Scratchvol; Guidelines; Shareopen - HP BACKCOPY Reference Manual

and automatically limited remote I/O size cannot be identified. If the REMOTEIOSIZE exceeds
current hardware or software limitations, RESTORE returns this error:
TABLENAME
You must repeat the operation using a smaller REMOTEIOSIZE.
The default ENSCRIBE I/O transfer size is equal to BLOCKSIZE, but you can use REMOTEIOSIZE
to reduce it if you need to because of Expand limitations.

SCRATCHVOL

The SCRATCHVOL option specifies a disk volume where BACKUP is to create the temporary files
used in the DP1-to-DP2 conversion process. Use this option when converting nonpartitioned files
or individual partitions of partitioned files.
SCRATCHVOL $volume
$volume
is the name of a disk volume.

Guidelines

If you omit this option, BACKUP creates temporary files (with prefix ZZCV) on the current
default volume and subvolume.
Use this option if disk space is inadequate during a file conversion (if BACKUP returns error
43).
You cannot use wild-card characters with this option.

SHAREOPEN

The SHAREOPEN option causes files to be backed up with shared-read access instead of
protected-read access. This gives other processes read/write access to the backup files during
BACKUP procedures.
SHAREOPEN
CAUTION:
(file is bad) can occur, and data can be lost. File inconsistencies are not detected during BACKUP
or RESTORE but might be discovered when the file is subsequently accessed.
NOTE: Backup always opens the ZTMFAT subvolume with SHAREOPEN option, irrespective of
whether SHAREOPEN has been specified or not.
Guidelines
Because use of the SHAREOPEN option presents some risk to data integrity, this message
appears when the option is used:
*WARNING-7139* The backup files may be opened for writebecause the SHAREOPEN option was used for Backup.
This may
result in inconsistent file data on the backup tape.
This warning message also appears before a BACKCOPY or RESTORE that uses a BACKUP
tape made by using the SHAREOPEN option.
You cannot use OPEN and SHAREOPEN in the same BACKUP command.
Backup always opens TMF audit trail files with SHAREOPEN access irrespective of whether
SHAREOPEN access has been specified or not.
*ERROR* Guardian error: 21 (BulkWrite)
If you restore a file that was modified while being backed up, file-system error 59
BACKUP Options 67