On Tue, Apr 20, 2021 at 06:14:30PM +0000, Seymour J Metz wrote:
> The sample I saw included what looked like valid BDWs and RDWs. If it
> is not missing records then it should work with a DCB override.
I didn't see that -- I think they may be missing. It starts:
00000000: 00ca 6d0f 0200 18b0 0050 9000 0080 7ff8 ..m......P......
00000010: 3030 200f 0000 7ff8 2721 000f e5a2 0000 00 .....'!......
00000020: 2252 0000 0002 006b 00de 0000 0080 0000 "R.....k........
00000030: 0100 0b07 6930 0000 0100 0000 ff00 0000 ....i0..........
00000040: 8f00 8000 048b 80c8 58f4 4400 0000 01af ........X.D.....
00000050: 0000 01af 000b 000c 0000 0000 0000 0000 ................
00000060: 0000 0000 0000 0000 0000 0000 0000 0000 ................
But the ca6d0f at +1 should be at offset 9 counting the BDW/RDW.
IEBCOPY unload format:
Figure 116. Contents of the COPYR1 Descriptor Record
� 0 � 4 � Structure � Block Descriptor Word �
� � � � (BDW) for RECFM=VS �
� � � � data sets �
� 4 � 4 � Structure � Segment Descriptor �
� � � � Word (SDW) for �
� � � � RECFM=VS data sets �
� 8 � 1 � Bit Flags � Unload Data set �
� � � � Information.
� 9 � 3 � Binary � The constant value �
� � � � X'CA6D0F'.
IEBCOPY dumps the DASD count files too though and they contain the
block length.
What else is mangled would take more data.
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