Posts Tagged VSAN
I’m not big on “end of year” posts or predictions and lacking any other ideas, thought I’d write down some random thoughts about technology going through my head as this year draws to an end.
All Flash Array Dominance
I’m not buying the hype surrounding all flash array’s (AFA). Certainly there are legitimate use cases and they’ll be deployed more in the near future than they have in the past but the coming dominance of all flash array’s, I think, has been greatly exaggerated. It’s clear that the main problem these array’s are trying to solve is the extreme performance demands of some applications and I just think there are much better ways to solve this problem (e.g. local disk, convergence, local flash, RAM caching, etc) in most scenarios than purchasing disparate islands of SAN. And many of the things that make an AFA so “cool” (e.g. in-line dedupe, compression, no RAID, etc.) would be even cooler if the technology could be incorporated into a hybrid array. The AFA craze feels very much like the VDI craze to me, lots of hype about how “cool” the technology is but in reality a niche use case. Ironically, VDI is the main AFA use case.
The Emergence of Convergence
This year has seen a real spike in interest and deployment of converged storage/compute software and hardware and I’m extremely excited for this technology going into 2014. With VMware VSAN being GA in 2014, I expect that interest and deployment to rise to even greater heights. VSAN has some distinct strategic advantages over other converged models that should really make the competition for this space interesting. Name recognition alone is getting them a ton of interest. Being integrated with ESXi gives them an existing install base that already dominates the data center. In addition, it’s sheer simplicity and availability make it easy for anyone to try out. Pricing still hasn’t been announced so that will be the big thing to watch for in 2014 with this offering, that and any new enhancements that come with general availability. In addition to VSAN, EMC’s ScaleIO is another more ‘software-based’ rather than ‘appliance-based’ solution that is already GA that I’m looking forward to seeing more of in 2014. Along with VMware and EMC, Nutanix, Simplivity, Dell, HP, VCE, et al. all have varying “converged” solutions as well so this isn’t going away any time soon. With this new wave of convergence products and interest, expect all kinds of new tech buzzwords to develop! I fully expect and predict “Software Defined Convergence” will become mainstream by the end of the year!
Random convergence links:
Duncan Epping VSAN article collection – http://www.yellow-bricks.com/virtual-san/
Scott Lowe – http://wikibon.org/wiki/v/VMware_VSAN_vs_the_Simplicity_of_Hyperconvergence
Cormac Hogan looks at ScaleIO – http://cormachogan.com/2013/12/05/a-closer-look-at-emc-scaleio/
Good look at VSAN and All-Flash Array performance – http://blogs.vmware.com/performance/2013/11/vdi-benchmarking-using-view-planner-on-vmware-virtual-san-part-3.html
Chris Whal musing over VSAN architecture – http://wahlnetwork.com/2013/10/31/muse-vmwares-virtual-san-architecture/?utm_source=buffer&utm_medium=twitter&utm_campaign=Buffer&utm_content=buffer59ec6
The Fall of XenServer
As any reader of this blog knows, I used to be a huge proponent of XenServer. However, things have really gone downhill after 5.6 in terms of product reliability. So much so that I really have a hard time recommending it at all anymore. ESXi was always at the top of my list but XenServer remained a solid #2. Now it’s a distant 3rd in my mind behind Hyper-V. I’ll grant that there are many environments successfully and reliably running XenServer, I have built quite a few myself, but far too many suffer from bluescreen server crashes and general unreliability to be acceptable in many enterprises. The product has even had to be pulled from the site to prevent people from downloading it while bugs were fixed. I’ve never seen so many others express like sentiments about this product as I have seen this past year.
Random CTP frustration with XenServer:
Random stuff I’m reading
Colin Lynch has always had a great UCS blog and his two latest posts are great examples. Best UCS blog out there, in my opinion:
“UCS Manager 2.2 (El Capitan) Released”
“Under the Cisco UCS Kimono”
I definitely agree with Andre here! Too many customers don’t take advantage of CBRC and it’s so easy to enable:
“Here is why your Horizon View deployment is not performing to it’s max!”
Great collection of links and information on using HPs Moonshot ConvergedSystem 100 with XenDesktop by Dane Young:
“Citrix XenDesktop 7.1 HDX 3D Pro on HP’s Moonshot ConvergedSystem 100 for Hosted Desktop Infrastructure (HDI)”
In the end, this post ends up being an “end of year” post with a few predictions. Alas, at least I got the “random” part right…