> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Chris Steffens > Sent: Monday, July 02, 2007 11:26 AM > To: [email protected] > Subject: Re: 9840C allocations on z/OS 1.7 > > > They are standalone. > > Thank you >
If you have a mixture of incompatable drives, but which are defined the same in the HCD, then the only way that I know of to separate them so that allocation will only allocate 9840C drives for 9840C media and 3590E drives for 3590E media is to make the drives part of separate "Manual Tape Libraries". This is the MTL field in the HCD when you "connect" the drives to a particular z/OS image. You must define two tape storage groups to SMS. I would also create two storage classes, each mapping in the ACS routines to a corresponding tape storage group. For example, create storage groups SG9480C and SG3590E. Create storage classes SC98480C and SC3590E as well. In the STORGRP ACS routine, assign SG9480C when the storclas='SC9480C' and SG3590E when STORCLAS='SC3590E'. You might also want to create two ESOTERIC names as well, say T9480C and T3590E. When creating a new dataset, //NEWDS DD DSN=NEW.TAPE,DISP=(NEW,CATLG), // STORCLAS=SC9480C, CREATE ON 9480C DRIVE // LABEL=RETPD=30 FOR EXAMPLE //* //NEWDS2 DD DSN=NEW.TAPE2,DISP=(NEW,CATLG), // STORCLAS=SC3590E, CREATE ON 3590E DRIVE // LABEL=RETPD=30 FOR EXAMPLE What an MTL does, which ESOTERICS cannot do as easily is allow: //OLDDS DD DSN=NEW.TAPE,DISP=OLD However, using ESOTERICS, it may be possible to do (I'm not really sure): //OLDDS DD DSN=NEW.TAPE,DISP=OLD,UNIT=T9480C One possible problem is that using an MTL requires certain hardware capabilities. I know that 3590E drives and controller have these capabilities. I know nothing about 9840C drives and controllers. I do know of an ETR on IBM in which a person could not use MTL because the emulated tape (some UNIX-based VTS) did not properly emulate the controller. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- 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
