Accessing Tape Devices, Print, Line

Accessing Tape Devices

*..	1 ...	+...	2 ...	+	... 3 ...	+	... 4	...+...	5 ...	+...	6 ...	+...	7 ...	+...	*
FFilename++IPEASFRlen+LKlen+AIDevice+.Keywords+++++++++++++++++++++++++++++
FPRINT		O	F	132			PRINTER PRTCTL(LINE)
*..	1 ...	+...	2 ...	+	... 3 ...	+	... 4	...+...	5 ...	+...	6 ...	+...	7 ...	+...	*
DName+++++++++++ETDsFrom+++To/L+++IDc.Keywords+++++++++++++++++++++++++++++
DLINE				DS
D SpBefore					1		3
D SpAfter					4		6
D SkBefore					7		9
D SkAfter					10		12
D CurLine					13		15	0
*..	1 ...	+...	2 ...	+	... 3 ...	+	... 4	...+...	5 ...	+...	6 ...	+...	7 ...	+...	*
CL0N01Factor1+++++++Opcode(E)+Factor2+++++++Result++++++++Len++D+HiLoEq.															...
C					EXCEPT
C	01CurLine				COMP		10							49

C01

CAN

MOVE

'3'

SpAfter

*..

1 ...

+...

...+

... 3 ...

... 4 ...

+...

5 ...

+...

6 ...

+...

7 ...

+...

OFilename++DF..N01N02N03Excnam++++B++A++Sb+Sa+

OPRINT

N01N02N03Field+++++++++YB.End++PConstant/editword/DTformat++

DATA

Figure

161.

Example of the PRTCTL Option

On the file description specifications,

the PRTCTL keyword is specifi

PRINT

file.

The

name

the associated

data

structure is

LINE.

The LINE data structure is defined on

the input specifications as h

subfields

that

are

predefined

for

the

PRTCTL data structure. The f

in positions 1 through 12 are used to

supply space and skip informa

generally

specified

positions

through

the

output specifi

PRTCTL

keyword

allows

you

change

these

specifications

within

the

this

example,

the

value

the

SpAfter

subfield is

changed

the

CurLine (current

line

count

value)

subfield

equal

10.

(Assum

cator

was

set

record

identifying

indicator.)

Accessing Tape Devices

Use the SEQ device specifications whenever you write to a tape fi variable-length records to a tape file, use the RCDBLKFMT parameter of command CRTTAPF or OVRTAPF. When you use the RCDBLKFMT parameter,

the length of each record to be written to tape is determined by

¹	the	highest		end	position specified in the output specifications
¹	if	you	do	not	specify	an end position, the compiler calculates t
	from	the	length		of the	fields.

Read variable-length records from tape just like you would read rec sequentially organized file. Ensure the record length specified on t specification accommodates the longest record in the file.

Chapter 17. Accessing Externally Attached325 Devices

AS/400 specifications

The IBM AS/400, now known as the IBM iSeries, is a midrange computer system that has been a cornerstone of enterprise computing since its introduction in 1988. Designed to provide a robust platform for business applications, the AS/400 is celebrated for its reliability, scalability, and integrated database capabilities.

One of the key features of the AS/400 is its Integrated Operating Environment, which blends hardware and software resources seamlessly. This integration allows businesses to execute diverse workloads, ranging from traditional applications to modern web-based services, all on a single platform. The operating system, OS/400 (now IBM i), offers a rich set of APIs and tools for developers, simplifying application development and management.

Another standout characteristic of the AS/400 is its built-in database, DB2 for i. This powerful relational database management system allows for efficient data handling and provides advanced features such as support for SQL, XML, and JSON, making it easier for businesses to manage their data and integrate it with other systems. The database's tight integration with the operating system enables high performance and security.

In terms of scalability, the AS/400 can accommodate small businesses as well as large enterprises, with the ability to support hundreds of users simultaneously. Its architecture allows for easy upgrades in hardware, meaning that organizations can scale their systems without replacing the entire infrastructure.

Security is another critical attribute of the AS/400. With a sophisticated security model, it offers built-in user authentication, access control, encryption, and auditing capabilities to protect data and applications from unauthorized access.

The AS/400 also supports multiple programming languages, including RPG, COBOL, Java, and PHP, giving organizations the flexibility to choose the development tools that best fit their needs. This diversity helps maintain legacy applications while also developing new ones that leverage modern technologies.

Moreover, the platform supports both traditional green-screen interfaces and modern graphical user interfaces, allowing organizations to transition smoothly into contemporary user experience paradigms.

Overall, the IBM AS/400 stands out as a resilient, flexible, and secure computing platform that enables organizations to effectively manage their business operations, streamline processes, and adapt to changing market demands. Its unique combination of integrated features and capabilities ensures that it remains relevant in today's fast-paced technology landscape.

IBM AS/400 manual Accessing Tape Devices, Print, File Name Associated Data Structure is, Line

Models: AS/400

Accessing Tape Devices

FPRINT

DLINE

MOVE

PRINT

file.

name

the associated

data

structure is

LINE.

Accessing Tape Devices

AS/400 specifications