log_archive_dest_n和standby_archive_dest - 数据库编程

log_archive_dest_9 string log_archive_dest_state_1 string enable log_archive_dest_state_10 string enable log_archive_dest_state_2 string enable log_archive_dest_state_3 string enable log_archive_dest_state_4 string enable log_archive_dest_state_5 string enable log_archive_dest_state_6 string enable NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ log_archive_dest_state_7 string enable log_archive_dest_state_8 string enable log_archive_dest_state_9 string enable log_archive_duplex_dest string log_archive_format string %t_%s_%r.dbf log_archive_local_first boolean TRUE log_archive_max_processes integer 2 log_archive_min_succeed_dest integer 1 log_archive_start boolean FALSE log_archive_trace integer 0 remote_archive_enable string true NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ standby_archive_dest string ?/dbs/arch 在node1下执行如下命令：alter system archive log current;

SQL> alter system archive log current;

System altered.

SQL>

在节点2下，查看

[oracle@node2 ~]$ cd 22
[oracle@node2 22]$ ll
total 852
-rw-r----- 1 oracle oinstall 854528 Jul  7 15:09 1_70_790532232.dbf
-rw-r----- 1 oracle oinstall   8704 Jul  7 15:11 1_71_790532232.dbf
[oracle@node2 22]$ cd ..
[oracle@node2 ~]$ cd 21
[oracle@node2 21]$ ll
total 836
-rw-r----- 1 oracle oinstall 846848 Jul  7 15:09 2_52_790532232.dbf
-rw-r----- 1 oracle oinstall   3072 Jul  7 15:11 2_53_790532232.dbf
[oracle@node2 21]$ cd $ORACLE_HOME/dbs
[oracle@node2 dbs]$ ll
total 44
-rw-rw---- 1 oracle oinstall  1552 Jul  7 15:07 hc_racdb2.dat
-rw-r----- 1 oracle oinstall 12920 May  3  2001 initdw.ora
-rw-r----- 1 oracle oinstall  8385 Sep 11  1998 init.ora
-rw-r----- 1 oracle oinstall    24 Aug  5  2012 initracdb2.ora
-rw-r----- 1 oracle oinstall  1536 Aug  5  2012 orapwracdb2
-rw-r----- 1 oracle oinstall  1536 Jul  7 15:07 spfileracdb2.ora

在节点2上设置standby_archvie_dest

SQL> alter system set standby_archive_dest='/home/oracle/33' sid='racdb2';

System altered.

在节点1，归档

SQL> alter system archive log current;

System altered.

查看节点2

[oracle@node2 ~]$ cd 33
[oracle@node2 33]$ ll
total 4
-rw-r----- 1 oracle oinstall 2048 Jul  7 15:14 1_72_790532232.dbf
[oracle@node2 33]$ cd ../22
[oracle@node2 22]$ ll
total 852
-rw-r----- 1 oracle oinstall 854528 Jul  7 15:09 1_70_790532232.dbf
-rw-r----- 1 oracle oinstall   8704 Jul  7 15:11 1_71_790532232.dbf
[oracle@node2 22]$

结论：

在没有设置standby_archvie_Dest的情况下，数据库会将归档放置在standby数据库的log_Archive_dest_n指定的目录下，如果指定了STANDBY_ARCHIVE_DEST则存放在standby_archive_Dest指定的目录下。

log_archive_dest_n和standby_archive_dest(二)