Recent Posts

vSphere Replication and Virtual Raw Device Mappings

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Some vSphere administrators utilize a storage feature called “raw device mapping” or RDM. There are two types of RDM – virtual RDM and physical RDM. For more information on RDM, please see the vSphere 6.0 Documentation Center. In general, I recommend using VMDK files or Virtual Volumes, but there are certain benefits of RDM. “Does Read more...

vSphere Replication Synchronization Types

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vSphere Replication is VMware’s hypervisor-based virtual machine replication solution that is included with vSphere Essentials Plus Kit and higher editions. We commonly get questions around the differences between the various types and modes of synchronization — or “sync” — vSphere Replication utilizes. This article covers sync types and modes and discusses related performance improvements introduced Read more...

vSphere Replication Without DNS

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I believe most individuals know proper DNS configuration is essential to a smooth operating VMware environment – or pretty much any environment, for that matter. However, there are a few cases where certain components must be deployed to an environment that does not have DNS servers. I had a question about this specific to vSphere Read more...

vSphere Replication Target Storage Consumption

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vSphere Replication is an asynchronous, host-based replication feature that is included with vSphere Essentials Plus Kit and higher editions. It can be used as a standalone solution for simple, storage-agnostic, cost-effective virtual machine replication. vSphere Replication also serves as a replication component for VMware vCenter Site Recovery Manager (SRM) and VMware vCloud Air Disaster Recovery. When Read more...

Enable SSH Root Login for vSphere Data Protection

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VMware vSphere Data Protection (VDP) is a backup and recovery solution based on EMC Avamar that is included with vSphere Essentials Plus Kit and higher editions of vSphere. VDP is deployed as a virtual appliance running a Linux guest operating system (OS). I have had several individuals ask about enabling the ability to log into Read more...

vSphere Replication 6.0 Compression

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VMware recently introduced vSphere version 6.0. One of the features of vSphere 6.0 is vSphere Replication 6.0, which is included in the Essentials Plus Kit and higher editions of vSphere. The reason I mention that explicitly is there are still many VMware customers and partners that do not realize they have access to a mature, Read more...

vSphere Data Protection – SharePoint VSS writer registration failed

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I was working with the SharePoint agent and came across the following error message: SharePoint VSS writer registration failed. On a Windows Server 2012 R2 VM running SharePoint Server 2013, I found the location of stsadm.exe here: C:Program FilesCommon Filesmicrosoft sharedWeb Server Extensions15BIN I ran this command which fixed the issue: stsadm.exe -o registerwsswriter @jhuntervmware Read more...

vSphere Data Protection (VDP) – Removing an External Proxy

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It is not particularly clear how to remove a vSphere Data Protection (VDP) external proxy in the vSphere Data Protection (VDP) 5.8 Administration Guide. Before I get into that specifically, I should probably start with what a VDP external proxy is and how it is deployed. The external proxy functionality is currently only available with Read more...

MySQL VM Backup with vSphere Data Protection

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I often get questions regarding backup of a MySQL database server (VM) using vSphere Data Protection (VDP). VDP does not have an agent for MySQL, but you can of course perform an image-level (entire-VM) backup of a VM running MySQL. With VDP and many other backup solutions that use the vSphere APIs for Data Protection Read more...