Category Archive for: ‘VirtuCache’

GUI comparison, PernixData FVP vs Us – VMware Write Back Caching Software.

For the most part both our GUI and workflows are similar. This article compares, with screenshots, steps to install and configure VirtuCache and PernixData FVP. The only differences between us and Pernix stem from the fact that we leverage VMware's own capability in the areas of clustering, license management, and logging, whereas Pernix programmed these features separately within their software. Overall these additional screens add a few clicks and pages in Pernix versus us, but again I...

PernixData’s FVP vs. Virtunet – Both VMware Kernel Write Caching Software

More similar than different Both us and PernixData differentiate from rest of the host side caching vendors in similar ways - that we are kernel mode software; both of us cache writes in addition to reads; have data protection strategies in place to prevent against data loss in case of multiple simultaneous hardware failure; do not require networking or storage to be reconfigured; and do not require agents per VM or VM per host. This article is the first in a series of two articles that...

How to Select SSDs for Host Side Caching for VMware – Type, Model, Size, Source and Raid Level ?

Go with enterprise grade and not consumer grade SSDs. And deploy the SSD behind a good Raid controller (queue depth > 128). Samsung SM863 and Intel S3710 are good choices. The SM863 is better value for money. Also, don't skimp on the Raid controller since you don't want it to choke before the SSD does. Though this article is in the context of using SSDs with VirtuCache (our Host Side Caching software for VMware that improves the performance of any SAN based storage appliance), these...