7. Collecting Failure InformationExpress5800/R320e-E4, R320e-M4, R320f-E4, R320f-M4 Maintenance Guide (VMware)62Chapter 1 Maintenance7.3 Collecting Memory DumpIf an error occurs, the dump file should be saved to acquire necessary information.The dumps for the ESXi host are saved to the following files under /var/core.- vmkernel-zdump-MMDDYY.HH:mm.n- vmkernel-dumpinfo-MMDDYY.HH.mm.txt- vmkernel-ring-MMDDYY.HH.mm* MMDDYY denotes the created date, and HH:mm.n denotes the created time.* It may take certain time to create dump data file.* Names of the dump files may differ from the ones as above depending on the server state at which dump datawere collected (for example, 'vmkernel-zdump.1').Consult with your sales representative before dumping the memory. Dumping the memory while the server is inoperating normally may affect the system operation.Important A message indicating insufficient virtual memory may appear whenrestarting the system due to an error. Ignore this message and proceed.Restarting the system may result in an inability to properly dump thedata. If a physical processor of CPU #0 is allowed to be used for the virtualmachine, memory dump may not be collected even when pressing theDUMP switch. To operate the machine assuming to collect memorydump, set the value other than "0" for the property of "SchedulingAffinity” of the virtual machine.Use the DUMP (NMI) switch to collect the memory dump in case of a failure.The procedure for use of the DUMP (NMI) switch is described below.Important If you perform these steps, the system is made offline automatically, and isrebooted. Note that the system is not ready for use for that period.
