Pg. of GC20-1819-2 Rev March 30, 1979 by Supp. SD23-9024-1 for 5748-118 dlbl newfile b (extent sys001 DMSDLB331R ENTER EXTENT SPECIFICATIONS: 100 60, 400 80, 60 40 d sys003, 2000 100 c sys002 (null line)
Any extents you enter without specifying a .ode letter andSYSxxx value
default tothe mode and SYSxxx on the DLBL command line, in this case,
theB-disk
l SYS001. If you make any errors issuing the DLEL command or extent
information, you must re-enter the entire command sequence.IDENTIFYING EXISTING When you issue a DLBL command to IdentIfy-an exIstIng multivolume VSAM file, you must use the MULT option
of the DLBL command:
dlbl old b1 dsn ?(sys002 mult DMSDLB220R ENTER DATA SET NAME:
dostest.fileDMSDLB330R ENTER VOLUME SPECIFICATIONS: c sys004, d sys003 e sys007 (null line) When you enter the DLBL command you should specify the mode letter and
logical unit for the first volume on the command line.When you enter
theMULT opticn you are prompted to enter additional sFecifications for
the remaining extents. In the precedingexamFle, the data set has
extents on disks accessed as B-, C-, D-, and E-disks.USING TAPE INPUT AND OUTPUT If you are using AMSERV for a function that requires tape input and/or
output, you must have the tape(s) attached to your virtual machine. The
valid addresses for tapes are 181, 182, 183, and 184.When referring to
tapes, you can also refer to them using theirCMS symtolic names TAP1,
TAP2, TAP3, and TAP4.
ForAMSERV functions that use tape input/output, the TLBL control
statement is simulated by building adummy DLBL containing a
user-supplied ddname (filename).CMS does not read tape labels and does
not recognize tape data set names.When you invoke the AMSERV command, you must use the TAPII or TAPOUT option to specify the tape device being used:
amserv export (tapout 181
In this examFle, the output from theAMSERV control statements in a file
namedEXPORT goes to a tape at virtual address 181. CMS prompts you to
enter the ddname:DMSAMS367R ENTER TAPE OUTPUT DDNAMES: After you enter the ddname specified on the FILE parameter in the AMSERV file and press the carriage return, the AMSERV command executes. AMSERV opens all tape files as standard labelled tapes (FILAB=STD on
theDTFMT macro). Therefore, you need a LABELDEF command for any tape
file used for input or output withAMSERV. The LABELDEF command is the CMS/DOS equivalent of the DOS/VSE TLB control statement. The LABELDEF
command is used to specifyinformation in VOL1 and HDR1 labels on the
196IBM VM/370 eMS User's Guide
Any extents you enter without specifying a .ode letter and
default to
the
l
information, you must re-enter the entire command sequence.
of the DLBL command:
dlbl old b1 dsn ?
dostest.file
logical unit for the first volume on the command line.
the
the remaining extents. In the preceding
extents on disks accessed as B-, C-, D-, and E-disks.
output, you must have the tape(s) attached to your virtual machine. The
valid addresses for tapes are 181, 182, 183, and 184.
tapes, you can also refer to them using their
TAP2, TAP3, and TAP4.
For
statement is simulated by building a
user-supplied ddname (filename).
not recognize tape data set names.
amserv export (tapout 181
In this examFle, the output from the
named
enter the ddname:
the
file used for input or output with
command is used to specify
196