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How CloudVerdict works it out
The rules every comparison follows. They are the same for every provider, every plan, and every subscriber, and a result says where each of them touched it.
- Storage$25,647.39100%
What is priced
Each provider’s object storage classes, in the regions it prices. A total is made of what a bill is made of.
Storage
On what is held in each month, at the provider’s tiered rates where it has them, and at a class’s minimum object size where it sets 1.
Requests
Writes and reads, worked out from the workload. With detailed input, on Premium, your own counts of them, and of lists, copies, and moves between classes.
Retrieval
What a class charges to read data back, and to restore it first.
Data out
What is sent to the internet, band by band.
Replication and transfer
What a class that keeps a copy in a second region charges to send it there. With detailed input, on Premium, transfer between regions that you set up yourself.
Minimum duration
What a class charges for data deleted or replaced before its minimum storage time.
Other charges
What a class charges to watch objects so that it can move them between tiers by itself, and to lock a retention policy. With detailed input, on Premium, an inventory of the objects.
With detailed input, on Premium, a comparison also takes versioning, growth by objects added and deleted, and how long data goes untouched.
How a figure is counted
All in, per TB-month
Every option says what a TB of the data costs to hold for a month once everything is in, and how much of it is storage: its whole total over the period, divided by the data held, month by month, before any copy kept. It is set beside a provider’s advertised price, ranks options as their totals do, and is per GB-month or per PB-month where the data is that size.
Money is exact
Every amount is worked out in decimal arithmetic and kept exact. A figure is rounded only where it is shown, so the charges behind a total add up to it exactly, and a column of rounded figures may differ from it by a few pence.
Requests and objects are whole
A provider bills whole requests, so a count is rounded up and never left as a fraction.
Each month is worked out in turn
From what is stored in it, so growth and deletion are followed month by month over the period you choose.
Prices are held through the whole period
A comparison prices every option from each provider’s published list prices as last read, and holds them through the whole period, so every option is compared on the same footing. A result gives the day it was priced and, for each provider, the day its prices were read.
A result is in 1 currency
Where a provider publishes in another, the result states the exchange rate, its date, and its source.
What is never done to a figure
A missing charge is never shown as zero
Where a provider publishes no rate for a charge that applies, the option is marked Partial, says what is missing and which way its total is wrong, and is left out of the ranking.
A warning never changes the ranking
The ranking is on cost alone. What you must weigh besides cost, such as a recovery time, is shown beside every option it applies to, with its source, and none is hidden.
No provider pays
Not to be included, placed, or ranked. The only money CloudVerdict takes is the subscription.
An estimate is never called a quotation
A result is built from published list prices. On Premium you can add a discount you have agreed with a provider, and the result then shows the list price and yours.
What a result says about itself
Every price names its source
The provider’s own price list, or its own pricing pages where it publishes no list, with its version or publication date where the provider gives 1.
Every result states how old its prices are
For each provider, on the screen and in the PDF.
Every assumption is listed
With the provider page it rests on, such as how many days a month is taken to have.
What was left out is named
Where a provider sells a storage class the comparison does not compare, the result names it and says why.
Ranges, recovery, and leaving
On Premium.
A low to high range
Prices the workload again with your low and your high figures for growth, data read back, and data sent out. It says which figure moves each option most, and gives no probability.
A recovery and an exit
What it would cost to restore a given amount of data, or to move it all out, is a figure of its own beside each option. It is never added to a total or ranked on.
No speed is priced in place of another
Where a provider offers no restore at the speed asked for, the result says so.