110902     Routine Backup Facilitator  Version: 1.0, March 1988
 
Submitted by: Richard Desper, Army Materials Technology Lab.,
Watertown, MA
 
Operating System: RT-11 V5.0  Source Language: IND  Memory Required:
56K  Software Required: IND.SAV  Keywords: Utilities - Disk - RT-11
 
Abstract: This pair of IND files, FULLBAK.COM and PARBAK.COM, smoothly
leads you through RT-11 to perform disk backups.  The two
files perform the following tasks:
FULLBAK.COM 	Writes full backups from a large disk
		(default: DL0) to a magnetic tape
		unit (default: MT0), supporting possible
		multi-volume output.
PARBAK.COM 	Writes partial backups of the same
		large disk to a smaller removeable media
		disk (default: DY0), consisting of all
		files since the date of the last full backup.
Directory listings and dates of the most recent full and partial
backups are maintained on DY0 along with the most recent partial
backup.  Devices definitions may be changed readily by editing
the .COM files.  More extensive comments are available in the
file COMENT.LST.
 
A separate removeable output disk (e.g., DY0) should
be supported for each device (e.g., DL0) to be backed
up to receive data specific to that device.  FULLBAK.COM AND
PARBAK.COM may optionally reside on this disk as well.
 
The partial backup will fail when the size of the partial
backup exceeds a limit (about 900 blocks for DY0) on partial
output device.  The partial backup will not copy undated
files, nor will it copy recent files within a logical disk
file on DL0 where the logical disk file itself bears an
earlier date.  Also, the partial backup procedure
temporarily defines logical disk LD3, causing potential
conflict with user definition of LD3.  COMENT.LST offers
remedies for all of these restrictions.
 
Notes: Operating system RT-11 V5.0 or higher is required.  Defines,
uses logical
disk LD3.
 
Restrictions: Partial backups limited to size of partial backup
volume.  Undated files not
copied in partial backup.
 
Media (Service Charge Code): One RX01 Diskette (KA)  Format: RT-11,
600' Magnetic Tape (MA)  Format: RT-11