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Thanks, Tom, this is way cool.
The three fields RDVOLL, RDTRL1, and RDTRL2 are all 80-character fields and
contain the contents of the respective lablels (except that the latter 2
contain the header label when the file continues to the next tape, I think).
But - HOORAY - I found a treasure trove - DMPTAP DEV(TAP01) TYPE(*HDRLBL
*TLRLBL) gives a complete breakdown of the labels - offsets in hex, and
lengths determined from number of characters in apostrophes:
'VOL1VOLXXX0 VERNHAMBERGXXX
'
which would be RDVOLL, is listed as:
Volume identifier . . . . . . . : VOLXXX Volume Label nbr .
. . . . . . : 1
Label length . . .
. . . . . . : 80
(0000) Label type . . . . . . . . . . : 'VOL1'
(0004) Volume identifier . . . . . . : 'VOLXXX'
(000A) Volume security . . . . . . . : '0'
(0025) Owner identifier . . . . . . . : 'VERNHAMBERGXXX'
(004F) Standard version . . . . . . . : ' '
'EOF1CUSTLABLSEVENTEENVOLXXX000100010001000032090040620001174IBMOS400
'
which would be RDTRL1, is listed as
File sequence nbr . . . . . . . : 1 Trailer Label nbr .
. . . . . . : 1
File label ID . . . . . . . . . : CUSTLABLSEVENTEEN Label length . . .
. . . . . . : 80
(0000) Label type . . . . . . . . . . : 'EOF1'
(0004) File label id . . . . . . . . : 'CUSTLABLSEVENTEEN'
(0015) Mvol identifier . . . . . . . : 'VOLXXX'
(001B) Mvol sequence . . . . . . . . : '0001'
(001F) File seqnbr . . . . . . . . . : '0001'
(0023) Generation/version . . . . . . : '0001' / '00'
(0029) Creation date . . . . . . . . : '003209'
(002F) Expiration date . . . . . . . : '004062'
(0035) File security . . . . . . . . : '0'
(0036) File block count . . . . . . . : '001174'
(003C) System identifier . . . . . . : 'IBMOS400 '
At 10:15 PM 7/28/2003 -0400, you wrote:
Vern:
I'm unclear on how DSPTAP *OUTFILE matches up with actual tape labels.
Best might be read a few labels yourself (your programs or dumping
labelled tapes as unlabelled) and start cross-referencing things you recognize.
See if this gives you any help in deciphering:
http://it-div-ds.web.cern.ch/it-div-ds/HO/labels.html
I have an old .RTF document from a section of an old IBM MVS manual that
describes IBM standard volume labels, but it's pretty ugly when trying to
read it in Word 2000.
Searching the Internet, try things like
"format+ibm+standard+volume+label+tape".
Tom Liotta
midrange-l-request@xxxxxxxxxxxx wrote:
> 2. DSPTAP outfile field templates (Vern Hamberg)
>
>I'm using the outfile for DSPTAP DATA(*LABELS). There are 3 fields that
>contain the various labels, 1 for volume and 2 for file information. Does
>anyone know the exact templates for these fileds? I can reverse-engineer
>some of it from the spooled file output.
--
Tom Liotta
The PowerTech Group, Inc.
19426 68th Avenue South
Kent, WA 98032
Phone 253-872-7788 x313
Fax 253-872-7904
http://www.powertechgroup.com
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