NAME

volcopy, labelit − copy file systems with label checking

SYNOPSIS

/etc/volcopy [−bpibits-per-inch ] [−feetsize ] fsname special1 volname1 special2 volname2
/etc/labelit special [ fsname volume [ −n ] ]

DESCRIPTION

Volcopy makes a literal copy of the file system using a blocksize matched to the device (10 blocks for 800/1600 bpi tape; 88 blocks for everything else).  Using volcopy, a 2400 foot/1600 bpi tape will hold a 65K file system. The optional flag arguments are used only with tapes (−bpi -- bits-per-inch; −feet -- size of reel in feet).  The program requests the information if it is not given on the command line.  If the file system is too large to fit on one reel, volcopy will prompt for additional reels.  Labels of all reels are checked.  Tapes may  be mounted alternately on two drives. 

The fsname argument represents the mounted name (e.g.: root, u1, etc.)  of the filsystem being copied. 

The special should be the physical disk section or tape (e.g.: /dev/rrp15, /dev/rmt0, etc.). 

The volname is the physical volume name (e.g.: pk3, t0122, etc.)  and should match the external label sticker.  Such label names are limited to five or fewer characters. 

Special1 and volname1 are the device and volume from which the copy of the file system is being extracted.  Special2 and volname2 are the target device and volume. 

Fsname and volname are recorded in the last 12 characters of the superblock (char fsname[6], volname[6];). 

Labelit can be used to provide initial labels for unmounted disk or tape file systems.  With the optional arguments omitted, labelit prints current label values.  The −n option provides for initial labeling of new tapes only (this destroys previous contents). 

FILES

/etc/log/filesavea record of file systems/volumes copied

SEE ALSO

fs(5). 

BUGS

Only device names beginning /dev/rmt are treated as tapes. 

May 16, 1980