There are some applications, typically desktop and SMB CAD/CAM, Manufacturing, ERP software that require large amounts of IOs per second (greater than 10,000) at small queue depth (less than 8). For a primer on how Queue Depths affect Latency and IOPS, review this post , which defines various types of…
Bappa Sinha
Caching is used to accelerate storage performance on VMWare ESXi hosts. Several different approaches to perform caching on VMware ESXi were commercially available. Over the years, VirtuCache has emerged as the most preferred caching solution for VMware deployments. VirtuCache caches all VM reads and writes to in-host cache, and it…
“VDI is slow” is usually one of the most common complaints in VMWare deployments. There are many root causes for the perceived poor performance of VDI. Administrators often waste precious time chasing the wrong problems. This article lists the usual suspects so that they can quickly address end-user complaints. Long…
VM snapshot is a very commonly used feature in the VMware vSphere environment. A VM snapshot preserves the state and data of a VM at a particular point in time. This includes the VM powered state, along with all the data including disks, memory and virtual devices. This makes the…
Beefing up Buffer Cache size in Oracle Database alone may not solve all your slow database issues. If your Oracle Database runs in a VMware VM and it has performance issues due to heavy insert and/or update load, the root cause of which is slow storage, then our host side…
VDI deployments are plagued with boot storm problems as they scale up. Boot storms are caused when many VDI users simultaneously boot up their virtual desktops, say first thing in the morning when they come to work. When a large number of VDI VMs are simultaneously powered on and their…