VMworld 2017: Advanced ESXi troubleshooting

Session: SER2965BU

Note: This session had a number of log examples and what to look for. Review the session slides for all the details. EXCELLENT session!

Goal: 7 log files, 7 ESXi commands, 7 config files for enhanced troubleshooting

7 Important Log Files

-Host abruptly rebooted – vmksummary.log
-Slow boot issues – /var/log/boot.gz .  You can also enable serial logging (Shift + o)
-ESXi not responding – hostd.log & hostd-probe.log
-VM issues – vmware.log
-Storage issues – vmkernel.log
-Network and storage issues – vobd.log
-HA issues – fdm.log   /opt/vmware/fdm/prettyprint.sh hostlist | less

7 ESXi Commands
-Monitor & configure ESXi – esxcli
-VMkernel sysinfo shell command – vsish get /bios; /hardwareinfo;


-Manage ESXi * VM config – vim-cmd

-VMFS volumes & virtual disks – vmkfstools
-Detailed memory stats – memstats
-network packet capture – pktcap-uw
-monitoring – esxtop

7 Configuration Files
-/etc/vmware/esx.conf – storage, networking, HW info
-/etc/vmware/hostd/vminventory.xml – VM inventory
-/etc/vmware/hostd/authorization.xml – vCenter to ESXi host connection
-/etc/vmware/vpxa/vpxa/cfg – vCenter and ESXi connectivity
-/etc/vmware/vmkiscsid/iscsi.conf – iSCSI configuration
-/etc/vmware/fdm – HA config
-/etc/vmware/license.cfg – license configuration

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