According to prior discussions on this list, 44 blocks is optimal for the last track of the directory. 45 blocks will fit on a 3390 track, with the directory EOF block still needing to be taken into account. If you use 45 blocks, then your directory will take 2 tracks due to the EOF entry. So I use a multiple of 45 less 1 when deciding how many directory blocks I want for a PDS.
On Fri, 11 May 2007 15:20:11 -0500, Tom Marchant <[EMAIL PROTECTED]> wrote: >On Fri, 11 May 2007 21:57:08 +0200, R.S. wrote: > >>IMHO 46 blocks would fit in single track. However I still don't get why >>it's important at all. Can you enlight me ? > >I'm not sure how many PDS directory blocks will fit on a track, but I don't see >why it's important either. IIRC, the remainder of the last directory track will >be used for data. In any case, I see no reason to make the directory larger >just to make it fill the last track. > >-- >Tom Marchant ---------------------------------------------------------------------- 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
