ESX And RHEL-OSP (Just Say No!!)

Hi folks,

It’s been a really long time since I’ve posted. So long in fact that I started wondering if I was ever going to get back to it. But here we are and I’m happy say that I just renewed the site and domain name. Better yet, I’m back in a position where I can actually post things. So why am I railing against ESX in my first post back? Is it because I’m anti-VMware or because I’m a Red Hat “fanboy”?  Continue reading

Strategy for Utilizing Scale Out Storage for Cloud & Virtualization Platforms

Hi folks,

I’m finishing up my week at Red Hat Summit, sitting in a coffee shop in downtown San Francisco. I spent the week in customer meetings, pulling booth duty, showing demos, and presenting a handful of sessions.. And here I am with my laptop, and my coffee, writing about my laptop and coffee.. I’ve officially become a walking (sitting?) cliché.

Anyway, as the title suggests this time, I want to cover a great strategy for taking advantage of scale-out storage for virtualization and/or cloud. It’s certainly not the only way, but it works very well. Don’t let the NetApp visuals scare you away – some of what I’m sharing will apply regardless of the scale-out platform you’re utilizing. I’ll point out the things that are likely unique to NetApp. Continue reading

Live Migration of Storage and Storage Connections for KVM & OpenStack

In this most current post, I wanted to cover 2 of the core features of NetApp Clustered Data ONTAP and tie it specifically to how it really helps KVM (and OpenStack) scale. While this is meant to be a tech discussion, not a sales pitch, I can’t help but point out that this article shows you some things you can do with NetApp that you can’t do with any other storage, be it “enterprise” or “commodity”. Continue reading

Extending SCSI Timeouts in KVM Guests

Hi folks, today’s post will cover something that came up in the last few days at work. Someone was concerned about any lengthy delay affecting the health of his VM’s virtual disk and therefore the VM. We’ve all seen the aftermath – either the VM falls into a “paused” state, or the disk goes into a read-only state. So, how do you extend the timeout value in KVM for SCSI disks? Continue reading