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Annotation of researchv10dc/dist/man/v4/man8/dump.8, revision 1.1.1.1

1.1       root        1: .th DUMP VIII 11/24/73
                      2: .sh NAME
                      3: dump \*- incremental file system dump
                      4: .sh SYNOPSIS
                      5: .bd dump
                      6: [ key [ arguments ] filesystem ]
                      7: .sh DESCRIPTION
                      8: .it Dump
                      9: will make an incremental file system dump
                     10: on magtape
                     11: of all files changed after a certain date.
                     12: The argument
                     13: .it key,
                     14: specifies the date and other options about the dump.
                     15: .it Key
                     16: consists of characters from
                     17: the set
                     18: .bd iu0hds.
                     19: .s3
                     20: .lp +5 3
                     21: \fBi\fR        the
                     22: dump date is taken from the file
                     23: .bd /etc/ddate.
                     24: .s3
                     25: .lp +5 3
                     26: \fBu\fR        the date just prior to this dump
                     27: is written on
                     28: .bd /etc/ddate
                     29: upon successful completion of this dump.
                     30: .s3
                     31: .lp +5 3
                     32: \fB0\fR        the dump date is taken as the epoch
                     33: (beginning of time).
                     34: Thus this option causes an entire file system dump to be taken.
                     35: .s3
                     36: .lp +5 3
                     37: \fBh\fR        the dump date is some number of hours before the current date.
                     38: The number of hours is taken from the next argument in
                     39: .it arguments.
                     40: .s3
                     41: .lp +5 3
                     42: \fBd\fR        the dump date is some number of days before the current date.
                     43: The number of days is taken from the next argument in
                     44: .it arguments.
                     45: .s3
                     46: .lp +5 3
                     47: \fBs\fR        the size of the dump tape is specified in feet.
                     48: The number of feet is taken from the next argument in
                     49: .it arguments.
                     50: It is assumed that there are 9 standard UNIX records per foot.
                     51: When the specified size is reached,
                     52: the dump will wait for reels to be changed.
                     53: The default size is 1700 feet.
                     54: .s3
                     55: .i0
                     56: If no arguments are given,
                     57: the
                     58: .it key
                     59: is assumed to be
                     60: .bd i
                     61: and the file system is
                     62: assumed to be
                     63: .bd /dev/rp1.
                     64: .s3
                     65: Full dumps
                     66: should be taken on quiet file systems as follows:
                     67: .s3
                     68:        dump 0u /dev/rp1
                     69: .br
                     70:        check -l /dev/rp1
                     71: .s3
                     72: The
                     73: .it check
                     74: will come in handy in case it is necessary
                     75: to resore indiviidual files from this dump.
                     76: Incremental dumps should then be taken
                     77: when desired by:
                     78: .s3
                     79:        dump
                     80: .s3
                     81: When the incremental dumps get cumbersome,
                     82: a new complete dump should be taken.
                     83: In this way,
                     84: a restore requires
                     85: loading of the complete dump tape and only the latest incremental tape.
                     86: .sh FILES
                     87: /dev/mt0       magtape
                     88: .br
                     89: /dev/rp1       default file system
                     90: .br
                     91: /etc/ddate
                     92: .sh "SEE ALSO"
                     93: restor, check(VIII), dump(V)
                     94: .sh BUGS

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