IBM User Guide for Java V7 on Windows > Troubleshooting and support > Using diagnostic tools > Using dump agents > Dump agents

System dumps

System dumps involve dumping the address space and as such are generally very large.

The bigger the footprint of an application the bigger its dump. A dump of a major server-based application might take up many gigabytes of file space and take several minutes to complete. In this example, the file name is overridden from the default.

 java -Xdump:system:events=vmstop,file=my.dmp

 		::::::::: removed usage info :::::::::  

	JVMDUMP006I Processing Dump Event "vmstop", detail "#00000000" - Please Wait.
	JVMDUMP007I JVM Requesting System Dump using '/home/user/my.dmp'
	JVMDUMP010I System Dump written to /home/user/my.dmp
	JVMDUMP013I Processed Dump Event "vmstop", detail "#00000000". 

See Using system dumps and the dump viewer for more information about analyzing a system dump.

Parent: Dump agents

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