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