Differential backup: Back up data based on full backup. Because the tar command cannot implement differential backup, this article explains how to use the dump and restore commands. Of course, the dump and restore commands can also implement full
DUMP File Overview
In order to enhance the fault analysis capability, the IBM server has added the ability to save the current environment for device faults, it is to save the data and status information of the memory, CPU registers, IO, and other
Oracle Common Dump command
Memory Dumps
1). Global Area
ALTER session SET The EVENTS ' immediatetrace name Global_area level n ';
1 contains PGA 2 contains SGA 4 contains UGA 8 contains indrect memory
2). Library Cache
ALTER session SET The EVENTS '
One, Oracle trace fileThere are three types of Oracle trace files, a background alarm log file that records the activity of the background process during startup, shutdown, and operation of the database, such as tablespace creation, rollback segment
As mentioned above, the dump file can save the Process status for easy analysis. Because the dump file records the specific information of a process at a certain time point, it is very important to save the dump. For exampleProgramCrash: dump should
One, Oracle trace FileOracle trace files are grouped into three categories:
One is the background alarm log file that records the activity of the background process during startup, shutdown, and running of the database , such as table space
I,OracleTracking FileThere are three types of Oracle tracking files:
One is the background alarm log file, which recordsDatabaseActivities of background processes during startup, shutdown, and running, such as creating tablespaces, creating
1. Enable core dump
In Linux, core dump files are not generated by default.
$ Ulimit-C
Check the coredump file size. Generally, the starting value is 0, indicating that the kernel dump is invalid.
$ Ulimit-C unlimited // do not limit the size of the
Procdump is a lightweight command line tool developed by the sysinternal team to monitor applications.ProgramAnd generate a crash dump file for developers and administrators to determine the cause of the problem. you can also use it as a dump
about how to set up kernel dumps1. Kernel dump function(1) The greatest benefit of a kernel dump is the ability to save the state when the problem occurs.(2) As long as the executable file and the kernel dump, you can know the status of the process.(
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