DefinIT Because if IT were easy, everyone would do it…

12Feb/140

VMware vSphere Mobile Watchlist released

Posted by Simon Eady

For those of you unaware VMware recently released the VMware vSphere Mobile Watchlist

What does it do?

"VMware vSphere Mobile Watchlist allows you to monitor the virtual machines you care about in your vSphere infrastructure remotely on your phone. Discover diagnostic information about any alerts on your VMs using VMware Knowledge Base Articles and the web. Remediate problems from your phone by using power operations or delegate the problem to someone on your team back at the datacenter."

Features include..

  • REMEDIATE REMOTELY
    Use power operations to remediate many situations remotely from your device.
  • VMS AT A GLANCE
    Review the status of these VMs from your device including: their state, health, console and related objects.

I have been using it for a day or so and I have found it very useful, presently I have it installed on my Android Phone and Tablet.

If you consider using this in conjunction with VPN or whatever your preferred secure method to connect to your work LAN when you are "out and about" its a great way to quickly take a look at any problematic VMs without needing to fire up your laptop.

Its available on Android and iOS and is well worth a quick look.

4Feb/140

Trouble shooting – esx.problem.visorfs.ramdisk.full

Posted by Simon Eady

Problem

Fairly recently I came across this error message on one of my hosts "esx.problem.visorfs.ramdisk.full"

Fallout

While trying to address the issue I had the following problems when the ramdisk did indeed "fill up"

  • PSOD (worst case happened only once in my experience)
  • VM's struggling to vMotion from the affected host when putting into maintenance mode.

Temporary workaround

A reboot of the host would clear the problem (clear out the ramdisk) for a short while but the problem will return if not addressed properly.

Environment

  • Clustered ESXi hosts (version 5.1)
  • vCenter 5.1

Steps taken

First of all I had to see just how bad things were so I connected to the affected host via SSH ( you may need to start the SSH service on the host as by default it is usually stopped)

Using the following command I could determine what used state the ramdisk was in.

vdf -h

ramdisk_full

 

 

 

 

(using an example output)

It was clear the root was full so now to find out what was filling it up so I searched KB articles for answers below were more the more helpful ones.

Unlike many of the other articles I had read which all seemed to point to /var/log being the cause the culprit in this instance was the /scratch disk

After doing some quick reading it was clear I could set a separate persistent location for the /scratch disk. So I followed the VMware KB article on this process and rebooted the host to apply the changes.

The gotcha

Even though I had followed the article to the letter and rebooted the host the changes did not apply on this host as when I double checked the ramdisk and this was the output as you can see the used space was already growing and when I put the console window side by side with the other hosts it was growing rapidly whereas the other hosts were quite static in used space.

street

 

 

 

 

 

It was not until I rebooted the host again did the changes I made apply, I will point out that this was the only time this little issue occurred the other hosts only required one reboot after changing the /scratch location.

Finally

After the second reboot I could see the host was as it should be

2014-02-04_135244

30Jan/140

vCSA 5.5 won’t join AD Domain‏

Posted by Simon Eady

Just a quick post on something that was not immediately obvious when it happened to me.

When deploying  vCSA 5.5 and trying to add it to the domain, I was presented with the following error.

vCSA error

 

 

 

 

 

I immediately did all the all the usual checks, making sure it had a static IP and correct DNS servers etc..

The one thing missing however was a FQDN for the hostname (in the network tab).

All I had was "vCSAname"

But what was required to join a domain was "vCSAname.domain.local"

After I applied this change the vCSA connected to the domain without a problem.

As always with these niggles its simple when you know how!

28Jan/140

South West UK VMUG ready to launch! – 18th February

Posted by Simon Eady

So what is VMUG?vmug-logo

The VMware User Group (VMUG) is an independent, global, customer-led organization, created to maximize members’ use of VMware and partner solutions through knowledge sharing, training, collaboration, and events.

Presently there are five VMUGs in the UK including the latest addition - South West UK VMUG - @swukvmug

Why am I involved and why should you come along?

I had been using VMware products for over 3 years and after joining twitter it was very clear to me the VMware user community was very friendly and also very helpful, it was there I learned about VMUG so the chance to meet and greet other users like myself and of course learn from the "rockstars" was to good an opportunity to pass up, after attending several meetings I was completely sold.

VMUG meetings are a great place to meet like minded IT professionals who share a passion for VMware technologies, often you can meet bloggers and experts and will get to hear updates from what is new at VMware and other related virtualization technologies.

Lets not also forget that there is free food! and free vBeers afterwards (courtesy of 10Zig!)

I have heard enough Sign me up!

17Jan/140

VCP5-IaaS – Exam experience

Posted by Sam McGeown

VCP5-Cloud So this morning I took the VMware Infrastructure as a Service exam (VCPVCD510) to gain the VCP5-Cloud qualification. The IaaS exam is available for existing VCP5-DCV holders to take without any other pre-requisites. I am very pleased to say I finished the exam in good time and scored 466/500 – the pass mark is 300.

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