總結
1、pfile選項說明使用的rman命令執行的那端的一個檔案
如果rman在源端開啟，則pfile放在源端上，如果ramn在目標端開啟，則pfile放在目標端上
2、logfile表示在duplicate命令中生成目標端的檔案，和rman命令在哪端執行無關
logfile的生成的檔案在目標端，logfile選項時必須指定size
3、一般操作時，除非自己清楚源端和目標端的datafile、online redo log檔案不在同一個共享的目錄中，否則不要加上nofilenamecheck
4、如果pfile或spifle中指定了*_file_name_convert引數，但是duplicate命令中重新指定了db_file_name_convert、logfile選擇，則會覆蓋掉pfile或spifle中指定了*_file_name_convert引數的設定，見如下logfile、*_file_name_convert、nofilenamecheck選項中5、6的實驗

pfile選項
前提條件
源端端目標端在不同機器，不共享/u01/app/oracle/oradata/prod1路徑，各自都有自己的/u01/app/oracle/oradata/prod1目錄
源端的logfile位於路徑/u01/app/oracle/oradata/prod1，目標端的pfile或spfile沒有指定任何db_file_name_convert和log_file_name_convert引數

源端檔案/home/oracle/initprod1std.ora(SGA=800M,process=200)
目標端pfile檔案/home/oracle/initprod1std.ora(SGA=700M,process=190)
目標端pfile檔案$ORACLE_HOME/dbs/initprod1std.ora(SGA=600M,process=180)
目標端spfile檔案$ORACLE_HOME/dbs/spfileprod1std.ora(SGA=600M,process=180)

1、rman在源端伺服器上執行，目標端沒有/home/oracle/initprod1std.ora，目標端沒有spfile，目標端使用$ORACLE_HOME/dbs/initprod1std.ora
run {
duplicate target database to prod1std from active database
pfile=/home/oracle/initprod1std.ora
LOGFILE
'/u02/log01.dbf' size 1024M,
'/u02/log02.dbf' size 1024M,
'/u02/log03.dbf' size 1024M
NOFILENAMECHECK;
}
目標端的結果
SGA=800M
process=200
db_data_files.file_name和源端一樣
v$logfile.member路徑為/u02
說明使用了源端的檔案/home/oracle/initprod1std.ora，並且在目標端生成了rman命令中的logfile

2、rman在源端伺服器上執行，目標端沒有/home/oracle/initprod1std.ora，目標端有$ORACLE_HOME/dbs/initprod1std.ora，目標端使用spfile啟動$ORACLE_HOME/dbs/spfileprod1std.ora
run {
duplicate target database to prod1std from active database
pfile=/home/oracle/initprod1std.ora
LOGFILE
'/u02/log01.dbf' size 1024M,
'/u02/log02.dbf' size 1024M,
'/u02/log03.dbf' size 1024M
NOFILENAMECHECK;
}
報錯RMAN-05597: Database started with server parameter file and PFILE clause used in command

3、rman在源端伺服器上執行，源端伺服器上沒有/home/oracle/initprod1std.ora，目標端沒有/home/oracle/initprod1std.ora，目標端沒有spfile，目標端使用$ORACLE_HOME/dbs/initprod1std.ora
run {
duplicate target database to prod1std from active database
pfile=/home/oracle/initprod1std.ora
LOGFILE
'/u02/log01.dbf' size 1024M,
'/u02/log02.dbf' size 1024M,
'/u02/log03.dbf' size 1024M
NOFILENAMECHECK;
}
報錯RMAN-04017: startup error description: LRM-00109: could not open parameter file '/home/oracle/initprod1std.ora'

4、rman在源端伺服器上執行，源端伺服器上沒有/home/oracle/initprod1std.ora，目標端有/home/oracle/initprod1std.ora，目標端沒有spfile，目標端使用$ORACLE_HOME/dbs/initprod1std.ora
run {
duplicate target database to prod1std from active database
pfile=/home/oracle/initprod1std.ora
LOGFILE
'/u02/log01.dbf' size 1024M,
'/u02/log02.dbf' size 1024M,
'/u02/log03.dbf' size 1024M
NOFILENAMECHECK;
}
報錯RMAN-04017: startup error description: LRM-00109: could not open parameter file '/home/oracle/initprod1std.ora'

3、4說明使用的是源端的檔案/home/oracle/initprod1std.ora

logfile、*_file_name_convert、nofilenamecheck選項
源端端目標端在不同機器，不共享/u01/app/oracle/oradata/prod1路徑，各自都有自己的/u01/app/oracle/oradata/prod1目錄

