Posts related to Virtualization and Cloud technology based on VMware products.
Monitoring VM performance is important part of managing virtual infrastructure. There are many tools out there to help on that matter, but very often I find myself going via the performance charts of a certain virtual machine looking for something that can cause performance penalties. To get sufficient overview, usually… Continue reading
VMware vSphere 6.5 is finally general available and everyone who wants can download and install on their dev/test/prod environments. I’ve been working with vCenter Server for many years, but always the preferred corporate platform was Windows, so I was using the windows based vCenter. With version 6.5 there are lots… Continue reading
It’s been a while since we experienced partial outage on our storage infrastructure running under IBM SVC storage. Few LUNs (vdisks in IBM SVC world) presented from storage went offline. I’m not going into details why it happened as HW problems just happens sometimes. Important thing is how are you… Continue reading
Having the appropriate access levels assigned to each user or group helps mitigate the security concerns as well as lowers the risk of human error. You certainly don’t want people other than VMware admins to mess with hosts, clusters, virtual switches or the storage. There are some predefined Roles which… Continue reading
You may already have heard about known issue with Intel Broadwell Family CPUs (Intel Xeon CPU E5-26xx v4 CPUs) where you can hit Exception 14 PSOD if you are running older microcode. If not, you can read about it in kb2146388 From there you can clearly see you need to… Continue reading
VSAN Health-Check This post will be quite short. As you may know the VSAN health-check plugin has a possibility to automatically download HCL and compare your configuration against it. While in some environments it can be normal to provide internet access to vCenter server machine, in most enterprises vCenter servers… Continue reading
Day-to-day troubleshooting What is the link between datastore extension and root password? Last week, I was asked for help: a junior VMware administrator, fresh VCP certified, was facing issues with extending a datastore. After a storage team extended the SAN LUN under the datastore, you can see the new size… Continue reading
App Volumes is a real-time application delivery solution accuired by VMware recently from CloudVolumes. Personally for me it is not just this, but much more and I will try to show how it can be used in different scenarios and pool designs. I will start with how to install and configure the… Continue reading
Background This will be a short article for those who need to replace the driver used for MegaRAID SAS 9361-8i on ESXi 6. MegaRAID SAS 9361-8i is the default controller used in Softlayer and if your plan is to run vSphere 6 with VSAN on it, you need to know some… Continue reading
As you may know, ESXi Management interface (aka vmk0) is created during installation. By default that interface will inherit MAC address of one of the physical NIC cards. Now, this is not a problem at all in most cases, but sometimes it can create problems. For example imagine a situation… Continue reading
