Isn't the space used/available more important than the model? When I did DASD Capacity Planning I only cared about space and perf.
Usually, space won. I just did a CYL count and divide, on the pool/storage group level. And, hot spots. When you have over 20TB (albeit 10 years ago) the size of a single volume is next t irrelevant. - Ted MacNEIL [email protected] Twitter: @TedMacNEIL -----Original Message----- From: Doug Fuerst <[email protected]> Sender: IBM Mainframe Discussion List <[email protected]> Date: Fri, 15 Feb 2013 19:36:33 To: <[email protected]> Reply-To: IBM Mainframe Discussion List <[email protected]> Subject: Re: Determining 3390 Model 50,000 tracks = Mod 3 150,000 tracks = Mod 9 Figure out the rest from there. Doug On 2/15/2013 6:47 PM, Mike Schwab wrote: > Divide the Cylinder count by 1113. > > On Fri, Feb 15, 2013 at 5:13 PM, Skip Robinson <[email protected]> > wrote: >> We have an old TSO command call SPACE that gives a quick display of online >> DASD, tape, and some other stuff. It reports a DASD device as 3390-xx >> based on a table lookup using some data in the returned UCB. This command >> never reports a device as bigger than a Mod-9 even though the capacity may >> be several times that, e.g. Mod-27 or Mod-54 in common (though unofficial) >> parlance. It appears that nothing in the UCB indicates Mod->9, so the >> command may need to be modified to calculate a mythical model number based >> cylinder capacity, which SPACE does report accurately. Any advice? >> >> JO.Skip Robinson ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
