Category Archives: Performance

Software Defined Speed — A Look at PernixData FVP

PernixData FVP is a solution I’ve worked with in one environment for perhaps the past 6 months or so. I’ve been meaning to write about it (more than just tweets anyway) for some time, but I’m first now getting around

vCenter Operations Foundation Available to vSphere Owners

As a part of the release of vCenter Operations Manager 5.6 (a.k.a. vCOPS) a new Foundation edition has been made available to all vSphere owners.  This is a great opportunity to become familiar with the capabilities of vCOPS to monitor

Performance Issues with Networking on ESXi and UCS B200 / 6100

I ran into an environment which had a series of issues with the virtual infrastructure and I thought I’d share the result in the event someone else found it helpful. This was an environment running UCS B200 servers and UCS

The Storage Hypervisor Part 2 — Flash Pools

In Part 1 of this series we talked about how ONTAP could be seen as a storage hypervisor and how the benefits of this could mirror the benefits of a compute hypervisor like VMware vSphere.   The key ingredient is a

Virtual Machine Considerations For NetApp Storage

In our environment we’ve done something which at first glance might seem a bit unconventional to many.  We’ve consolidated all OS-based disks (VMDKs) on a dedicated set of datastores, and have done the same with application drives, page files and even

SQL 2012 (Denali) Enables Exciting New HA Scenarios

Up until now there’s been several ways to try to achieve high availability with SQL Server but all present significant complications. There’s SQL clustering, but this is expensive and still only leaves us with one copy of the database

Building Blocks of SAN 2.0 — Flash, Thunder & Lightning

EMC Adds To Their Flash Storage Solutions with “Thunder” and “Lightning” This week EMC announced two new flash based storage products, appropriately codenamed Lightning and Thunder.  There’s a recorded webcast here, and also excellent posts by Chuck Hollis (1, 2,

Free UBERAlign Tool for Identifying and Correcting VM Disk Alignment Issues

One of the most popular posts on this blog has been this post on disk alignment with almost 6,500 views.  In that post, the disk alignment problem is described and some remedies are discussed.  I wanted everyone to be aware

Virtualization Is Not The Problem (Part 2)

I was reading Jase McCarty’s post about his experiences with virtualiztion being wrongfully attributed as the problem and I wanted to expand on this and include my own experiences. The bottom line is that when a new layer has been

Exchange Server 2010 On a vSphere 5 Host Supporting 16K Heavy Users? No Problem!

I’ve been a fan of the VROOM! blog for some time as often time I keep hearing “you can’t do that with a virtual machine” and I turn around and say “someone already did — look!”.  So now that both