how to check archive log destination size in oracle

Today, I will talk about my understanding of these two operation modes and give some feasible suggestions to improve the security of Oracle databases. I. Advantages and Disadvantages of non-archive mode. The non-archive mode is a log operation mode that does not retain the redo history. It can only be used to protect

administrator recover data to the greatest extent possible. Similarly, when an enterprise allows partial damage to data, it can adopt non-archive mode to save additional overhead and disk space for log file backup when switching the log group. Furthermore, check whether the database needs to run around the clock. In n

Check items before deleting oracle archive logs, oracle Archive This article is an original article, Reprinted please indicate the source Http://blog.csdn.net/msdnchina/article/details/41413313 To delete archived logs, you must confirm the following in advance:1. Whether

take a non-archive mode to conserve the extra overhead and disk space for log file backups when switching log groups. Again, check to see if the database needs to be run 24x7. Because in non-archive mode, you must close the database with commands such as shutdownnormal bef

--Connection Recovery Manager C:\Documents and Settings\mengzhaoliang>rman target/ --Archive Log list rman> list Archivelog all; --Delete archive logs that do not exist for physical files rman> Delete expired Archivelog all; --Delete the archive log 7 days ago Rman> DELE

Oracle 11g archive log study _ 1, oracle11g ARCHIVE _ 1 Oracle Database Operations are recorded in the redo log for undo (rollback) Or redo (redo) in case of database exceptions ). Redo logs are divided into online logs and

Oracle 11g archive log study _ 4, oracle11g ARCHIVE _ 4 The change content is the core of converting oracle logs into SQL statements, and is also the most troublesome and most changing place. The meaning of opcode is that there are a lot of searches on the Internet. What is

checkpoint is generated, the online redo log file can be reused online log is overwritten, media recovery only support to the most recent full backup does not support online backup table space, A tablespace corruption will cause the entire database to be unavailable, the need to remove the corrupted tablespace or restore from backup to the operating system-level database backup requires database consistenc

, enter help;Enter Exit to exit.Sql> RMAN;sp2-0042: Unknown Command "RMAN"-the remaining rows are ignored.Sql> select * from V$flash_recovery_area_usage; File_type percent_space_used percent_space_reclaimable Number_of_files------------ ------------------ ------------------------- ---------------Controlfile 0 0 0Onlinelog 0 0 0ARCHIVELOG. 33 0 3Backuppiece 0 0 0Imagecopy 0 0 0Flashbacklog 0 0 0 6 rows have been selected. Sql> Delete the useless archivelog. Enter Rman, commands

We all know that the controlfile records information about each archivelog. Of course, after deleting these physical files in the OS The archivelog information is still recorded in the controlfile. the logs are displayed visually in the Oracle OEM manager. After we manually clear the files in the archive directory, these records are not cleared from controlfile, that is,

Tags: Oracle RAC Archive1. Modify the archive Path parameterSqlplus/as SYSDBASql> alter system set log_archive_dest_1= ' Location=+asmarch ' scope=spfile sid= ' * ';2. Close the database and all nodes are closedSrvctl Stop database-d racdb3. Boot a node database to mount State 5 and modify the database's archive mode and start the databaseSrvctl start instance-d

Oracle 11g archive log study _ 2, oracle11g ARCHIVE _ 2 Starting from Block 1, the block stores all oracle Operation Records. The block structure is very simple. There are only blocks and blocks:Typedef struct bk {Redo_bh blockhead; uint8_t buf [496];} Redo_bk; Redo_bk T

/full_AVATAR2_20041206_173 recid = 173 stamp = 544156241 ..... deleted archive logarchive log filename =/opt/oracle/oradata/avatar2/archive/export 2715.dbf recid = 2703 stamp = 545108268 deleted archive logarchive log filename =/o

By default, when we create a database in dbca, the archive will be placed under $ ORACLE_HOMEflash_recovery_area, And the size configured by oracle for FRA is 2 GB by default. If db_re By default, when we create a database in dbca, the archive will be placed under $ ORACLE_HOME/flash_recovery_area, And the

The Oracle OEM manager displays visualized logs. After we manually clear the files in the archive directory, these records are not cleared from the controlfile, that is, oracle does not know that these files no longer exist! In this case, if we want to manually clear it, we can try this method after experiment: 1. Enter rman2. connect target/3. crosscheck archive

Most people will first check whether the disk space in the archive directory is full and determine whether the archive space is full based on the free space of the archive directory, however, I think this method does not necessarily represent the actual situation. What you see may be a superficial phenomenon. By defaul

[1] 1. select name, log_mode from v $ database; NAME LOG_MODE ------------------ ------------------------ query noarchivelog 2. use the archive log list Command Database log mode No Archive Mode Automatic archival Disabled Archive destination/data/