.PAPER SIZE 60,72
.LEFT MARGIN 9
.FIRST TITLE;LBC - Logical Block Copy for RSX -- Version: 89.237

.LEFT MARGIN +8

.BLANK;.INDENT -8
Author: T. R. Wyant III, E. I. DuPont de Nemours, Richmond, VA.

.BLANK;.INDENT -8
Operating system: RSX-11M+ V3.0 forward. Other RSX systems with
reduced functionality. 

.BLANK;.INDENT -8
Language: FORTRAN-77, MACRO-11

.BLANK;.INDENT -8
Memory Required: 32KW

.BLANK;.INDENT -8
Other Hardware Required: None

.BLANK;.INDENT -8
Keywords: Utilities - RSX11

.BLANK;.LEFT MARGIN -8
Abstract:
.BLANK
LBC provides a non-structured disk copy facility for
direct-access media under RSX. All or part of a disk (mounted
foreign) or a file may be copied to another disk or file, or to
another location on the same disk or file. In the case of
file-to-file operations, the attributes of the input file can be
preserved. Because up to 64 blocks are moved at a time,
performance is reasonable. Error recovery is done by reducing
the number of blocks per QIO and retrying the operation; if a
single-block QIO fails, the error is logged and a block is
skipped on both input and output. 
.BLANK
LBC can be invoked in any of the standard ways for an RSX 
utility. The command interface is DCL-like, and includes 
prompts for missing information.
.BLANK
Full default file name support as documented requires the PRMS$
directive (ie - RSX-11M+ V3.0 or greater). Older M+ systems, or 
M systems, require more typing but should work otherwise.
.BLANK
This release includes two minor bug fixes: the highest logical
block number for a disk was calculated incorrectly in the
previous release (88.126), and the call to PRSRMS was bypassed
for 11M. Otherwise, the two are identical.