If you are experiencing storage performance issues, and if you have greater than 30 Datastores in an ESXi cluster, then this most likely is the cause of your storage performance issues, even if you have a high performing all-flash array and a high speed storage network. First we start with…
VirtuCache
VMware Horizon deployments are often plagued with performance problems. Troubleshooting these problems is not a trivial task because there are many reasons for the poor performance of VMware Horizon deployments: storage issues, network bottlenecks, insufficient resources (CPU, RAM, etc.) and software issues. Effective monitoring is the first step in identifying…
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…
SYNOLOGY: CHEAP AND VMWARE READY Synology storage arrays have a few things going for them, they are one of the most reasonably priced storage arrays on the market that are also certified as ‘VMware Ready’ by VMware. HIGH LATENCIES IN SYNOLOGY WHEN CONNECTED TO VMWARE One issue with these appliances…
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…
For the lowest latency VDI VMs, the VMs should be running from in-host RAM. The combination of two facts – that RAM is the lowest latency media there is, and it is on the same motherboard as the host CPU, makes this storage architecture for VDI higher performing than any other….
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…
One advantage that Hyper-converged infrastructure(HCI) has over SAN infrastructure is that HCI has put high speed storage back in the hosts. This is also true for Host Side Caching software. However, unlike HCI, host side caching retains the flexibility that SAN infrastructure has over HCI, of being able to do…