What to the DCUI console logs show

The DCUI is made of these logs




1. Syslog.log
2. Vmkernal.log
3. Config  ((sysboot.log))
4. Management Agent (hostd.log)
5. Virutalcenter agent (vpxa.log)
6. Vmware esxi observation log (vobd)




Syslog.log    
Management service initialization, watchdogs, scheduled tasks and DCUI use.
Check to see what happens in the console.
Check scheduled tasks,
vmware-watchdog: watches over hostd and restarts it if things go wrong.
Also viewable as https:// [ YOURESXhostIP] /host/syslog.log


Vmkernal.log
Core VMkernel logs, including device discovery, storage and networking device and driver events, and virtual machine startup.
The VMkernel is the kernel used by VMware ESX. It provides basic operating system services needed to support virtualization: hardware abstraction, hardware drivers, scheduler, memory allocator, filesystem (vmfs), and virtual machine monitor (vmm).
Pasted from <http://www.quora.com/What-is-the-VMkernel>
Also viewable as https:// [ YOURESXhostIP] / host/vmkernel.log




Config (sysboot.log)
Early VMkernel startup and module loading.
Also viewable as https:// [ YOURESXhostIP] /host/sysboot.log
**Weird right?  Config in DCUI is actually sysboot.log if you browse for it.




Management Agent (hostd.log)
Host management service logs, including virtual machine and host Task and Events, communication with the vSphere Client and vCenter Server vpxa agent, and SDK connections.
hostd is an app that runs in the Service Console that is responsible for managing most of the operations on the ESX machine.  It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc.  Most all commands or operations come down from VC through it.  ie, powering on a VM, vmotion'ing it, creating it, etc.
Pasted from <http://communities.vmware.com/message/572225>
Also viewable as https:// [ YOURESXhostIP] /host/hostd.log




Virtualcenter agent (vpxa.log)
vCenter Server vpxa agent logs, including communication with vCenter Server and the Host Management hostd agent
Vpxa runs if you are connected to  a vsphere server. Standalone esxi wouldn’t use it.
vpxa also runs on the Service Console and talks to VC.  I believe it acts as an intermediary between VC and hostd.  Pasted from <http://communities.vmware.com/message/572225>
Also viewable as https:// [ YOURESXhostIP] /host/vpxa.log


Vmware esxi observation log (vobd)
VMkernel Observation events, similar to vob.component.event.
Also contains logs for failed login attempts.
Pasted from <http://kb.vmware.com/selfservice/search.do?cmd=displayKC&docType=kc&externalId=2000540>
Also viewable as https:// [ YOURESXhostIP] /host/vobd.log




**
mgmt-vmware is just a simple script that starts up hostd and vpxa.


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Also reference: http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&externalId=2004201