It had some small effect, back when RPS delay was a signivicant factor.
I still allocate directories in full track amounts, but mostly from
force of habit. I can't see that it does any harm, and the allocations
that come from IBM and OEM software providers aren't always large enough
to apply maintenance or upgrades. Call me "Old Fashioned" if you like; I
don't care. <G>
Eric Bielefeld wrote:
I thought that long ago when the old 3380 & 3390 dasd was current, that
allocating the PDS directory on either a track or cylinder boundary had some
advantages. At least that's what I remember.
Eric Bielefeld
On Sat, 12 May 2007 01:34:38 +0100, Tony <[EMAIL PROTECTED]> wrote:
I don't know the answer. It may be in a Redbook.
I doubt it. I've never seen any reccomendation that directories be
allocated so that they will fill up tracks.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
