An archivelog is a backup of the transaction log of a database. This can be used to restore the database to a previous state if it is corrupted or accidentally deleted.
There are several ways to create a backup of an archivelog. The most basic way is to use the RMAN utility. This can be done by issuing the following command:
RMAN> BACKUP ARCHIVELOG ALL
This will create a backup of all the archivelogs in the database.
Another way to create a backup of an archivelog is to use the EXP utility. This can be done by issuing the following command:
EXP> BACKUP ARCHIVELOG FROM TIME ‘SYSDATE-7’
This will create a backup of all the archivelogs that were created in the past seven days.
Finally, you can also create a backup of an archivelog by copying it to another location. This can be done by issuing the following command:
cp /u01/oradata/archivelog/archivelog_1.dbf /u02/oradata/archivelog/archivelog_2.dbf
This will copy the archivelog_1.dbf file to the /u02/oradata/archivelog/ directory.
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How do I check my Archivelog backup?
Oracle Database provides a number of utilities to help you manage your database backups. One of these utilities is called “archivelog list”, which is used to view the contents of an archived log.
To use the “archivelog list” utility, you must first connect to your database as the SYSDBA user. Once you are connected, you can run the following command:
archivelog list
This will return a list of all archived logs that are currently stored on your database server.
You can also use the “archivelog list” utility to view the contents of a specific archived log. To do this, you must specify the name of the archived log file. For example, the following command will return the contents of the “archivelog.log” file:
archivelog list archivelog.log
If you want to view the contents of an archived log that is not currently stored on your database server, you can use the “archivelog extract” utility. This utility will allow you to extract the contents of an archived log from a backup file.
The “archivelog extract” utility can be used in two different ways:
1. You can use the “archivelog extract” utility to extract the contents of a specific archived log. To do this, you must specify the name of the archived log file. For example, the following command will extract the contents of the “archivelog.log” file:
archivelog extract archivelog.log
2. You can use the “archivelog extract” utility to extract the contents of all archived logs. To do this, you must specify the name of the backup file. For example, the following command will extract the contents of the “archivelog.bkp” file:
archivelog extract archivelog.bkp
How do I list all backups in RMAN?
There are a few ways to list all backups in RMAN.
The first way is to use the LIST command.
The LIST command will show you all backups that are stored in your target database.
The second way is to use the SHOW BACKUP command.
The SHOW BACKUP command will show you all backups that are stored in your target database and in your backup files.
The third way is to use the DESCRIBE command.
The DESCRIBE command will show you all backups that are stored in your target database and in your backup files, as well as the size of each backup and the date of the backup.
How do I list obsolete backup in RMAN?
There may come a time when you need to know what backups are no longer needed. Perhaps you’re trying to free up space on your backup media, or you’re getting ready to do a full backup and want to remove any older backups from the set. Whatever the reason, knowing how to list obsolete backups in RMAN is a handy skill to have.
The RMAN LIST command can be used to view the contents of any backup set. To list obsolete backups, you can use the following command:
LIST BACKUP OF TAG ‘MyTag’ OBJECTTYPE=’BACKUP’ DATED BEFORE ‘YYYY-MM-DD’
This will show you all backups that are dated before the specified date, regardless of their object type. If you only want to see backups of a certain type, you can use the following command:
LIST BACKUP OF TAG ‘MyTag’ OBJECTTYPE=’BACKUP DATAFILE’
This will show you all backups of datafiles that are dated before the specified date.
How can I check RMAN catalog backup status?
Oracle provides a utility called RMAN to manage backups and restores. The RMAN utility can be used to backup both the datafiles and the control files. The RMAN utility can also be used to create a catalog of all the backups that have been created. This catalog can be used to verify the status of a backup or to restore a backup.
The RMAN utility can be used to check the status of a backup by querying the catalog. The RMAN utility can be used to query the status of a backup by specifying the backup identifier or the backup filename. The RMAN utility can also be used to query the status of a backup by specifying the date of the backup.
The following is an example of how to query the status of a backup by specifying the backup identifier:
RMAN> query status backup of database;
The following is an example of how to query the status of a backup by specifying the date of the backup:
RMAN> query status backup of database;
using target database control file instead of recovery catalog
RMAN> query status backup of database;
The following is an example of how to query the status of a backup by specifying the filename:
RMAN> query status backup of database;
The following is an example of how to query the status of a backup by specifying the date of the backup:
RMAN> query status backup of database;
How do I find my archive log list?
There are a few ways to find your archive log list. One way is to go to your control panel and select the Logs section. Once you are in the Logs section, you will see a list of all the logs that are currently being generated for your account. Underneath the list of logs, you will see a section labeled Archive Logs. This section will list all of the archived logs that are currently being stored for your account.
If you don’t see the Archive Logs section, it means that your account is not currently archiving any logs. To archive your logs, you can go to the Logs section of your control panel and select the Archive Logs tab. This tab will provide you with options for archiving your logs.
Another way to find your archive logs is to go to your cPanel account and select the Raw Access Logs icon. This icon is located in the Logs section of your cPanel account. Once you have selected the Raw Access Logs icon, you will see a list of all the logs that are currently being generated for your account. Underneath the list of logs, you will see a section labeled Archive Logs. This section will list all of the archived logs that are currently being stored for your account.
If you don’t see the Archive Logs section, it means that your account is not currently archiving any logs. To archive your logs, you can go to the Raw Access Logs section of your cPanel account and select the Archive Logs tab. This tab will provide you with options for archiving your logs.
How do I run archive log backup in RMAN?
An archive log backup is a copy of the online redo logs that have been generated since the last archivelog backup. This type of backup is important because it allows you to restore the database to a specific point in time.
There are two ways to run an archive log backup in RMAN: automated and manual.
In automated mode, RMAN will automatically back up the online redo logs as they are generated. This mode is typically used when the database is in a consistent state.
In manual mode, you must specify the online redo logs to back up. This mode is typically used when the database is not in a consistent state.
To run an archive log backup in automated mode, use the following command:
BACKUP ARCHIVELOG ALL;
To run an archive log backup in manual mode, use the following command:
BACKUP ARCHIVELOG ;
Where are RMAN backups stored?
Oracle’s Recovery Manager (RMAN) is a powerful tool used for backing up and restoring Oracle databases. But where are RMAN backups stored? This article provides an overview of where RMAN backups are typically kept, and offers some tips on how to best manage your backup files.
RMAN backups are typically stored in a dedicated backup location, separate from the primary database. This backup location can be on a different server, or even on a different network. The exact location will vary depending on your specific setup, but it’s important to ensure that the backup files are accessible and secure.
One thing to keep in mind is that RMAN backups can be quite large, and can take up a lot of space. Make sure you have enough room in your backup location to store all of your files. You may also want to consider archiving older backups to free up space.
To manage your RMAN backups, you can use the Oracle RMAN command line interface or a third-party tool. The RMAN command line interface is a bit daunting for beginners, but it offers more flexibility and control over your backups. If you’re not comfortable using the command line, you can try using a third-party tool like Backup Exec or NetBackup. These tools provide an easy-to-use graphical interface and can automate many of the backup tasks.
No matter which tools you use, it’s important to develop a regular backup schedule and to test your backups regularly. Having a reliable backup plan is critical for protecting your data.
