All about RDM – Raw Device Mappings
What is an RDM or Raw Device Mapping? An RDM, or Raw Device Mapping, is a mechanism for giving a virtual machine direct access to a LUN. This LUN can…
What is an RDM or Raw Device Mapping? An RDM, or Raw Device Mapping, is a mechanism for giving a virtual machine direct access to a LUN. This LUN can…
When you attempt to mount a device that contains a VMFS datastore copy/storage snapshot, you are given the option to either mount the datastore using the existing signature or you…
VMware recently released a new tool for download designed to provide log management and analysis for vSphere environments. It’s called vCenter Log Insight. Currently in beta, it offers a platform…
Prepare storage for maintenance (mounting/un-mounting VMFS Datastores) When you un-mount a VMFS datastore, it remains intact but it can no longer be seen from the hosts on which you have…
vCenter Storage Filters are enabled by default within Virtual Center. They give a layer of protection while performing VMFS datastore operations, such as when creating new vmfs datastores. Storage filters…
What is NPIV ? According to Wikipedia: “N_Port ID Virtualization or NPIV is a Fibre Channel facility allowing multiple N_Port IDs to share a single physical N_Port. This allows multiple…
vSphere DirectPath I/O (DPIO) is a vSphere feature that takes advantage of VT enabled processors installed in ESXi hosts in order to improve perfomance for virtual machines. A processor feature…
I recently upgraded a test environment to vSphere 5.1 and came across and issue with single sign on. The upgrade to 5.1 went fine, it was only when I rebooted…
I had a discussion about this recently – it’s not something I’ve looked at for a while, so thought it worth a post here. When you are configuring a virtual…
I’ve recently gone through an exercise to configure the scratch partition on a number of boot from san hosts, which got me thinking about partition layout in general on ESXi…
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