HP BACKCOPY User Manual

UNPAK [-i] archive,@fileset [,restore-options...]
RUN archive [-i] @fileset [,restore-options...]
UNPAK and self-extracting archives also accept these run options:
-restore restore-program
specifies the RESTORE object file to be used. The default is $SYSTEM.SYSnn.RESTORE.
-password password
specifies the password for an encrypted archive.
Considerations
• PAK compresses files to a single unstructured archive file (code 1729).
• PAK compresses files one record at a time so better compression is achieved with longer block
sizes (for example, use BLOCKSIZE 28).
• The self-extracting archive created by PAK is a code 700 file.
• The owner and security of extracted files is the same as for the original files (unless you use
MYID). Therefore, it is important to use the MYID option to ensure you can access the extracted
files.
• Complete syntax, including BACKUP and RESTORE options and qualified file-set syntax, is
available in the PAK/UNPAK online help.
• PAK compresses files only from one node at a time. The node can be different than the one
PAK is running on.
• You cannot use PAK on OSS files.
• The -ext and -max options determine the maximum size of the archive file or each file for
multifile archives. Using the defaults for each (extent-size is 72 pages, maxextents is
900) results in a maximum archive file size of about 132 MB (132,710,400 bytes). When
specifying these two values, you must ensure that the maximum archive file size is less than
4 GB (extent-size * maxextents must be less than 2,097,000). Otherwise, when PAK
tries to open the file, it returns error 580.
If you also use the -split option, the maximum size of a single archive file is 2 GB
(2,147,483,647 bytes).
• PAK cannot compress OPEN files if the files are opened exclusively. To PAK files opened for
write, you can use the SHARE option but the resulting PAK file might be corrupted. For example,
you cannot use PAK on edit files opened in read/write mode by EDIT or TEDIT.
• In addition to their own messages, PAK and UNPAK can display any BACKUP or RESTORE
messages during their processing.
• Syntax errors in BACKUP/RESTORE commands are not noticed until the BACKUP or RESTORE
process starts.
• If a PAK or UNPAK operation fails for any reason, the program displays an appropriate
message and stops with completion code 2. For an internal error, the program abends and
produces a saveabend file ZZSAnnnn if Inspect is running.
• If a PAK operation fails and displays the message Error 45 when writing to file
filename, verify that the split size specified in the PAK options is approximately 2 GB. Also,
ensure that the split size is less than the archive file size by around 300 KB.
• The PAK or UNPAK operation used with the /OUT option logs entries for files that are packed
in the output file specified in the operation. The output file contains information about the PAK
or UNPAK utility and a description for each packed or unpacked file.
A PAK or UNPAK operation can log entries up to 99999 lines in the output file. If total number
of files to be packed or unpacked needs more than 99,999 lines for logging, PAK or UNPAK
Considerations 121

HP BACKCOPY Specifications

General

Brand	HP
Model	BACKCOPY
Category	Software
Language	English

Summary

Abstract

What’s New in This Manual

Manual Information

Information about the manual's version, history, and product details.

New and Changed Information

Lists specific revisions made in different manual versions.

About This Manual

Audience

Describes the intended readers and their required familiarity.

Organization

Explains the manual's structure by chapters and appendices.

Related Documentation

Notation Conventions

General Syntax Notation

Defines conventions used for command syntax presentation.

Disk and Tape Utilities Overview

Utility Descriptions

Briefly describes each utility and its associated tasks.

Using BACKCOPY, BACKUP, and RESTORE

Explains common procedures and differences between these utilities.

BACKCOPY

Security

Discusses access control and security for the BACKCOPY utility.

BACKCOPY Syntax

Describes the command structure and available options.

BACKUP

Security

Discusses access control and security for the BACKUP utility.

BACKUP and RESTORE Interaction

Explains how BACKUP options affect RESTORE operations.

BACKUP Syntax

Details the command structure for file and volume modes.

Disk Compression (DCOM)

Security

Discusses access control and security for the DCOM utility.

DCOM Syntax

Describes the command structure and available options.

Disk Space Analysis Program (DSAP)

Security

Discusses access control and security for the DSAP utility.

DSAP Syntax

Describes the command structure and available options.

DSAP Options

Lists and describes various DSAP analysis options.

PAK/UNPAK

PAK Command Options

Details the options available for the PAK command.

UNPAK Command Options

Details the options available for the UNPAK command.

RESTORE

Security

Discusses access control and security for the RESTORE utility.

RESTORE Syntax

Details command structure for file and volume modes.

RESTORE Options

Detailed explanation of individual RESTORE options.

BACKCOPY, BACKUP, and RESTORE Messages

DCOM/DSAP Messages

PAK/UNPAK Messages

Syntax Summaries

BACKCOPY Syntax

Summarizes the syntax for the BACKCOPY command.

BACKUP File-Mode Syntax

Summarizes the syntax for BACKUP in file mode.

BACKUP Volume-Mode Syntax

Summarizes the syntax for BACKUP in volume mode.

DCOM Syntax

Summarizes the syntax for the DCOM command.

DSAP Syntax

Summarizes the syntax for the DSAP command.

PAK/UNPAK Syntax

Summarizes the syntax for PAK and UNPAK commands.

RESTORE File-Mode Syntax

Summarizes the syntax for RESTORE in file mode.

RESTORE Volume-Mode Syntax

Summarizes the syntax for RESTORE in volume mode.

CLASS TAPE DEFINEs

TAPE DEFINE Attributes

Lists and describes the attributes for TAPE DEFINEs.

TAPE DEFINE Consistency Checks

Details consistency rules for TAPE DEFINE attributes.

Tape Label Formats

ANSI Standard Labels

Describes ANSI VOL1 and HDR1/EOF/EOV1 label formats.

IBM Standard Labels

Describes IBM VOL1, HDR1/EOF1/EOV1, HDR2/EOF2/EOV2 label formats.