Solved

ESX server hang/crash

Posted on 2011-03-16
2
1,194 Views
Last Modified: 2012-05-11
I have a ESX blade in a HP enclosure.  It stopeed talking to VCenter to the point I could only access it from the physical console.

i rebooted the ESX blade & it took about 25 minutes to shutdown, it came back up quick.

Any tips on finding the root cause?

Looking at /var/log/messages I see a lot of:

syslogd 1.4.1: restart.

once an hour up until i rebooted, then they stopped.
0
Comment
Question by:someITGuy
2 Comments
 
LVL 16

Accepted Solution

by:
danm66 earned 500 total points
ID: 35153914
You will want to look at the /var/log/vmkernel (/var/log/vmkwarning catches most of the errors and warnings that are in vmkernel so scan it first) and /var/log/vmware/hostd.log logs.  The hostd.log can roll pretty quickly, so you may want to generate a log bundle before they are all overwritten.

in hours/days prior to the hang, did you have any storage issues?  That is a frequent cause of this type of behavior.  The management process (hostd) gets hung up by another process waiting on a response that isn't going to come because storage is acting abnormally and then it can't process commands to/from VC or the vsphere client when trying to connect directly to the host.
0
 
LVL 9

Expert Comment

by:predragpetrovic
ID: 35164102
Hi,

i had some issues like that on Sun and HP blades. After opening support cases with VMware, Sun and HP we have found out that the driver for the RAID cards were causing this issue on Sun (VMware made the patch) and on HP it was resolved with firmware upgrade of each component (servers and switches).

This problem was causing the ESX/ESXi server to stop responding to network requests, no I/O to storage infrastructure and the only way to make the server responsive was to power cycle the host.

P.
0

Featured Post

How to improve team productivity

Quip adds documents, spreadsheets, and tasklists to your Slack experience
- Elevate ideas to Quip docs
- Share Quip docs in Slack
- Get notified of changes to your docs
- Available on iOS/Android/Desktop/Web
- Online/Offline

Join & Write a Comment

This is an issue that we can get adding / removing permissions in the vCSA 6.0. We can also have issues searching for users / groups in the AD (using your identify sources). This is how one of the ways to handle this issues and fix it.
In this article, I will show you HOW TO: Create your first Windows Virtual Machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, the Windows OS we will install is Windows Server 2016.
Teach the user how to convert virtaul disk file formats and how to rename virtual machine files on datastores. Open vSphere Web Client: Review VM disk settings: Migrate VM to new datastore with a thick provisioned (lazy zeroed) disk format: Rename a…
This video shows you how easy it is to boot from ISO images for virtual machines with the ISO images stored on a local datastore on the ESXi host.

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now