1、源端的logfile位於路徑/u01/app/oracle/oradata/prod1，目標端的使用spfile啟動，spfile沒有指定任何db_file_name_convert、log_file_name_convert引數
run {duplicate target database to prod1std from active database;}
報錯
RMAN-05501: aborting duplication of target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/example01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/users01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/undotbs01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/sysaux01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/system01.dbf conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/redo03.log conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/redo02.log conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/redo01.log conflicts with a file used by the target database

2、源端的logfile位於路徑/u01/app/oracle/oradata/prod1，目標端的使用spfile啟動，spfile沒有指定任何db_file_name_convert、log_file_name_convert引數
run {duplicate target database to prod1std from active database nofilenamecheck;}
目標端的結果
db_data_files.file_name和源端一樣
v$logfile.member和源端一樣

3、源端的logfile位於路徑/u01/app/oracle/oradata/prod1，目標端的使用spfile啟動，spfile沒有指定任何db_file_name_convert、log_file_name_convert引數
run {duplicate target database to prod1std from active database db_file_name_convert=('/u01/app/oracle/oradata/prod1','/u01/app/oracle/oradata/prod1std');}
報錯
RMAN-05501: aborting duplication of target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/redo03.log conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/redo02.log conflicts with a file used by the target database
RMAN-05001: auxiliary file name /u01/app/oracle/oradata/prod1/redo01.log conflicts with a file used by the target database

4、源端的logfile位於路徑/u01/app/oracle/oradata/prod1，目標端的使用spfile啟動，spfile沒有指定任何db_file_name_convert、log_file_name_convert引數
run {duplicate target database to prod1std from active database
db_file_name_convert=('/u01/app/oracle/oradata/prod1','/u01/app/oracle/oradata/prod1std')
logfile
'/u01/app/oracle/oradata/prod1std/redo01.log' size 50M,
'/u01/app/oracle/oradata/prod1std/redo02.log' size 50M,
'/u01/app/oracle/oradata/prod1std/redo03.log' size 50M;
}
目標端結果
db_data_files.file_name在/u01/app/oracle/oradata/prod1std目錄下
v$logfile.member在/u01/app/oracle/oradata/prod1std路徑下

5、源端的dbfile,logfile都位於路徑/u01/app/oracle/oradata/prod1，目標端的使用spfile啟動，spfile指定
db_file_name_convert='/u01/app/oracle/oradata/prod1/', '/u01/app/oracle/oradata/prod1std/'
log_file_name_convert='/u01/app/oracle/oradata/prod1/', '/u01/app/oracle/oradata/prod1std/'
run {duplicate target database to prod1std from active database;
}
目標端結果
db_data_files.file_name在/u01/app/oracle/oradata/prod1std目錄下
v$logfile.member在/u01/app/oracle/oradata/prod1std路徑下

6、源端的dbfile,logfile都位於路徑/u01/app/oracle/oradata/prod1，目標端的使用spfile啟動，spfile指定
db_file_name_convert='/u01/app/oracle/oradata/prod1/', '/u01/app/oracle/oradata/prod1std/'
log_file_name_convert='/u01/app/oracle/oradata/prod1/', '/u01/app/oracle/oradata/prod1std/'
run {duplicate target database to prod1std from active database
db_file_name_convert=('/u01/app/oracle/oradata/prod1','/u01/app/oracle/oradata/data2')
logfile
'/u01/app/oracle/oradata/data2/redo01.log' size 50M,
'/u01/app/oracle/oradata/data2/redo02.log' size 50M,
'/u01/app/oracle/oradata/data2/redo03.log' size 50M;
}
目標端結果
db_data_files.file_name在/u01/app/oracle/oradata/data2目錄下
v$logfile.member在/u01/app/oracle/oradata/data2路徑下

logfile選項時不加size時報錯
run {duplicate target database to prod1std from active database
db_file_name_convert=('/u01/app/oracle/oradata/prod1','/u01/app/oracle/oradata/prod1std')
logfile
'/u01/app/oracle/oradata/prod1std/redo01.log',
'/u01/app/oracle/oradata/prod1std/redo02.log',
'/u01/app/oracle/oradata/prod1std/redo03.log';}
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00558: error encountered while parsing input commands
RMAN-01009: syntax error: found "comma": expecting one of: "size"
RMAN-01007: at line 1 column 208 file: standard input

duplicate命令中有pfile、logfile、*_file_name_convert、nofilenamecheck的案例

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