dumprestor man page on Ultrix

Man page or keyword search:  
man Server   3690 pages
apropos Keyword Search (all sections)
Output format
Ultrix logo
[printable version]

dump(5)								       dump(5)

       dumprestor, dumpdates - incremental dump format

       #include <sys/types.h>
       #include <sys/inode.h>
       #include <dumprestor.h>

       Tapes used by and contain:
       A header record
       Two groups of bit map records
       A group of records describing directories
       A group of records describing files

       The  format  of	the  header  record  and  of  the first record of each
       description as given in the include file <dumprestor.h> is:
       #define NTREC	   10
       #define MLEN	   16
       #define MSIZ	   4096

       #define TS_TAPE	   1
       #define TS_INODE	   2
       #define TS_BITS	   3
       #define TS_ADDR	   4
       #define TS_END	   5
       #define TS_CLRI	   6
       #define MAGIC	   (int) 60011
       #define CHECKSUM	   (int) 84446

       struct	 spcl {
	    int	      c_type;
	    time_t	   c_date;
	    time_t	   c_ddate;
	    int	      c_volume;
	    daddr_t	   c_tapea;
	    ino_t	   c_inumber;
	    int	      c_magic;
	    int	      c_checksum;
	    struct	   dinode	  c_dinode;
	    int	      c_count;
	    char      c_addr[BSIZE];
       } spcl;

       struct	 idates {
	    char      id_name[16];
	    char      id_incno;
	    time_t	   id_ddate;

       #define	 DUMPOUTFMT	"%-16s %c %s"	    /* for printf */
				     /* name, incno, ctime(date) */
       #define	 DUMPINFMT "%16s %c %[^\n]\n"  /* inverse for scanf */

       NTREC is the number of 1024-byte records	 in  a	physical  tape	block.
       MLEN  is	 the  number of bits in a bit map word.	 MSIZ is the number of
       bit map words.

       The TS_ entries are used in the c_type field to indicate what  sort  of
       header this is.	The types and their meanings are as follows:

       TS_TAPE	    Tape volume label.
       TS_INODE	    A file or directory follows.  The c_dinode field is a copy
		    of the disk inode and contains bits telling what  sort  of
		    file this is.
       TS_BITS	    A  bit  map	 follows.   This bit map has a one (1) bit for
		    each inode that was dumped.
       TS_ADDR	    A subrecord of a file description.	See  c_addr  described
		    in the next list.
       TS_END	    End of tape record.
       TS_CLRI	    A  bit  map follows.  This bit map contains a zero bit for
		    all inodes that were empty on the file system when dumped.
       MAGIC	    All header records have this number in c_magic.
       CHECKSUM	    Header records checksum to this value.

       The fields of the header structure are as follows:

       c_type	    The type of the header.
       c_date	    The date the dump was taken.
       c_ddate	    The date the file system was dumped from.
       c_volume	    The current volume number of the dump.
       c_tapea	    The current number of this (1024-byte) record.
       c_inumber    The number of the inode being dumped if this  is  of  type
       c_magic	    This contains the value MAGIC above, truncated as needed.
       c_checksum   This  contains whatever value is needed to make the record
		    sum to CHECKSUM.
       c_dinode	    This is a copy of the inode as it appears on the file sys‐
		    tem.  For further information, see
       c_count	    The count of characters in c_addr.
       c_addr	    An array of characters describing the blocks of the dumped
		    file.  A character is zero if the  block  associated  with
		    that  character was not present on the file system; other‐
		    wise the character is  nonzero.   If  the  block  was  not
		    present on the file system, no block was dumped; the block
		    will be restored as a hole in the file.  If there  is  not
		    sufficient	space  in  this	 record to describe all of the
		    blocks in  a  file,	 TS_ADDR  records  will	 be  scattered
		    through  the file, each one picking up where the last left

       Each volume except the last ends with a tapemark (read  as  an  end  of
       file).	The  last  volume ends with a TS_END record and then the tape‐

       The structure idates describes an entry in the file where dump  history
       is kept.	 The fields of the structure are:

       id_name	The dumped filesystem is `/dev/id_nam'.
       id_incno The  level  number of the dump tape.  For further information,
       id_ddate The date of the incremental dump in system format.   For  fur‐
		ther information, see

See Also
       fs(5), types(5), dump(8), restore(8)


List of man pages available for Ultrix

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net