In terms of price/performance, enterprise NVME SSDs are the best choice for in-VMware host caching media. The Samsung PM1735 (in PCIe form factor) and the Micron 9400 Max (2.5″ U.x form factor) NVME SSDs are my favorites. If you don’t have a spare U.x NVME slot or a conventional PCIe…
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…
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…
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…