How to solve the problem of migrating from non-archive mode to archive mode in Oracle Database

How to solve the problem of migrating from non-archive mode to archive mode in Oracle Database

I found several problems during the oracle archive test today. I will record them here for your suggestions and help.

[oracle@localhost ~]$ sqlplus / as sysdbaSQL*Plus: Release 11.2.0.1.0 Production on Fri Dec 19 17:34:42 2014Copyright (c) 1982, 2009, Oracle.  All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing options

Since I am not familiar with oracle databases, I feel strange when I execute the following commands:

SQL> alter database archivelog;alter database archivelog*ERROR at line 1:ORA-01126: database must be mounted in this instance and not open in any instance

To archive configuration, it must belong to a database instance. This problem occurs in RAC. For more information, see:

<A target = _ blank href = "http://shuimomo.blog.51cto.com/1141396/933434"> click to open the link </a>

</Pre> <pre code_snippet_id = "557252" snippet_file_name = "blog_20141220_7_6900758" name = "code" class = "SQL" style = "font-size: 18px; "> but I found that the RAC does not exist in the VM environment: I tried the first two cases. Only mount is allowed.

<table border="1" width="500" cellspacing="1" cellpadding="1"><tbody><tr><td>SQL> shutdown immediate;Database closed.Database dismounted.ORACLE instance shut down.SQL> startup mount;ORACLE instance started.Total System Global Area  417546240 bytesFixed Size                  2213936 bytesVariable Size             314574800 bytesDatabase Buffers           96468992 bytesRedo Buffers                4288512 bytesDatabase mounted.SQL> alter database archivelog;Database altered.</td></tr><tr><td>SQL> shutdown immediate;Database closed.Database dismounted.ORACLE instance shut down.SQL> startupORACLE instance started.Total System Global Area  417546240 bytesFixed Size                  2213936 bytesVariable Size             314574800 bytesDatabase Buffers           96468992 bytesRedo Buffers                4288512 bytesDatabase mounted.Database opened.SQL> alter database archivelog;alter database archivelog*ERROR at line 1:ORA-01126: database must be mounted in this instance and not open in any instanc                                          e</td></tr></tbody></table>

SQL> show parameter db_recovery_file_dest;NAME                                 TYPE------------------------------------ --------------------------------VALUE------------------------------db_recovery_file_dest                string/u01/app/oracle/flash_recovery_areadb_recovery_file_dest_size           big integer3882M

<Span style = "color: rgb (57, 57, 57); font-family: verdana, 'Ms song', Arial, Helvetica, sans-serif; font-size: 14px; line-height: 21px; background-color: rgb (250,247,239); "> the default path is DB_RECOVERY_FILE_DEST, this path is not appropriate because it is mixed with the Flash_back_recovery path of Oracle. </Span>

<Span style = "font-family: verdana, MS song, Arial, Helvetica, sans-serif; color: #393939;"> <span style = "font-size: 14px; line-height: 21px; "> so you need to modify it: </span>

SQL> alter system set log_archive_dest = '/u01/app/oracle/arch' scope = spfile;System altered.SQL> !ls -lrt  /u01/app/oracletotal 48drwxr-xr-x 2 oracle oinstall 4096 Dec 15 21:25 checkpointsdrwxr-x--- 5 oracle oinstall 4096 Dec 15 22:03 cfgtoollogsdrwxr-x--- 3 oracle oinstall 4096 Dec 15 22:04 oradatadrwxr-x--- 3 oracle oinstall 4096 Dec 15 22:04 admindrwxrwxr-x 4 oracle oinstall 4096 Dec 15 22:04 diagdrwxr-x--- 4 oracle oinstall 4096 Dec 15 22:06 flash_recovery_area

Through the above view, you will find that the database does not create an arch directory for it. When creating a log file, it is exactly the opposite. If you want to create a log file under the current directory

You must delete the file before creating it. Pay attention to this.

</pre><pre code_snippet_id="557252" snippet_file_name="blog_20141220_16_9214578" name="code" class="sql" style="font-size:18px;">SQL> !pwd/home/oracleSQL> !mkdir /u01/app/oracle/archSQL> !ls -lrt /u01/app/oracletotal 52drwxr-xr-x 2 oracle oinstall 4096 Dec 15 21:25 checkpointsdrwxr-x--- 5 oracle oinstall 4096 Dec 15 22:03 cfgtoollogsdrwxr-x--- 3 oracle oinstall 4096 Dec 15 22:04 oradatadrwxr-x--- 3 oracle oinstall 4096 Dec 15 22:04 admindrwxrwxr-x 4 oracle oinstall 4096 Dec 15 22:04 diagdrwxr-x--- 4 oracle oinstall 4096 Dec 15 22:06 flash_recovery_areadrwxr-xr-x 2 oracle oinstall 4096 Dec 19 17:41 archSQL>