Dynamic Reconfiguration User's Guide 2.5.1
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Chapter 2 DR Environment and Administration> 2.1 DR System Components> 2.1.3 Memory> 2.1.3.4 Swap Space Consideration

2.1.3.4.1 DR attach

The swap space is used to save crash dumps as well. The crash dump size varies according to the installed physical memory size and the application programs. For the sake of saving crash dumps, the system administrator should keep the dump device size large enough to cover the total physical memory after the memory size is expanded by DR attach. Refer to man page of "dumpadm(1M)" to configure dump device.

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