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Annotation of coherent/a/usr/man/COHERENT/dump, revision 1.1.1.1

1.1       root        1: 
                      2: 
                      3: dump                         Command                         dump
                      4: 
                      5: 
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                      7: 
                      8: File system dump
                      9: 
                     10: dduummpp [_o_p_t_i_o_n_s] [_a_r_g_u_m_e_n_t ...]
                     11: 
                     12: dump dumps  either all  or a portion  of file system  argument to
                     13: magnetic tape or floppy disks.  File-system dumps are in a format
                     14: that  permits you  to restore  all or  some of  the files  to the
                     15: original file system, and to select files either by name or by i-
                     16: number.
                     17: 
                     18: A  file-system dump  includes all  files  changed since  the dump
                     19: since date,  plus each file's full path name  (for the benefit of
                     20: dumpdir).
                     21: 
                     22: options specifies both the dump-since date and the processing op-
                     23: tions.    It   is   made   up   of   characters  from   the   set
                     24: 0123456789bdfsSuv, which have the following meanings.
                     25: 
                     26: 00-99 The digit gives the level number of the dump.  The dump-since
                     27:     date is the most recent date in the dump-date file /etc/ddate
                     28:     that is  (1) associated with  this file system and  (2) has a
                     29:     level number less  than the current dump level.  For example,
                     30:     if you  request a level-3  dump, dduummpp will back  up all files
                     31:     not backed up since the last level-2 dump.  A level-0 dump by
                     32:     definition backs up all files in the file system.
                     33: 
                     34: bb   The  next argument gives  the output tape's  _b_l_o_c_k_i_n_g _f_a_c_t_o_r.
                     35:     The blocking  factor is the number  of dduummppddaattaa structures in
                     36:     each tape block.  The default blocking factor is 20.
                     37: 
                     38: dd   The  next argument  gives the density  of the output  tape in
                     39:     bytes per  inch.  The default density is  1600 bytes per inch
                     40:     (bpi).  dump uses the density to compute the quantity of tape
                     41:     needed.
                     42: 
                     43: ff   The next argument gives the path name of the output file.  If
                     44:     no f option is given, /dev/dump is assumed.
                     45: 
                     46: ss   The next argument gives the  length of the dump tape in feet.
                     47:     dump keeps  a running  total of the  quantity of tape  it has
                     48:     written, and  it asks for a  new reel if it  appears that the
                     49:     end of the reel is near.  The default length is 2,300 feet.
                     50: 
                     51: SS   The  next argument gives the size of  the dump output device,
                     52:     in blocks.  This is used only  if you are backing up the file
                     53:     system  to floppy  disks or  streaming cartridge  tape rather
                     54:     than to nine-track magnetic tape.
                     55: 
                     56: uu   If  the dump  completes without  error, update the  record of
                     57:     successful dumps kept  in file /etc/ddate.  There is an entry
                     58:     in this file for every file system and every dump level.
                     59: 
                     60: vv   Inform  the user of the  `dump since' date and  the length of
                     61:     tape used  in feet.  The  length is useful  for computing the
                     62: 
                     63: 
                     64: COHERENT Lexicon                                           Page 1
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                     67: 
                     68: 
                     69: dump                         Command                         dump
                     70: 
                     71: 
                     72: 
                     73:     quantity of tape remaining if multiple dumps are written onto
                     74:     a single reel of tape.
                     75: 
                     76: If no level number is given, dump assumes the options 9u.
                     77: 
                     78: ***** Files *****
                     79: 
                     80: /ddeevv/dduummpp -- Default dump device
                     81: /eettcc/ddddaattee -- Dump date file
                     82: 
                     83: ***** See Also *****
                     84: 
                     85: commands, dumpdate, dumpdir, restor
                     86: _A_d_m_i_n_i_s_t_e_r_i_n_g _C_O_H_E_R_E_N_T
                     87: 
                     88: ***** Diagnostics *****
                     89: 
                     90: Most errors are fatal, caused by a table overflowing or a read or
                     91: write error on the input or output device.
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                    130: COHERENT Lexicon                                           Page 2
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