Running ESXi in “Degraded Mode”, what does that mean?

Advertise here with BSA I received a question today, and I didn’t have the answer so I reached out to one of the developers. This person found this line in the ESXi documentation where it states the following, and the question was what does running ESXi in degrade mode actually means, or what is the impact? If a local … [Read more...]

The ramdisk ‘var’ is full on ESXi host and fix (without maintenance mode or reboot)

I recently encountered an issue where vMotions on a host would fail, the host would disconnect from vCenter, and some other strange errors. This was an HP host installed with the HP ISO image, but not sure if that is the cause of this issue. When investigating the logs on the host I noticed that /var on the ramdisk was … [Read more...]

Boot error: Shutting down firmware services… error after upgrading to VMware ESXi 6.7 Update 3

After upgrading one of my home lab servers to VMware ESXi 6.7 Update 3, I’ve got the following error when trying to boot: Shutting down firmware services… Page allocation error: Out of resources Failed to shutdown the boot services. Unrecoverable error After changing the boot mode from UEFI to … [Read more...]

VMware: New Rollup Bulletins Simplify VMware ESXi Updating

VMware ESXi patches are released periodically to resolve issues or address security vulnerabilities – just like any other software product. These updates can either be downloaded automatically through VMware vSphere Update Manager (VUM) or manually by logging in to My VMware. Regardless of delivery means, the contents … [Read more...]

VMware: VMSA-2017-0006 VMware ESXi, Workstation and Fusion updates address critical and moderate security issues

VMware has released security patches for the VM-Escape Security Bug. http://www.vmware.com/security/advisories/VMSA-2017-0006.html Products affected is ESXi, Workstation, Player and Fusion. VMware ESXi 6.5   Downloads:https://my.vmware.com/group/vmware/patch Documentation:  http://kb.vmware.com/kb/2149573 VMware ESXi … [Read more...]

VIB requires VSAN 6.0.0-2.34 but the requirement cannot be satisfied within the ImageProfile

Today I tried to upgrade my ESXi hosts to ESXi 6.0 Update 2. Since it is just a home lab booted from USB and I don’t use update manager, the easiest way for me is to update using the downloaded ZIP bundle. In my SSH session I ran: esxcli software vib update … [Read more...]

Wishlist: KB article with Log Insight queries

With VMware Log Insight you can create great queries. For some environments we have known bugs and since we can’t always update as fast as we would like, I’ve built some simple queries to alert me whenever the bug is more likely to kick in.  For example, I have a query that warns me by e-mail when the logs … [Read more...]

vSphere 5.5 nuggets: Change Disk.SchedNumReqOutstanding per device!

Always wanted to change Disk.SchedNumReqOutstanding per device instead of per host? Well now with vSphere 5.5 you can! I didn’t know about this either, but my colleague Paudie pointed this out. Useful feature when you have several storage arrays and you need to tweak these values, now lets be clear… I do … [Read more...]

ESXi “Management traffic” tickbox, what does it do?

I have seen this popping up various times over the last few years. That little tickbox on your VMkernel NIC that says “Management traffic” (aka management network) what is it for? What if I untick it, will SSH to that VMkernel still work? Will the HA heartbeat still work? Can I still ping the VMkernel NIC? … [Read more...]

Backup the ESXi configuration and update the status in vCenter

I create a simple PowerCLI script that backups all the ESXi hosts configurations that are connected in a vCenter server and displays the backup status in vCenter. To display the backup status in vCenter I created a global custom attribute called “Last ESXi Backup”. After the ESXi PowerCLI backup script runs the  … [Read more...]