User`s guide

BACKUP
The second number indicates how many sections a saveset file is
divided into. For example, a 1/1 for saveset number information means
the saveset is undivided and the entire saveset file is on that volume.
However, a 1/2 means the saveset file is divided into two sections (since
it did not fit on the volume), and the first section is contained on that
backup volume.
In this case, the last saveset on the diskette, RUNOFF.BUP, is spread
across five volumes.
3
The first number under blocks lists the size in blocks of a saveset
section on the backup volume. The second number lists the total size
of the saveset. If the two numbers are the same, the entire saveset is
on that volume.
4
The date on which a saveset is backed up to a backup volume is listed
next. If no system date is set, no creation date is entered in the
directory.
b. The following example is of a backup magtape directory. The magtape
backup volume contains the second section (2348 blocks) of a 5400-
block saveset named BIGDSK.BUP, the complete savesets FIRST.TXT
and SECOND.BUP, and the first (409-block) section of a 988-block saveset
THIRD.BUP.
.BACKUP/DIRECTORY MU0:
RT-11 BACKUP
05-May-91 16:40
Saveset Section Blocks Date
BIGDSK.BUP 2 2348/5400 20-Mar-91
FIRST .TXT 1 800/800 20-Mar-91
SECOND.BUP 1 5400/5400 21-Mar-91
THIRD .BUP 1 409/988 26-Mar-91
4 Saveset sections, 8957 Blocks
You would need to mount a previous magtape in this series to restore
the saveset BIGDSK.BUP, because the first section of that saveset is not
located on this volume. A printed directory of savesets for each magtape
backup volume would direct you to the correct volume to mount. You can
restore the savesets FIRST.TXT and SECOND.BUP from this volume.
Proceed to the next magtape volume of this series to restore the second
section of THIRD.BUP.
2. Listing a directory of files in a saveset
To get a directory of a saveset, you must specify the [ssname]/SAVESET option
with the /DIRECTORY option. The saveset name specifies the saveset for
which you want a file directory.
RT–11 Command Descriptions 15