vMotion fails to migrate VMs between ESXi host which have the same configuration

vMotion fails to migrate VMs between ESXi host which have the same configuration

As a rule vMotion requires the same family of CPU among involved servers which ensure the same feature set to be presented in order to succeed. This is obvious statement, if you have for example Intel Xeon V3 and v4 CPU generations in your cluster you need EVC in order to make it work. But recently I have came across and issue that vMotion were failing to migrate VMs between hosts with identical configuration. That were Dells R730 with V3…

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Perennially reservations weird behaviour whilst not configured correctly

Perennially reservations weird behaviour whilst not configured correctly

Whilst using RDM disks in your environment you might notice long (even extremely long) boot time of your ESXi hosts. That’s because ESXi host uses a different technique to determine if Raw Device Mapped (RDM) LUNs are used for MSCS cluster devices, by introducing a configuration flag to mark each device as perennially reserved that is participating in an MSCS cluster. During the start of an ESXi host, the storage mid-layer attempts to discover all devices presented to an ESXi host…

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vCloud Director 9 – Released!

vCloud Director 9 – Released!

Today new version of VMware vCloud Director for Service Providers was released. There are plenty of new features and enhancements like: vVols support Increased vCD-vCenter latensy up to 100 ms Multisite feature which lets service providers offer a single port of entry to Tenants having multiple Virtual Data Centers (Org vDC’s) in different instances of vCD Ability to manage routing between two or mogr Org vDC Networks with NSX DLR PostgreSQL database support as an externam database There are a few…

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VMUG VIRTUAL EMEA 2017 – 28 September

VMUG VIRTUAL EMEA 2017 – 28 September

Tomorrow starts VMUG Virtual EMEA 2017 – it is a great oppportunity for all of those who missed VMworld or was not able to participate in-person or even online. It is a huge oportunity to learn about newest technology from VMware and supporting companies, play around with dedicated Hans-on labs and so on. You can register for the event here. As of VMUG website definition it is a FREE day-long event is meant to empower you through education, training, and collaboration…

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Configuring the Dukes Bank Sample Application Blueprint

Configuring the Dukes Bank Sample Application Blueprint

In the previous part importing steps of Dukes Bank Sample Application Blueprint were described. Now it’s time to perform additional configurations steps to makes it works. (If you thought that you will be able to request sample three-tier app out of the box after you import it, you were wrong! Do not worry I overinterpreted it also when first seeing it during a training long time ago ;)) But going back to vRA Dukes Bank App – after successful import…

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VCIX6-CMA – another goal achieved

VCIX6-CMA – another goal achieved

It is almost a tradition or habbit for me to share my experience about VMware exmination taken so far. Well, it happened, I eventually passed the VCAP6-CMA Design exam which together with previos passed VCAP6-CMA Deploy exam gave me VCIX6-CMA tiltle and badge. It looks like this:Nothing special, it was not an easy way to get it, though! The biggest problem with that IMHO is that it is and old version which is based on vRA 6.X, whilst we currently…

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Importing the Dukes Bank sample application blueprint – Introduction to vRealize CloudClient

Importing the Dukes Bank sample application blueprint – Introduction to vRealize CloudClient

Have you just installed the vRealize Automation in your lab and do not know how to start the journey with services? The Dukes Bank for vSphere application might be a perfect start for you! But what is that mystery Dukes Bank application ? It is not widely known that there are let’s say “embedded” samples of multi-tiered vRealize Automation blueprints  that includes multiple machine components with networking and software components. The reason that it is not known by many is…

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VMware Virtual SAN 6.6 what’s new

VMware Virtual SAN 6.6 what’s new

vSAN 6.6 it’s 6th generation of the product and there are more than 20+ new features and enhancements in this release, such as: Native encryption for data-at-rest Compliance certifications Resilient management independent of vCenter Degraded Disk Handling v2.0 (DDHv2) Smart repairs and enhanced rebalancing Intelligent rebuilds using partial repairs Certified file service & data protection solutions Stretched clusters with local failure protection Site affinity for stretched clusters 1-click witness change for Stretched Cluster vSAN Management Pack for vRealize Enhanced vSAN…

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vCenter 6.5 DSN permissions

vCenter 6.5 DSN permissions

Recently we had some strange problems with our 6.5 lab vCenter (Windows version with MSSQL Server db), which frequently crashed. After some digging in vpxd logs it seem to be related to vc db permissions: “17-05-28T19:36:53.443+02:00 error vpxd[05420] [Originator@6876 sub=Default] [VdbStatement] SQLError was thrown: “ODBC error: (42000) – [Micrsoft][SQL Server Native Client 11.0][SQL Server]VIEW SERVER STATE permission was denied on object ‘server’, database ‘master’.” is returned when executing SQL statement “SELECT  DB_NAME(mf.DATABASE_ID) Db_Name,            CASE mf.FILE_ID…

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vCenter Appliance 6.0 U3 email notifications are not sent when multiple email addresses are defined in an alarm action

vCenter Appliance 6.0 U3 email notifications are not sent when multiple email addresses are defined in an alarm action

Recently I tried to configure email notifications on my lab vCenter Server Appliance (6.0u3), but  experience issue:  “Diagnostic-Code: SMTP;550 5.7.60 SMTP; Client does not have permissions to send as this sender” I tried to use solution from kb: https://kb.vmware.com/kb/2075153 but apparently, the solution does not work with latest 6.0.x appliance! After some research and digging deeper (header analysis ), it seems that root cause was invalid return path in the email header. To resolve this you need to edit two…

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