IBM System/370 145 Manual page 221

• Control program support of block multiplexing and rotational
position sensing, as discussed in section 30; if requested
• support of
user~specified
new I/O devices and Model 145 operator
consoles, including a remote 3210 as an alternate or additional
console
• Support of the interval tim.er and time of day clock
• Support of certain new System/370 instructions by Assembler
F
• The required interface to the integrated emulator program specified
at system generation, if any
If integrated emulator programs are to be used, the steps outlined in
section 40 must be taken in order to convert from a 1400/7010 system or
from current stand-alone emulation procedures.
EXISTING OS PROCESSING PROGRAMS AND JOB CONTROL
IBM-supplied OS Type I proce:ssing programs and OS nonapplication-
oriented program products (language translators, utilities, etc.) will
run on the System/370 Model 145 (in BC mode) without alteration.
subject to the exceptions stated. in section 10:05, user-written OS
processing programs and certain IBM-supplied industry-oriented (Type II
and program product) programs for.OS that operate on Models 30 and 40
will also execute correctly on the Model 145 (in BC mode). Modification
and reassembly of existing user'-written OS processing programs are not
required unless new processing .is to
be
added or existing processing is
to be altered. Modification of the job control for these processing
programs is required if I/O device type is changed (from 1403 to 3211,
for example), if direct access :space allocation changes, if a
DCB
parameter is to be altered_ etc. Conversion from an
MFr
to an MVT
environment will also necessita,te job control statement alterations.
I/O device type changes do not necessitate processing program
alterations unless device-depen~flent macros have been used, data
organization is changed, or a
DeB parameter that is specified in' the
program is ·to
be
changed.
CONVERSION TO 3330-SERIES AND 2:305 DISK STORAGE
Conversion from currently installed direct access devices to the
3330-series involves the same pJ["ocedures that are required now to change
from one disk device to another" say from 2311s to a 2314. Existing
disk data sets can be placed on 3336 Disk Packs, using an IBM-supplied
utility in most cases. Assumin9 that data organization is not changed,
consideration should be given to altering the block size used and the
amount of space allocated toth4:! data set. The location and size of
each type area in an ISAM data ~3et should be altered, taking into
account 3336 Model 1 Disk Pack
~::haracteristics,.
These changes can be
made in job control statements.
sequentially organized data sets (processed by QSAM or BSAM) and
partitioned data sets can be copied from the source direct access device
directly to the 3330-series drive, using the OS IEHMOVE utility. Or
they can be copied to tape and 1then to the 3330-series drive, using the
same utility (if the source dir4:!ct access device type is not present in
the Model 145 configuration).
Indexed sequential data sets can be copied directly from the source
direct access device to the 3330-series drive, using the IEBISAM
utility. Alternatively, they can be unloaded to tape and then reloaded,
A Guide to the IBM System/370 Model 145 211