HP Archive Backup System for OpenVMS Guide to Operations

System Backup to Tape for Oracle Databases
9.12 Support for Oracle RDB database
RMU command excluding any specified VMS file extension. This parameter can only be specified
for database restores. The default is 1 reader thread. A reader thread value of 1 is used for all
other RMU commands that read data using SBT.
The number of READER_THREADS for a database restore from SBT should be equal to or less
than the number of WRITER_THREADS specified for the database backup or the number of
reader threads will be set by RMU to be equal to the number of data streams actually stored
using SBT. If the READER_THREADS specified for the restore are less than the
WRITER_THREADS specified for the backup RMU will partition the data streams among the
specified reader threads so that all data streams representing the database are restored. Therefore,
each reader thread can read more than one data stream.
TRACE_FILE=file_pecification
The trace data will be written to this file, if specified. The logical
MDMS$SBT_TRACE_LEVEL allows you to define how much tracing of SBT you want to
appear in your trace file. The logical is defined in SYS$STARTUP:MDMS$SYSTARTUP.COM.
You can check using the following command:
$ SEARCH SYS$STARTUP:MDMS$SYSTARTUP.COM MDMS$SBT_TRACE_LEVEL
%SEARCH-I-NOMATCHES, no strings matched
If the search command did not find it, you need to edit SYS$STARTUP:MDMS$SYSTAR-
TUP.TEMPLATE and pull the following code out of it and put the code in SYS$STAR-
TUP:MDMS$SYSTARTUP.COM.
$ !
$ !
$ ! The MDMS$SBT_TRACE_LEVEL log name controls what is written to the
$ ! Oracle trace file for SBT. The trace level can be controlled by
$ ! this logical separately from the trace level in the Oracle parameters.
$ !
$ TR_ERROR = %X00000000 ! Always trace errors, cannot be changed
$ TR_SBTENTRY = %X00000001 ! Entry and exit of oracle called SBT functions
$ TR_SBTPARAM = %X00000002 ! Trace oracle called SBT functions parameters
$ TR_SBTRWENTRY = %X00000004 ! Trace of SBTREAD/SBTWRITE entry
$ TR_SBTRWPARAM = %X00000008 ! Trace of parameters for SBTREAD/SBTWRITE
$ TR_GENINFO = %X00000010 ! Trace general information like backup file name
$ TR_MEDINFO = %X00000020 ! Trace media movement information
$ TR_TAPSTAT = %X00000040 ! Trace tape/disk transfer stats
$ TR_COMENTRY = %X00000080 ! Entry and exit for common functions
$ TR_COMPARAM = %X00000100 ! Trace parameters for common functions
$ TR_MEDENTRY = %X00000200 ! Entry and exit for media functions
$ TR_MEDPARAM = %X00000400 ! Trace parameters for media functions
$ TR_CATENTRY = %X00000800 ! Entry and exit for catalog functions
$ TR_CATPARAM = %X00001000 ! Trace parameters for catalog functions
$ TR_TAPENTRY = %X00002000 ! Entry and exit for VMSTAPE functions
$ TR_TAPPARAM = %X00004000 ! Trace parameters for VMSTAPE functions
$ TR_VOLENTRY = %X00008000 ! Entry and exit for VOLSET functions
$ TR_VOLPARAM = %x00010000 ! Trace parameters for VOLSET functions
$ tracefilter = TR_GENINFO .OR. TR_MEDINFO
$ DEFINE/SYSTEM/NOLOG MDMS$SBT_TRACE_LEVEL 'tracefilter'
$!
After editing SYS$STARTUP:MDMS$SYSTARTUP.COM, be sure to execute it so the logical
is defined.
System Backup to Tape for Oracle Databases 9–29