Category Archives: vSphere

VMware Paravirtual SCSI Adapter (PVSCSI)

For virtual machines with high disk I/O requirements, such as Tier 1 SQL Servers, you should consider configuring the VM with the VMware Paravirtual SCSI Adapter (PVSCSI). The PVSCSI adapter was introduced in ESX/ESXi 4.0 and is virtualisation aware. It … Continue reading

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VMware vSphere Metro Storage Cluster (vMSC)

VMware vSphere Metro Storage Cluster (vMSC) is not a product but a certified configuration where a vSphere cluster spans geographical locations. This could be spread across a campus, metropolitan area or a larger area up to 200 km apart. vMSC … Continue reading

Posted in NetApp, Storage, VMware, vSphere | 1 Comment

Windows Server 2012 R2 VM Network Adapter

When creating a Windows Server 2012 virtual machine the network adapter type defaults to E1000. I have seen reports of this dropping network connections and packet loss on Windows Server 2012. There is a newer emulated network interface available for … Continue reading

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What’s New in VMware vSphere 6

vSphere 6 was announced at the start of February 2015 and is now available for download. This version is marketed, in VMware’s words, as “the industry-leading virtualisation platform which empowers users to virtualise any application with confidence, redefines availability, and … Continue reading

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VMware EVO:RAIL

At VMworld 2014 in San Francisco VMware announced VMware EVO:RAIL, a hyper-converged infrastructure appliance. There had been rumours of this project over the preceding months under the code name MARVIN and many thought VMware were going to get into the … Continue reading

Posted in VMware, vSphere | 1 Comment

VCP5-DCV Recertification

Today, 1st October 2014, VMware released a cut down VCP recertification exam. As you all should know, your VMware Certified Professional (VCP) certification now has an expiry of two years after you took it. You can extend its validity by … Continue reading

Posted in Certification, VMware, vSphere | 2 Comments

Editing vCenter VM Settings with Hardware Version 10

When using vSphere 5.5 if you upgrade your vCenter server to VM Hardware Version 10 then you will only be able to edit it via the vSphere Web Client. If the setting you are need to edit requires the VM … Continue reading

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Moving a VMFS Volume to a Different Site

Recently I wanted to copy a VMFS volume from one site to another but the VMFS volume did not automatically mount at the new site. Using my storage array’s replication technology I replicated the LUN (containing an existing VMFS Datastore) … Continue reading

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ESXi 5.5 Hosts Not Restoring Storage Paths Following SAN Switch Failure

While performing resilience tests for a customer I identified that following the failure of a SAN switch the ESXi hosts did not restore lost storage paths once the SAN switch was brought back into service. The infrastructure in question was … Continue reading

Posted in Flex System, IBM, Storage, VMware, vSphere, XIV | 2 Comments

Upgrading VMware vCenter from v5.1 to v5.1 Update 1 Multi-Site SSO

I have recently upgraded a VMware vCenter 5.1 with Multi-Site Single Sign On from version 5.1 to version 5.1 update 1. This is the process I used and some observations. I upgrade one site completely first and left it running … Continue reading

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