SI 02901.740 The External Label
You need to be able to identify the FAX tapes.
Here is what the external label looks like.
| || |
|1||BLKSZ= 7,430 LRECL= 743 01 OF 01 4B9|
|3||TRK=9 DEN=1600 LABEL=01 VOL IS 888774|
|4||RECFM=FB BLKCT= 4,914 SYSTEM=72 88063 |
|5||05 CALIFORNIA FEBRUARY FAX|
|6||021988 ZWFXMTLY 07.31.30 SSA PURE|
Each of the 6 lines is described here.
|1||Block size (7430); Logical record length = (743); number and order of tape reels in shipment (01 of 01); tape unit (4B9).|
|2||Systems-generated identification (ZWMSTFAX.); State code (05).|
|3||Number of tracks (9); recording density (1600); label (01 = standard); volume serial number (888774).|
|4||Record format (fixed block); block count (number of blocks in this reel - 4914); System is SSA's system identification; Julian date the tape was run (88063 = March 3, 1988)|
|5||05 California (identity of State whose tape file this is); February FAX (identity of month)|
|6||Calendar date of last production run used in this month's data; production acronym; time of run expressed in hours, minutes, seconds; in-house acronym |