In <[EMAIL PROTECTED]>, on 02/25/2008
at 08:51 AM, "R.S." <[EMAIL PROTECTED]> said:
>No. First - when you calculate number of blocks, you have to take into
>consideration many physical aspects of data storing, like Count field,
>gaps, data cell size, data cell existence, track size, R0, etc
Only if you're doing it yourself instead of using the IBM provided
services, which take those into account for you.
>I don't know TRKALC,
Indeed.
>but I can imagine, that program assuming there is no Key
I can imagine the sun turning into a banana.
>However it doesn't change the fact
Repeating an assertion doesn't make it a fact.
>Contrary to VTOC the Key in directory contains redundant, "index"
>information only
BSAM doesn't distinguish between redundant and non-redundant keys. If the
key doesn't count for a directory then it doesn't count for a VTOC.
>Saying directory block is 254 bytes is plain incorrect, because it's
>not. The byte, you mention is part of the content.
As is the key.
>According to documentation, you can read directory sequentially by
>providing LRECL=256. Again - 256.
What do you specify to read a VTOC?
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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