HP BACKCOPY User Manual

A format 2 file is either a large format file, or a file that can contain larger partitions than a file
created on RVUs preceding G06.00 or D46.00. A format 2 file has the potential of exceeding
the 2 GB - 1 MB size limit of a format 1 file.
For more information about handling format 1 and format 2 files, see the File Utility Program (FUP)
Reference Manual.
Tape Formats
A tape used with the BACKCOPY, BACKUP, or RESTORE utilities can have one of the different
tape formats listed in Table 3. The format includes the tape format number, the type of files stored
on a tape with that particular format, the BACKUP option that can cause that type of files to be
stored on the tape, and the version of the RESTORE utility that recognizes that particular tape
format. Multiple tape formats exist because of continuing improvements in disk and tape processing.
Table 3 Tape Formats
RESTORE VersionBACKUP OptionFiles
Tape
Format
A01 to B40OLDFORMAT (no longer
supported)
DP1 files only0
A04 to B40DP1FORMATDP1 files only1
B00 or laterDP2FORMATDP2 files, or file sets with both DP2
and DP1 files
2
C00 or laterARCHIVEFORMATArchive tape format for parallel
copies, labeled tapes, SQL
objects, and DP2 files
3
Tape Format History
The history of the various tape formats and their associated attributes are summarized in Table 4,
which identifies the NonStop software version in which these attributes were introduced.
Table 4 History and Attributes of Tape Formats
Tape Format 3
4
Tape Format 2
3
Tape Format 1
2
Tape Format 0
1
Associated Attributes
C00 NonStop IIB00 NonStop IIA04 NonStop 1+A01 NonStop 1+Software version in
which tape format was
introduced
DP2DP1
5
DP1 onlyDP1Disk process
DP2
6
Up to 30 KB
7
Up to 30 KB
7
Up to 30 KB2048 bytesRecord size
YesYesYesNoChecksums and
sequence numbers per
record
C00 or laterB00 or laterA04 to B40A01 to B40Compatible RESTORE
versions
NoNoYes, only if
BLOCKSIZE=2
YesCompatible between
NonStop and
NonStop 1+
1
Carried over from NonStop 1+ (unchanged)
2
To accommodate large block size and checksums
3
To accommodate DP2 files
4
To facilitate labeled tapes, and parallel copies, and SQL objects
5
If the input files are DP1 files or the DP1FORMAT option is specified, tape format 1 is used.
Using BACKCOPY, BACKUP, and RESTORE 31

HP BACKCOPY Specifications

General

Brand	HP
Model	BACKCOPY
Category	Software
Language	English