floppy disk mounted on device
      DYA1. Both devices must have been mounted with the DCL command
      MOUNT/FOREIGN.

    5.$ BACKUP
      _From: DB1:[SCHED]*.*
      _To: DENVER::DBA2:[SAVE]SCH.BCK/SAVE_SET

      This BACKUP command saves all files in the directory SCHED
      on disk DB1 at the local node to the network save set SCH.BCK
      at remote node DENVER. The /SAVE_SET qualifier is required to
      identify the output specifier as a save set on a Files-11 disk.

    6.$ BACKUP/LIST DENVER::DBA2:[SAVE]SCH.BCK/SAVE_SET

      This BACKUP command lists the BACKUP summary information,
      the original BACKUP command used, and the file name, size,
      and creation date for each file in the save set created in
      the previous example. The /SAVE_SET qualifier is required
      to identify the input specifier as a save set on a Files-11
      device.

    7.$ BACKUP MTA0:NOV2SAVE.BCK/REWIND/SELECT=[USER...] [USER...]

      This command restores files from the magnetic tape save set
      named NOV2SAVE.BCK to the directory tree from which they
      were saved (the [USER] directory tree). The /REWIND qualifier
      directs BACKUP to rewind the tape to the beginning-of-tape
      before beginning the restore operation.

    8.$ BACKUP WORK$:[TESTFILES...]*.*;*  MUA0:TEST.SAV  -
      _$ /MEDIA_FORMAT=COMPACTION /REWIND

      This command saves all files in the directory [TESTFILES] and
      its subdirectories to a save set named TEST.SAV using a TA90E
      tape drive. The /MEDIA_FORMAT=COMPACTION qualifier specifies
      that the tape drive automatically compacts and blocks together
      data records on the tape.

    9.$ BACKUP/IMAGE/RECORD/VERIFY/NOASSIST
      _From: DKA100:
      _To: MKB100:MAR11.SAV/LABEL=(TAPE1,TAPE2,TAPE3)/EXACT_ORDER

      This example uses the /EXACT_ORDER qualifier to specify the
      exact order of labels for the BACKUP operation. Note that
      if you specify the /ASSIST qualifier, BACKUP would display
      messages on the operator terminal. BACKUP performs the
      following tasks:

      a. Compares the volume label of the tape in MKB100: with
         the first label that you specified on the command line
         (TAPE1). If the labels match exactly, BACKUP begins the
         save operation. If the labels do not match or if the tape
         does not have an ANSI label, BACKUP displays the following
         message:

           %BACKUP-W-MOUNTERR, volume 1 on MKB100: was not mounted because
            its label does not match the one requested
           %BACKUP-W-EXLABEER, volume label processing failed because
            volume TAPE4 is out of order, Volume label TAPE1 was expected
            specify option (QUIT, NEW tape, OVERWRITE tape, USE loaded tape)
           BACKUP> OVERWRITE

         Depending on the option you specify, you can quit the backup
         operation (QUIT), dismount the old tape and mount a new
         one (NEW), overwrite the label and the data on the tape
         (OVERWRITE), or write the data to the tape using the loaded
         tape's label (USE).

      b. When the operation fills the first tape, it displays the
         following message:

           %BACKUP-I-RESUME, resuming operation on volume 2
           %BACKUP-I-READYWRITE, mount volume TAPE2 on MKB100: for writing
           Respond with YES when ready:

      c. When you load the second tape and enter YES, BACKUP compares
         the label of the second tape with the second label you
         specified on the command line (TAPE2) just as it did in
         step 1a.

      d. Assuming the volume labels match, BACKUP continues
         processing until it completes the operation or runs out
         of volume labels. If you do not specify enough labels on the
         command line to complete the operation, BACKUP prompts you
         to enter a label for the tape in the drive as follows:

           %BACKUP-W-MOUNTERR, volume 4 on MKB100: was not mounted because
            the label was not specified
            specify EXACT_ORDER label (up to 6 characters)
           BACKUP>

         BACKUP then compares the label on the tape with label you
         specify as described previously.

    10$ BACKUP/IMAGE/RECORD/VERIFY/NOASSIST
      _From: DKA100:[TEST]
      _To: MKB100:MAR11.SAV/EXACT_ORDER

      Because this example does not use the /LABEL qualifier, BACKUP
      uses the existing label on the tape. If the tape does not
      have an ANSI label, and it is the first tape in the operation,
      BACKUP displays the following error message:

        %BACKUP-F-NOTANSI, tape is not valid ANSI format

      If the tape does not have an ANSI label, and is not the first
      tape in the operation, BACKUP displays the following error
      message prompting you to specify a label:

        %BACKUP-W-MOUNTERR, volume 2 on MKB100: was not mounted because
         the label was not specified
         specify EXACT_ORDER label (up to 6 characters)
        BACKUP>

                                   NOTE

       BACKUP checks to make sure you specify a valid label.
       If the label is not valid (for example, longer than six
       characters), BACKUP displays an error message. In previous
       versions of the OpenVMS operating system, BACKUP truncated
       long volume labels.