The EAV allocates in 21 cylinder chucks, and the VTOC size depends on the number of datasets. Recommendations for Mod 54 should work. The max VTOC sizes were bases on filling with single track datasets, growth in the EAV area would be 1/315 of the track allocation area.
On Wed, May 21, 2025 at 7:41 PM Paul Feller < [email protected]> wrote: > I would agree with Peter. Unfortunately, the FM manuals seem to be a > little > thin on examples of the VTOC panels when the disk is an EAV. I know FM > supports it because I used it at the last place I worked. We had several > EAV volumes and I used FM to see how the volumes got used. > > The VTOC display would break down the track managed area and the cylinder > managed area. > > I don't know if this will help, but here is how you can get help from > within > FM. This is from the IBM File Manager for z/OSR User's Guide and Reference > Version 16.1.0. I believe the same process would work with older versions. > > Getting help > File Manager offers two levels of help information: context-sensitive field > information and Tutorial Help. The field help information provides a > description of your current field, lists the valid values or range of > values > that can be entered, and gives the default field value where applicable. > Tutorial Help is a context-sensitive help system that provides detailed > explanations of the File Manager panels and the processes in which they are > used. In addition, all error messages have an associated full text > explanation, which can help you to determine the cause of a problem. > > Displaying field help information > To display the field help information: > 1. Place your cursor on the field entry line. > 2. Press the Help function key (F1). The field help information is > displayed > in a pop-up window. > > If further information is needed, press the Extended Help function key > (F5), to access the Tutorial Help page for the current panel. > > Pressing Help while the field information window is displayed takes you > to > the Help Tutorial page within the Tutorial > > Help system (that is, the page that describes how to use Tutorial Help). > > 3. When you have finished reading the message or the relevant Tutorial Help > page, press the Exit function key (F3) to return to your starting panel. > > > Paul > > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf > Of > Farley, Peter > Sent: Wednesday, May 21, 2025 6:49 PM > To: [email protected] > Subject: Re: Volume Summary from IBM File Manager > > SWAG without looking up the FM docs - TM == Track Managed, CM == Cylinder > Managed. Given the very large "tracks used" values in that display I'm > assuming that is an EAV volume. > > Peter > > From: IBM Mainframe Discussion List <[email protected]> On Behalf > Of > Frank Swarbrick > Sent: Wednesday, May 21, 2025 7:39 PM > To: [email protected] > Subject: Volume Summary from IBM File Manager > > I can't find anywhere in the documentation describing what each of these > fields/labels represent. I guess most are obvious, but what do "TM" and > "CM" mean in this context? Also, how do I convert tracks/cylinders to > bytes? One website says 56,664 bytes per track. Others say it depends on > "disk type". These all seem to be defined as 3390, and another website > says > all 3390 models have 56,664 per track. I just want to make sure that is > accurate. > > (No, I am not a sysprog.) > > > File Manager Volume Summary > > > > Unit * DSN '**' > > DevType * VOLSTATE ALL SMS SG * > > Volumes 217 TM Data Sets N/A VSAM N/A non-VSAM N/A > > CM Vols 2 TM Data Sets N/A VSAM N/A non-VSAM N/A > > VOLSER BK* TM Trks used 196690529 Free 16008181 Utilized 92% > > CM Cyls used 7308 Free 386988 Utilized 2% > > Tot Trk used 196800149 Free 21813001 Utilized 90% > -- > > This message and any attachments are intended only for the use of the > addressee and may contain information that is privileged and confidential. > If the reader of the message is not the intended recipient or an authorized > representative of the intended recipient, you are hereby notified that any > dissemination of this communication is strictly prohibited. If you have > received this communication in error, please notify us immediately by > e-mail > and delete the message and any attachments from your system. > > ---------------------------------------------------------------------- > 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 > -- 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 [email protected] with the message: INFO IBM-MAIN
