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…
Host RAM
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…
London, UK. July 20, 2024. AXA is a large multinational insurance company. AXA’s IT department in London deployed VirtuCache to improve the performance of their newly deployed Instant Clone based Horizon VDI deployment. They use various Netapp All Flash Arrays as primary storage. They were specifically looking to eliminate VDI…
If your SQL Server runs in a VMware VM and it has performance issues, the root cause of which is slow storage, then our host side caching software for VMware, called VirtuCache, will be able to fix this problem. This post explains how VirtuCache does this by explaining the read…
If your Veeam backups take a long time to complete or if they fail entirely; VMs freeze during backups; you see disk consolidation errors in vcenter; or if you simply want to speed up your backups, then our VirtuCache software is relevant. VirtuCache Configuration to Speed Up Backup Times in…
If performance issues in SQL Server are caused by slow storage1 in VMware, then VirtuCache software is the quickest and simplest way to fix this issue. You install VirtuCache software in VMware vSphere host. It then automatically caches all reads and writes from VMs to any SSD or RAM in…
Typically, you would want to improve both read and write latency in VMware. But if your VM write latency is already quite low and it is only your read latency that is high, then it is understandable that you would want to improve only disk read latency in VMware. Improving…
If you have high disk IO write latency in VMware at the VM, Datastore, or Device level, then you could fix this issue in either of three ways – tinker around the edges in VMware, get a fast storage array and network, or use host side cache.