> -----Original Message-----
> From: Linux on 390 Port On Behalf Of John McKown
>
> On Wed, 8 Oct 2008, Larry Ploetz wrote:
>
> <snip>
> > - Larry
> >
> > PS wow, I guess it's been a while since I've touched MVS...ah, z/OS
-
> -
> > lrecl 1, blocksize 0?!?
>
> Well, that is my own weird idea of how to store "byte stream" data.
The
> RECFM=FB says that it is fixed blocked. LRECL=1 because it is a "byte
> stream" (no real records in the z/OS sense). The BLKSIZE=0 is somewhat
> new. It tells z/OS: "Look at the device and use the optimal BLKSIZE
for
> that specific device." Instead of "hard coding". z/OS usually picks
1/2
> track blocking on DASD and 32760 on tape.
How many I/Os would it take to read/write, say, the U.S. Declaration of
Independence?
-jc-
----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390
