IPL 5. Any logical lines following the 1PL command are ignored since the execution of the IPL command transfers control from the CP environment to the virtual machine environment.
6. Some CMS routines and programs are stored on disks and loaded into storage as needed. Since this storage area is not contiguous with your virtual storage, the saved segments that are loaded in this area are called discontiguous segments (DCSS). However, the only saved segment a CMS user can replace is the CftSSE3 seqment. The user can indicate an alternate segment to be loaded bV issuinq an IPL command with this format: IPL {CUU .} PARM SEG=segmentname
indicates the name of the saved segment to be loaded whenever
the CMS Editor, EXEC processor, or as simulation routines are
needed. Eiqht characters must be entered for segmentname;
either assiqn an 8-character segment name when you code the macro for your installation, or be sure that the
operator enters trailing blanks if segment name is less than eight characters long.
The CMS batch facility loads whatever segment is specified
on the first IPL command issued for the batch virtual machine. Thus, if the first 1PL command for a CKS batch facility machine is: 1Pt CMS PARM SEG=CMSSEG02 all subsequent IPL commands issuej by the CftS batch facility specify the same segment name (CMSSEG02). 7. The option in the PARM operand indicates that the :ftS initial proqram load is beinq performed in a batch instead of an int.eractive virtual machine. This option causes the :KS nucleus to issue the CMSBATCH command to load the batch processor. Specifying
the option eliminates the need for operator intervention
between jobs. Consult VM/370 gng for
information on the CMSBATCH facility.
8. CMS users can use the PARM operand to pass the AUTO:R (automatic
carriage return) option to the CMS initialization routine. AUTOCR simulates the pressing of the ENTER key as input to the virtual
machine. This results in automatic execution of the user's PROFILE EXEC, if it exists on virtual minidisk 191.
Note: For a disconnected CMS service virtual machine, this mechanism can prove to be very useful. The name of a :MS restart may be specified in the CMS nucleus. In the event of an
ABEND, the specified restart routine receives control instead of
the service virtual machine entering a disabled wait state. If
this routine issues an 1PL eMS PARM AUTOCR command, the PROFILE EXEC executes initial setup procedures that allow the service virtual machine to reestablish itself.
After a successful 1Pt, any responses you receive are those from the operating system that was loaded and initialized. 90 VM/370 CP Reference for General Users
LINK Use the command to make a device that is associated with another
virtual ava1laDle to your configuration, based
upon information in that user's VM/370 directory entry. The format of
the LINK command is:
\ LINK [Tol userid vaddr1 (Asl vaddr2 [mode] [[PASS=] passwqrd 1 ]
\ I1If your installation is using the password suppression facility, an I INVALID message is issued when a user attempts to enter the
\ for a DASD device on the LINK command line. The user must I wait for the EN1ER PASSWORD response before typing in the password. I This facility improves system security because the password I is automatically masked.
L [TOl userid
is the name of the user whose directory is to be
searched for device vaddr1. An asterisk (*) is used to specify
that the device is in your own VM/370 directory. If the keyword TO is omitted, the userid may not be "TO" or "T".
is the virtual device address (cuu) in the VM/370 directory
for that userid. [ASl vaddr2 mode
is the virtual address (cuu) that is to be assigned to the ievice for vour virtual machine. If the keyword AS is omitted, vaddr may not be "AS" or "A". If your virtual machine has the option, any address up to X'FPF' is valid; otherwise, any address up to X'5FP' is valid.
is the access mode; the primary access requested (read-only, write; or multiple) I and the alternate access (read-only or write) desired if the primary access is not available. Valid modes are: R access. The link is not done if any other user
has the disk in write status. R is the default mode if
the link is to another userid.
RR Read-onlv access. The link is established even if another
user has the disk in write status. w write access. The link is not done if any other user has the disk in read or write status. WR write and read access. If another user has the disk in
read or write status, an alternate access of read-only is
acceptable. M access. This means that a write-link is to be
given to the disk unless another user already has write
access to it, in which case no link is to be done.
section 5. Format of CP Commands 91
Previous Page Next Page