ASM-本地数据拷贝

从ASM中拷贝归档日志到文件系统:

命令：

 rman target /

RMAN> copy archivelog '+ARCH/fhdbca/archivelog/2018_05_09/thread_1_seq_37.384.975668203' to '/oracle/thread_1_seq_37.384.975668203';

从文件系统中拷贝归档日志到ASM:

命令：

RMAN> catalog archivelog '/oracle/thread_1_seq_37.384.975668203';

RMAN> copy archivelog '/oracle/thread_1_seq_37.384.975668203' to '+ARCH/fhdbca/archivelog/2018_05_09/thread_1_seq_37.384.975668203';

RMAN> catalog archivelog '+ARCH/fhdbca/archivelog/2018_05_09/thread_1_seq_37.384.975668203';

ASMCMD中的cp命令(11g)

cp命令是11g新增的命令，使用它可以轻松的把文件从ASM中复制到文件系统中或者反过来。还可以把ASM中的文件复制到网络上的其他服务器的文件系统中。

#从ASM复制到文件系统
[grid@rac1 ~]$ asmcmd -p   --显示路径
ASMCMD [+] > cd data
ASMCMD [+data] > cd orcl
ASMCMD [+data/orcl] > cd datafile
ASMCMD [+data/orcl/datafile] > ls
SYSAUX.257.925306091
SYSTEM.256.925306089
UNDOTBS1.258.925306091
UNDOTBS2.264.925306377
USERS.259.925306091
ASMCMD [+data/orcl/datafile] > ls -l
Type      Redund  Striped  Time             Sys  Name
DATAFILE  UNPROT  COARSE   MAY 21 11:00:00  Y    SYSAUX.257.925306091
DATAFILE  UNPROT  COARSE   MAY 21 11:00:00  Y    SYSTEM.256.925306089
DATAFILE  UNPROT  COARSE   MAY 21 11:00:00  Y    UNDOTBS1.258.925306091
DATAFILE  UNPROT  COARSE   MAY 21 11:00:00  Y    UNDOTBS2.264.925306377
DATAFILE  UNPROT  COARSE   MAY 21 11:00:00  Y    USERS.259.925306091
ASMCMD [+data/orcl/datafile] > cp USERS.259.925306091 /home/grid/users.dbf
copying +data/orcl/datafile/USERS.259.925306091 -> /home/grid/users.dbf
ASMCMD [+data/orcl/datafile] >
#查看复制结果
[grid@rac1 ~]$ ll /home/grid/users.dbf 
-rw-r-----. 1 grid oinstall 5251072 May 21 15:20 /home/grid/users.dbf
  
#从文件系统复制到ASM
ASMCMD [+data/orcl/datafile] > cp /home/grid/users.dbf +data/orcl
copying /home/grid/users.dbf -> +data/orcl/users.dbf
#查看复制结果
ASMCMD [+data/orcl/datafile] > cd +data/orcl
ASMCMD [+data/orcl] > ls -l
Type           Redund  Striped  Time             Sys  Name
                                                 Y    ARCHIVELOG/
                                                 Y    CONTROLFILE/
                                                 Y    DATAFILE/
                                                 Y    ONLINELOG/
                                                 Y    PARAMETERFILE/
                                                 Y    TEMPFILE/
                                                 N    spfileorcl.ora => +DATA/ORCL/PARAMETERFILE/spfile.268.925423909
                                                 N    users.dbf => +DATA/ASM/DATAFILE/users.dbf.271.944580085
cp的详细使用情况可以使用help cp命令获得。