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[物理/逻辑坏块] rman优化备份性能脚本

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发表于 2013-4-6 14:32:50 | 查看: 7581| 回复: 3

CONFIGURE DEFAULT DEVICE TYPE TO SBT;
CONFIGURE DEVICE TYPE SBT PARALLELISM 40;
CONFIGURE CHANNEL DEVICE TYPE SBT MAXOPENFILES=1 PARMS='BLKSIZE=1048576, ENV=(NB_ORA_CLASS=Oracle_backup)' FORMAT '%U_%t';

sbt 备份

sql 'alter session set _db_file_direct_io_count=8388608';

sql 'alter session set "_backup_ksfq_bufsz"=4194304  ';
sql 'alter session set "_backup_ksfq_bufcnt"=64 ';

run
{

allocate channel mac1 TYPE SBT MAXOPENFILES=1 PARMS='BLKSIZE=1048576, ENV=(NB_ORA_CLASS=Oracle_backup)' FORMAT '%U_%t';
backup as compressed backupset database;
}

run
{
allocate channel mac1 TYPE disk MAXOPENFILES=1 FORMAT '%U_%t';
backup as compressed backupset database;

}

sql 'alter session set "_backup_ksfq_bufsz"=4194304 ';
sql 'alter session set "_backup_ksfq_bufcnt"=64 ';

run
{ allocate channel mac01  DEVICE TYPE DISK MAXOPENFILES=1 PARMS='BLKSIZE=1048576' ;
allocate channel mac02  DEVICE TYPE DISK MAXOPENFILES=1 PARMS='BLKSIZE=1048576' ;
allocate channel mac03  DEVICE TYPE DISK MAXOPENFILES=1 PARMS='BLKSIZE=1048576' ;
allocate channel mac04  DEVICE TYPE DISK MAXOPENFILES=1 PARMS='BLKSIZE=1048576' ;
backup as copy (datafile 1,2 format '/s01/backup/%U.bak' channel mac01)
(datafile 3,4 format '/s01/backup/%U.bak' channel mac02)
(datafile 5,6  format '/s01/backup/%U.bak'  channel mac03);
}

  run
{ allocate channel mac01  DEVICE TYPE DISK  ;
allocate channel mac02  DEVICE TYPE DISK  ;
allocate channel mac03  DEVICE TYPE DISK  ;
allocate channel mac04  DEVICE TYPE DISK  ;
backup as copy (datafile 1,2 format '/s01/backup/%U.bak' channel mac01)
(datafile 3,4 format '/s01/backup/%U.bak' channel mac02)
(datafile 5,6  format '/s01/backup/%U.bak'  channel mac03);
}

优化

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