And if you switch to GB, a storage group with one Mod 9 shows up as 7
GB in z/OS 1.13.
The DCollect records are calculated by the Track size in bytes *
number of tracks, divided by 1024, and stored.  To determine the
number of cylinders from this size, I add 1 and divide by a slightly
smaller size.  Otherwise the Mod 29's are off by a cylinder.  I wish
they would truncate at the bytes in a cylinder, so that every volume
size is an exact multiple of that number.

On Thu, Jan 23, 2014 at 2:52 PM, Neil Duffee <nduf...@uottawa.ca> wrote:
> [insert Digest caveat]
>
> Well, will you look at that!  *grin*  I seem to recall that the panels were, 
> at one time/version, in KB but I notice my current v1.12 help does, indeed, 
> indicate MB.  In fact, it also indicates they're not using the 1E6 factor 
> but, rather, "MB is 1,048,576 bytes."  At any rate, I suspect Willie is more 
> trusting, now, of his ISMF panels.
>
> -------->  signature = 6 lines follows  <--------
> Neil Duffee, Joe Sysprog, uOttawa, Ottawa, Ont, Canada
> telephone:1 613 562 5800 x4585                  fax:1 613 562 5161
> mailto:NDuffee of uOttawa.ca     http:/ /aix1.uOttawa.ca/ ~nduffee
> "How *do* you plan for something like that?"  Guardian Bob, Reboot
> "For every action, there is an equal and opposite criticism."
> "Systems Programming: Guilty, until proven innocent"  John Norgauer 2004
>
> -----Original Message-----
> From: Vernooij, CP (SPLXM) - KLM [mailto:kee...ver....@kl...com]
> Sent: January 21, 2014 02:32
> Subject: Re: ISMF QUESTIONS - VIEWING STORAGE GROUP STATS
>
> I responsed.
> It's Mbytes, as your calculation proves mathematically: x kB/1000 = y MB.
>
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On 
> Behalf Of Neil Duffee
> Sent: Monday, January 20, 2014 22:16
>
> Caveat:  I get the daily digest so there is a lag between responses...
>
> Willie:  I didn't see any response so...  Panel values are in Kb. (F1 Help) 
> 18061 / 24360 = 0.74... so correct.  30,051 cyl * (15 trks * 55k bytes / 
> 1,000) = 24792 Kb so (approx.) correct.
>
> -----Original Message-----
> From: willie bunter [mailto:wi...@yah...com]
> Sent: January 17, 2014 09:44
> Subject: Re: ISMF QUESTIONS - VIEWING STORAGE GROUP STATS
>
> [snip] Last question.  Are the stats posted by ISMF reliable?  It is because 
> this particular storage group has TOTAL SPACE 24360  FREE SPACE 18061 AND 
> %FREE SPACE 74.  That doesn't sound right  This pool has 3 mod 9 each has 
> 10017 cylinders for a total of 30051 cylinders.
> [snip]
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN



-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Reply via email to