[Openstack-operators] [Openstack] [openstack][SWIFT] I want to talk about costs !! (against amazon S3)
alawson at aqorn.com
Wed Apr 30 19:40:59 UTC 2014
Maybe this will help you. It's a cost analysis we did for one of our large
clients who were using S3 heavily and considering a move to Swift. We did
the analysis to determine if it was worth the investment and confirm how
the underlying infrastructure (phys/virt) impacted the final cost of
service. It was then easy to compare those numbers against AWS so their
leadership could assess whether the savings were worth the effort. Because
there were definitely savings.
Analysis completed about a month ago. Conclusion? Running Swift on virtual
infrastructure wasn't worth it (too expensive), running even a small Swift
cluster on physical commodity hardware *beat* AWS by $0.029 (assuming AWS
was $0.075 per GB). The margins are slim for both Swift and AWS but saving
2c per GB adds up which means Swift gets more cost advantageous with larger
clusters; according to our calculations. Numbers below assume VMware is
used for virtual infra with its full-cycle service delivery costs baked in.
> *Monthly costs Swift on Virt Swift on Phys AWS **Per GB $0.63 $0.046
> Proxy ct: 6 $5.04 4GB RAM=$0.84
> Storage ct: 15 $7,887.60 2500gb=$525 4GB RAM=$0.84
> Keystone ct: 3 $3.36 8GB RAM=$1.68
> Virt Cost $7,896.00 monthly
> HW Cost $34,500 Cap ~$1500/server
> $575 monthly 5 year EOL
> $575 / 12.5TB usable capacity = cost/GB/month
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On Wed, Apr 30, 2014 at 11:55 AM, Alejandro Comisario <
alejandro.comisario at mercadolibre.com> wrote:
> Lovely Johon, i'll read that but hey ... beilieve me, this in-deep
> analysis that im going through in my company making a production proyect
> crumble just because lack of costs data regarding amazon will be a constant
> while amazon keeps droping prices.
> If you can share those details, that would be : project-saving.
> Thanks so much.
> Alejandro Comisario
> *MercadoLibre Cloud Services*
> Arias 3751, Piso 7 (C1430CRG)
> Ciudad de Buenos Aires - Argentina
> Cel: +549(11) 15-3770-1857
> Tel : +54(11) 4640-8443
> On Wed, Apr 30, 2014 at 2:37 PM, John Dickinson <me at not.mn> wrote:
>> We blogged about this recently at
>> I've asked around the office here at SwiftStack to see if we can put
>> together some more public cost details (specifically in response to you
>> question), so I hope we can share some more info soon.
>> On Apr 30, 2014, at 5:11 AM, Alejandro Comisario <
>> alejandro.comisario at mercadolibre.com> wrote:
>> > Hi guys.
>> > After amazon dropped its prices among other things, on S3 its seems
>> that i need in my compañy to justify/analyze if swift keeps being the most
>> cost convenient solution (we have it in house)
>> > When we decided going with swift one year ago, one of the main
>> constraints was "keeping the data in our datacenter" so we did'nt do the
>> excercice of costs, but today since "seems" that this constraint might be
>> no more i need to go through this excercise (of course i want to stay with
>> > So, im reaching the community to ask experiences of people that went
>> through the same scenario, things to take into account and recent results.
>> > I bumped with a great aticle from Amar Kapadia at:
>> http://www.buildcloudstorage.com/2012/01/can-openstack-swift-hit-amazon-s3-like.htmland since i belive is a great place to start, the calculations an variables
>> might be outdated.
>> > help is more than apreciated!!
>> > best.
>> > alejandrito
>> > _______________________________________________
>> > Mailing list:
>> > Post to : openstack at lists.openstack.org
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