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“Public cloud providers pass Moore’s law hardware savings to you, because the public cloud is a commodity.”
Fact: not really unless you negotiate (a lot) and use long terms contracts.
“Public cloud has far greater utilization rates”
Fact: Absolutely not. Reported rates for Google (that has a scale comparable to AWS) are not far from those reported for private clouds.
Source: NRDC How VMware Virtualization Right-sizes IT Infrastructure to Reduce Power Consumption; VMware, 2008AWS
● “You have 100 physical servers, 6 virtual instances on each, for a total of 600 virtual instances. Fewer would make the scale of running it prohibitively worse.
● Your 100 physical servers will have four switches, two routers and two firewalls. In reality, you probably will have much more, adding to the expense.
● We will ignore your monitoring and other required services for the moment.● You are virtualizing with Xen, (which AWS uses), available for free, as opposed to VMWare,
which has significant licensing costs.● The number of instance system admins (or “sysadmins”) is the same, since you have the
same 600 instances, so we can consider them a wash.● Your AWS costs use on-demand pricing. You could save double digit percentages by paying
for reserved instances.”
3yr Cost AWS: $1,088,6403yr Cost DIY: $2,288,000 (includes personnel for hw management, networking, cabling)
source: http://blog.atomicinc.com/2015/03/03/does-amazon-web-services-pricing-follow-moores-law-2350/
3yr Cost AWS: $1,088,6403yr Cost DIY: $2,288,000 (includes personnel for hw management, networking, cabling)
Equivalent cost by HaaS:
30 MG128 (216$/month) → 3yr cost: $233280 (roughly ⅕ of AWS). Fully serviced, including hardware replacement, networking and management.
● “You have 100 physical servers, 6 virtual instances on each, for a total of 600 virtual instances. Fewer would make the scale of running it prohibitively worse.
● Your 100 physical servers will have four switches, two routers and two firewalls. In reality, you probably will have much more, adding to the expense.
● We will ignore your monitoring and other required services for the moment.● You are virtualizing with Xen, (which AWS uses), available for free, as opposed to VMWare,
which has significant licensing costs.● The number of instance system admins (or “sysadmins”) is the same, since you have the
same 600 instances, so we can consider them a wash.● Your AWS costs use on-demand pricing. You could save double digit percentages by paying
for reserved instances.”
3yr Cost AWS: $1,088,6403yr Cost DIY: $2,288,000 (includes personnel for hw management, networking, cabling)
source: http://blog.atomicinc.com/2015/03/03/does-amazon-web-services-pricing-follow-moores-law-2350/
● Use automated deployment tools the moment you plan to go over 5 servers.● Among the tools:
○ Foreman○ Razor○ JuJu○ Loom○ Cobbler○ Stacki….
● All very good - use the one you like most● OpenNebula is exceptional at automation of the machinery. Sometimes you need
additional automation (but not always)● This can be done by external VMs, that do have a privileged view of what’s inside● Invest a little time in additional “helpers”: DCIM/CMDBs, NAC, Gateway VMs...