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…
NVME Flash
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…
Columbia Memorial Hospital (CMH) is a hospital on the Columbia river in NW Oregon. This project was a combination of Virtunet’s professional services to virtualize CMH’s CPSI EMR system and deploying Virtunet’s VirtuCache software to improve the storage performance of CMH’s VMware infrastructure. Needing a Hardware Refresh CMH was running…
February 18, 2022: United Arab Emirates. Virtunet Systems develops VirtuCache software. VirtuCache improves the storage performance of VMware VMs by caching all VM data (read and write operations) to in-host SSD or RAM. We deployed VirtuCache software at the Al Futtaim Group to improve the storage performance of their Dell…
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…
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…
The specific NVME SSDs I recommend are the Samsung PM1735, for a conventional PCIe slot in the VMware host, and the Intel P4610 for a 15mm U.2 slot in the host. NVME SSDs are by far the best choice for host side caching in VMware. They are the same price…
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…