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Virtualisation

Enterprise Computing: VPLEX – Write Back or Write Through?

A little discussion on Twitter between myself, @BasRaayman, @UltraSub and @esignoretti got me thinking about the evolution of VPLEX and the whole caching thing.  It’s something I mentioned on one of my previous VPLEX posts and it could have significant impact on designing and implementing VPLEX solutions.  Here’s the conundrum. First of all, be aware that VPLEX is a write-through ... Read More »

Virtualisation: DroboPro – Hyper-V’s Best Friend!

I’ve had my DroboPro for some time now and initially I had mixed results with it.  Although I was aware of the single connection to an iSCSI target restriction, I was slightly disappointed with the lack of vmfs support within the Drobo operating system, especially as the product sells itself on understanding the filesystem format.  My next move has been to test ... Read More »

DroboPro – Hyper-V’s Best Friend!

I’ve had my DroboPro for some time now and initially I had mixed results with it.  Although I was aware of the single connection to an iSCSI target restriction, I was slightly disappointed with the lack of vmfs support within the Drobo operating system, especially as the product sells itself on understanding the filesystem format.  My next move has been to test ... Read More »

Virtualisation: Home Lab Update

I’ve just about got my home lab fully organised; here’s a quick summary of what I have in place. Storage I’ve four main storage devices, DroboPro, Iomega ix4-200D (two) and an EMC CLARiiON CX-700.  This gives me NAS, iSCSI and Fibre Channel connectivity options on any testing I’m performing.  The storage is broken down as follows: DroboPro – 8.4TB of raw storage ... Read More »

Virtualisation: Learning The Hard Way

They say that you learn the most when you make mistakes and things go wrong.  Well, last night I certainly must have learned a lot.  What started as a simple physical re-organisation of my hardware turned into a rebuild of my production VMware ESXi server – finishing at 1am.  Here’s what happened. Failing Disk I started by shutting down and ... Read More »

ESXi: Learning The Hard Way

They say that you learn the most when you make mistakes and things go wrong.  Well, last night I certainly must have learned a lot.  What started as a simple physical re-organisation of my hardware turned into a rebuild of my production VMware ESXi server – finishing at 1am.  Here’s what happened. Failing Disk I started by shutting down and ... Read More »