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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
Backup and Restore GuideThe HCL OneDB™ Backup and Restore Guide describes how to use the HCL® OneDB® ON-Bar and ontape utilities to back up and restore database server data. These utilities enable you to recover your databases after data is lost or becomes corrupted due to hardware or software failure or accident.
Backup and restore configuration parameter reference
Backup and restore configuration parametersThese topics describe the configuration parameters that you use with the ON-Bar, ontape, and archecker utilities.
The archecker utility configuration parameters and environment variableThese topics describe the AC_CONFIG environment variable and the configuration parameters that you use with the archecker utility.
AC_TAPEBLOCK configuration parameterUse the AC_TAPEBLOCK configuration parameter to specify the size of the tape block in kilobytes when an archive is performed either the onbar -b command or the ontape -t command.

AC_TAPEBLOCK configuration parameter

Use the AC_TAPEBLOCK configuration parameter to specify the size of the tape block in kilobytes when an archive is performed either the onbar -b command or the ontape -t command.

Default value: 32 kilobytes
Range: 0 - 2,000,000,000

Usage

When you perform an archive with:

onbar -b, the value of AC_TAPEBLOCK should be the value the BAR_XFER_BUF_SIZE configuration parameter multiplied by the current page size. For more information, see BAR_XFER_BUF_SIZE configuration parameter.
ontape -t, the value of AC_TAPEBLOCK should be the value that the TAPEBLK ONCONFIG configuration parameter was set to at the time of the archive. For more information, see Specify the tape-block-size.