Yesterday, 2015-09-10, VMware released vSphere 6 Update 1 (U1) and it contains quite a few enhancements and a lot of resolved issues in the following areas: ESXi API Backup CIM Installation Guest Operating System Security Storage Network Upgrade vCenter Server Upgrade Issues vCenter Single Sign-On Issues Security Issues Storage Issues vCenter Server, vSphere Web Client, …
Tag Archive: ESXi
ESXi mgmt network lost when adding ESXi to VDS
So the other day a had a very unpleasant experience when adding a few new ESXi hosts, version 5.5 U2 including the latest patch, to an existing vCenter Server (5.5 U2e) vNetwork Distributed switch (VDS). I used the wizard in the vSphere web client and followed the recommendation but i guess i could have made …
VMware Tools for nested ESXi version 1.2 released
As i wrote almost two years ago here, VMware labs got a VMware Tools fling for nested ESXi. This fling is still relevant when running ESXi 5.5 but for ESXi 6.x it is installed by default. A few days ago a new version was added including the following enhancements: Guest Time Synchronization Larger resource pool …
Heads up! LUNs attached to VMware vSphere 6.0 hosts may remain in APD Timeout state
28 July VMware released a knowledgeable article describing a problem with ESXi 6.0 and the All Path Down (APD). The problem is that a LUN that have experienced an APD state never exist the APD state and the LUN is not accessible from the ESXi host even though the connection between the ESXi host and the …
Upgrade to vSphere ESXi 6 via command line
The other day i had to upgrade my lab ESXi mgmt server from version 5.5 to 6.0 host via the command prompt and it’s actually pretty straight forward. I took the following steps to perform the upgrade: Download the latest ESXi version from the VMware website Log on to the ESXi server using SSH Verify running ESXi version …
Upgrade to vSphere ESXi 6.0 via Nutanix PRISM
So one of the cool things with the Nutanix PRISM interface is that more and more software components can be managed from this single interface. I created a post a while back where i showed how we can easily upgrade the Nutanix Operating System and you can fint it here. This blog will be about …
Hypervisor resource utilization question
When you determine the amount of resources you need for your virtualised environment you need to include several things such as: Hypervisor CPU requirements Hypervisor RAM requirements Hypervisor disk requirements Hypervisor CPU and or RAM requirement per running VM VM CPU requirements VM RAM requirements On top of this some hypervisors allows for resource oversubscription …
ESXi 6.0 Change Block Tracking patch released
Great news, yesterday 2015-05-14, VMware released the patch for the ESXi 6.0 Change Block Tracking (CBT) patch that affected all customers running ESXi 6.0 no matter if you upgraded to ESXi 6.0 or did a fresh install of ESXi 6.0. The patch will make it possible to backup your virtual machines (VMs) when CBT is turned …
Storage vMotion fails with error Already disconnected
This blog post applies to vCenter Server version 5.5. U2d and ESXi server version 5.5 U2a. A few days back i got involved in a virtual machine migration (VM) issue. The VMs were suppose to be migrated from one vSphere cluster to another without any chance of mounting one of the vSphere clusters datastore(s) to the other …
vSphere 6.0 blog – Virtual Machine Virtual Hardware (vHW 11)
Another short blog post on the vSphere 6.0 theme. This one will describe the new features and the configuration options for the new virtual machine (VM) virtual hardware version 11 that comes with ESXi 6. Configuration 128 vCPUs 4 TB RAM to 12 TB RAM (depending on partner) 62 TB VMDK size ? (not yet …
Changes in ESXi Transparent Page Sharing (TPS) behaviour
TPS makes it possible for ESXi to share (read access) physical RAM between virtual machines to increase the virtual machine consolidation ratio. This is to increase security even further VMware will start shipping ESXi without TPS enabled by default according to the following schedule: ESXi 5.5 Update release – Q1 2015 ESXi 5.1 Update release …
ESXi hosts disconnected in vCenter Server
While upgrading a VMware vCenter Server to the latest release, 5.5 Update 1b which can be downloaded here, i ran into two issues while trying to connect the ESXi hosts when the upgrade was completed. The ESXi hosts were all disconnected after the vCenter Server upgrade. The solution/s to my problem/s are documented in different VMware knowledge …
HP HPSA driver 5.x.0.58-1 can cause ESXi 5.x PSOD
A few days ago i received a call from one of my old customers who asked for advice regarding a VMware ESXi 5.5 Purple Screen Of Death (PSOD) situation. He had already created a VMware service request but wanted a chat while waiting for a reply. I quickly searched the HP support center web site …
VMware ESX 4.x & VMware ESXi 4.x End of Life
It has now (2014-05-21) been 5 years since the VMware hypervisor release 4.x was released. For those of you still running VMware ESX 4.x and/or VMware ESXi 4.x should consider to perform an upgrade or a clean installation since the product actually reached end of life (EOL) 2014-05-21. R.I.P VMware vSphere 4 – Cloud Operating …
ESXi 5.1 U1 Purple Screen of Death
A few days ago i was contacted by a customer who was running vSphere 5.1 U1 which is about one year old. For various reasons they have not yet upgraded to a later version of vSphere 5.1 or to vSphere 5.5. However, there has been quite some time since i a have seen a purple screen …
ESXi 5.1 VMFS HeapSize configuration using PowerCLI
There are a few of my customer still running vSphere 5.1 U1 and one of them reported an issue related to the VMFS Heap Size (VMFS3.MaxHeapSizeMB) configuration a few days ago. Keep in mind that my customer upgraded to U1 from a previous vSphere 5.1 version meaning that the old VMFS3.MaxHeapSizeMB was retained at 80 MB …