ESXi and Nimble Storage Unmap SCSI Blocks

OverView Back in vSphere 5 a new VAAI primitive called unmap was released. When using thin provisioned volumes or LUNs for VMFS datastores, actions such as storage vMotion, consolidating snapshots and deleting data (such as VMDK files) do not automatically reclaim the space on the underlying datastore. For example, if you have a thin provisioned 1TB datastore that… Read More »

Matt

vSphere 6 – Add Second External PSC to Nested Lab Environment

For my lab, I run everything nested within VMWare workstation, which is running on a single Dell physical host that runs Windows for the base OS. Over the past couple of months, I’ve been trying to spend a bit more time in the lab, mostly for learning some components of the vSphere environment I’m not familiar with, but… Read More »

Matt

vSphere 6 – Reconfigure Embedded vCenter to External PSC

Introduction As of vSphere 6.0U1, VMware allow an embedded vCenter server deployment to be reconfigured to an external deployment, which demotes the Platform Services Controller (PSC) components of the embedded node and points the VC server to an external PSC node which resides in the same Single Sign On (SSO) domain as the source embedded node. This is done… Read More »

Matt

vCenter Host Profile Core Storage PSP Configuration – Nimble Storage

I’m working on rolling out vCenter Host Profiles at work, to keep an eye on our configuration and also to assist in the deployment of new ESXi servers into our environment. If you haven’t checked out host profiles and you have a VMWare Enterprise Plus license, it is a must! I’m working through a few of our clusters… Read More »

Matt

Windows Server 2012 R2 as iSCSI Target – Network Binding

I’m still getting my lab configured and I am planning on using Windows Server 2012 R2 as an iSCSI target (as well as an NFS server). The server in my environment is called Storage01. I’ve added 2 NICs to the machine, and was trying to figure out where to set the network binding for the iSCSI traffic. It wasn’t where… Read More »

Matt

Exchange 2013 Hybrid Mail ‘Pending’ – RootCAType Certificate Issues

I manage an Exchange 2013 deployment at work which is configured in Hybrid with Office365. Recently we had to change our SSL certificate that was being used for both TLS for the hybrid connection and also for our client facing DNS names. Due to changes with our 3rd party SSL certificate provider, this was a new SSL certificate… Read More »

Matt

VMWare SRM Duplicate initiator ‘iqn.1998-01.com.vmware:Server1-280206e1’ found in SRA’s ‘discoverDevices’ response.

When setting up VMWare SRM 6.1 with array based replication, I was seeing an error after adding the array managers into SRM. The error was Duplicate initiator ‘iqn.1998-01.com.vmware:Server1-280206e1’ found in SRA’s ‘discoverDevices’ response. In the vmware-dr-xxx.log file found in C:\ProgramData\VMware\VMware vCenter Site Recovery Manager\Logs there was a tiny bit more info: 2016-01-13T09:39:10.757+11:00 [03508 info ‘DrTask’ opID=5cacf7dd] Task ‘dr.storage.ReplicatedArrayPair.discoverDevices112’ failed… Read More »

Matt