Rick Fochtman wrote:
-------------------------<snip>------------------
I think everyone agrees that directory should have safe margin for
updates. However the discussion was about magic numbers like 44,45, or
46. Spare directory blocks are obvious, any of the numbers above not.
Despite of discussion noone explained why these numbers (or at least any
of them) are so magic. Hint: "fit in the track" is absolutely not
reasonable.
------------------------<unsnip>----------------
Why is "Fit in the track" unreasonable? I regard it as efficient use of
space.
Yes, it *totally* unreasonable. I mean it.
It has nothing to do with efficient use of space. It was proved that rest of the track can be used for members storage.
So, If I need 100 or 200 or 1340 blocks, there is no reason to round it to multiple 44 or 45 or (n*45+44). If I need 20 blocks, there is still no need to round it to 44.
Last, but not least: we talk about efficient use of *fraction of track*. It is simply
*not worth* to discuss. I simply don't care about wasted track in my PDS. Even if I have
100 or 1000 PDSes. All we agreed (any objection?) that directory should be "safely
oversized" to avoid out-of-directory problems. Usually spare blocks occupy more than
track.
Last but not least: It's funny that people take care about "holy numbers", but
there are different religions: some adore 44, others worship 45, others 46, others
n*45+44...
--
Radoslaw Skorupka
Lodz, Poland
--
BRE Bank SA
ul. Senatorska 18
00-950 Warszawa
www.brebank.pl
Sd Rejonowy dla m. st. Warszawy
XII Wydzia Gospodarczy Krajowego Rejestru Sdowego,
nr rejestru przedsibiorców KRS 0000025237
NIP: 526-021-50-88
Wedug stanu na dzie 01.01.2007 r. kapita zakadowy BRE Banku SA (w caoci
opacony) wynosi 118.064.140 z. W zwizku z realizacj warunkowego
podwyszenia kapitau zakadowego, na podstawie uchwa XVI WZ z dnia 21.05.2003
r., kapita zakadowy BRE Banku SA moe ulec podwyszeniu do kwoty 118.760.528
z. Akcje w podwyszonym kapitale zakadowym bd w caoci opacone.
----------------------------------------------------------------------
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
