Directory Program
devtype is the device type: IBM TELE 2701 2702 2703 3138 (virtual 3138 console)
3148 (virtual 3148 console)
3158 (virtu al 3158 console) 3270 (virtual 3270 only)
CTCA (channel-to-channel adapter) TIl!ER (pseudo-timer device)
valid only if devtype is 2701, 2702, or 2703 For example, a virtual machine executing a multiple-access
system that supports four IBM Type 1 adapter lines, would have
four SPECIAL entries, one for each of those addresses. This
provides a virtual 270x line to allow a user to dial to this
multiple-access system rather than logging on as a separate
virtual machine. No!e: The Integrated Communications Attachment (rCA) on the System/370 Models 135, 135-3, or 138 should be specified as a 2701. DIRECTORY ENTRIES FOR Cl!S/DOS The DOS/VS system and private libraries are accessed in mode
under Cl!S/DOS. If more than one CMS virtual machine 1S uS1ng the Cl!S/DOS environment, you should update the V8/370 directory entries so
that the DOS/VS system residence volume and the DOS/VS private libraries
are shared by all the CMS/DOS users.
The VM/370 directory entry for one of the Cl!S virtual machines should
contain the MDISK statements defining the DOS/VS volumes. The VM/370 directory entries for the other Cl!S/DOS users should contain LINK statements. For example, assume the DOS/VS system libraries are on cylinders 0-14Q of a 3330 volume labeled DOSRES. Also, assume the DOS/VS private
libraries are on cylinders 0-99 of a 2314 volume labeled DOSPRI. Then
one CMS machine (for example, DOSUSER1) would have the MDISK statements
in its directory entry. USER DOSUSER1 password 320K 2M G MDISK 331 3330 0 150 DOSRES R rpass MDISK 231 2314 0 100 DOSPRI R rpass All the other CMS/DOS users would have links to these disks. For
example
LINK DOSUSER1 331 331 R rpass LINK DOSUSER1 231 231 R rpass
For more information about directory entries for CMS/DOS virtual
machines, see the Ope£ating in Part 2. Defining Your VM/370 System 215

216 IBM VM/370 Planning and System Generation Guide