vmware

VCAP6.5-DCV Design - Objective 2.3 Build availability requirements into a vSphere 6.x logical design

This blog post covers objective 2.3 (Build availability requirements into a vSphere 6.x logical design) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017). The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622). I think they also apply to the current version of the exam:

Why we need a vSAN licensing for SMB customers

Not every customer is running a full-blown vSphere Enterprise Plus licensing. To be honest, when I look at the number of sold licenses, most of my customers are running vSphere Essentials Plus. Not Essentials, nor Standard or Enterprise (Plus), but two or three hosts with Essentials Plus. And that’s perfectly fine! Two or three hosts with 10 GbE and pretty often 12G SAS. Some of them with Fibre-Channel, nearly no one with iSCSI.

VMware ESXi 6.7: Recurring host hardware sensor state alarm

If you found this blog post because you are searchting for a solution for a FAN FAILURE on your ProLiant Gen10 HW after applying the latest ESXi 6.7 patches, then use this shortcut for the workaround: Fan health sensors report false alarms on HPE Gen10 Servers with ESXi 6.7 I had a really annoying problem at one of my customers. After deploying new VMware ESXi hosts (HPE ProLiant DL380 Gen10) along with an upgrade of the vCenter Server Appliance to 6.

VCAP6.5-DCV Design – Objective 2.2 Map service dependencies

This blog post covers objective 2.2 (Map service dependencies) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017). The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622). I think they also apply to the current version of the exam: Evaluate dependencies for infrastructure and application services that will be included in a vSphere design Create Entity Relationship Diagrams that map service relationships and dependencies Analyze interfaces to be used with new and existing business processes Determine service dependencies for logical components Include service dependencies in a vSphere 6.

vCenter Migration from 6.0 to 6.7 fails due to missing user role

Actually, yesterday should be the day at which I migrate one of the last physical Windows vCenter servers installed in my customer base. Actually… the migration failed twice. And each time I had to rollback, power-on the old physical server, reset the computer account etc. The update was from VMware vCenter Server 6.0 Update 3d (7462484) on a Windows 2012 R2 server to vCenter Server 6.7 Update 3 (Appliance). The migration failed at 62% with the following message:

VCAP6.5-DCV Design – Objective 2.1 Map business requirements to a vSphere 6.x logical design

The last few weeks have been quite busy. Time to focus on exam preparation again. Let’s start with the first objective of the second section. This blog post covers objective 2.1 (Map business requirements to a vSphere 6.x logical design) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017). The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622).

VCAP6.5-DCV Design - Objective 1.3 Determine risks, requirements, constraints, and assumptions

This blog post covers objective 1.3 (Determine risks, requirements, constraints, and assumptions) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017). The first objective of the exam prep guide has covered the business requirements. Now we have to do similar for the affected applications. The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622).

VCAP6.5-DCV Design – Objective 1.2 Gather and analyze application requirements

This blog post covers objective 1.2 (Gather and analyze application requirements) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017). The first objective of the exam prep guide has covered the business requirements. Now we have to do similar for the affected applications. The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622).

Out of space - first steps when a datastore runs out of space

This is a situation that never should happen, and I had to deal with it only a couple of times in more than 10y working with VMware vSphere/ ESXi. In most cases, the reason for this was the usage of thin-provisioned disks together with small datastores. Yes, that’s a bad design. Yes, this should never happen. There is a nearly 100% chance that this setup will fail one day. Either because someone dumps much data into the VMs, or because of VM snapshots.

User vdcs does not have the expected uid 1006

Sorry for the long delay since my last blog post - busy times, but with lots of vSphere. :) Today, I did an upgrade of a standalone vCenter Server Appliance at one of my healthcare customers. The vCenter was on 6.0 U3 and I had to upgrade it to 6.7 U2. It was only a small deployment with three hosts, so nothing fancy. And as with in many other vSphere upgrades, I came across this warning message: