connect target /

crosscheck archivelog all;

run{
allocate channel c1 type disk  maxpiecesize=2000M;
allocate channel c2 type disk  maxpiecesize=2000M;
allocate channel c3 type disk maxpiecesize=2000M;
Backup format 'g:\rmanbak\%d_%s_%p_%c_%t_arc'  ArchiveLog all ; 
release channel c1;
release channel c2;
release channel c3;
}

执行中第一次出现的错误：

恢复管理器：版本8.1.7.0.0 - Production

RMAN>connect target /
2> crosscheck archivelog
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00558: error encountered while parsing input commands
RMAN-01005: syntax error: found "archivelog": expecting one of: "backup，backupset"
RMAN-01007: at line 2 column 12 file: ic_backup_arc.rcv

错误原因：

crosscheck archivelog all; 语句为验证归档日志，但是此语句适合在9i以上环境中使用，在8i中此语句为：change archivelog all crosscheck;

修改了此crosscheck语句后，再执行以上rman，又提示错误：

 RMAN-01008: the bad identifier was: maxpiecesize

错误原因：

使用了maxpiecesize=2000M，此种用法也是在9i中使用，在8i中使用方法如下：

allocate channel c1 type disk;

set limit channel c1 kbytes 2048000;