Cockroach Labs Estate economics What idle nodes, provisioned bytes and peak-sized bills cost, worked out from your estate.
  1. Nodes 3 baseline
  2. Avg CPU utilization 15.0% idle hardware
  3. Storage provisioned 15.0 TB plus 2.5 TB in S3
  4. Est. monthly saving 17% $1,000/m becomes $830/m

Step 8 of 8 - Summary

Everything you changed, added up

Seven pages of controls come down to one number: what this estate would pay against what it pays today. Here's where that number comes from, and what you haven't switched on yet.

Virtualization One Private Host Cluster
Storage Plenum Tier 80% of data as cold

Estimated saving against your estate today

17.2%

All of it from storage, leaving this estate at 82.8% of what it pays today. The switches still off are worth 18.7% more from here.

Storage0%25%50%75%100%Your estate todayseparate clusters, block storage100.0%Your estate tomorrowwith the switches you've turned on82.8%17.2% savedYour estate today against your estate tomorrowAgainst a baseline of separate clusters on block storage, this estate is set up to pay 82.8% of that bill: a saving of 17.2%, of which 0.0 points come from virtualization and 17.2 points from storage. Throwing the switches still off would take off a further 18.7%, for 64.1% of the baseline in total.
From virtualization
0.0%
From storage
17.2%
Still on the table
18.7%

15.0 TB becomes 10.0 TB. That one movement is the arithmetic. The rest of the site is why it's safe to make.

  • Plenum - on, worth 17.2%; 10.0 TB reaches the meter instead of 15.0 TB, and the nodes stop renting block storage to hold it.
  • One Private Host Cluster - off, worth 0.0% more taken in this order; 3 nodes become 3 for the same work, at 15.0% CPU instead of 15.0%.
  • 80% of the data tiered cold - off, worth 18.7% more taken in this order; cold data keeps 1 copy in object storage and none on disk: 4.0 TB billed instead of 10.0 TB.
Every switch, priced in order, as a percentage of your estate's bill today
StepWorkingResult
Your estate todayseparate clusters on block storage: the baseline every percentage on this site is measured against100%
Plenumswitched on; 10.0 TB reaches the meter instead of 15.0 TB, and the nodes stop renting block storage to hold it-17.2%
One Private Host Clusternot switched on; 3 nodes become 3 for the same work, at 15.0% CPU instead of 15.0%0.0%
80% of the data tiered coldnot switched on; cold data keeps 1 copy in object storage and none on disk: 4.0 TB billed instead of 10.0 TB-18.7%
What you're set up forthe switches you've turned on, against the baseline82.8%
Still on the tablethe switches you haven't, priced from where you're standing-18.7%
With everything switched onevery switch on64.1%
How this is added up
  • The baseline is the estate you described on the front page, bought the way it's bought today: 1 separate cluster on block storage. Every percentage on this page and every percentage in the bar at the top of the screen is measured against that one number.
  • These switches aren't independent - the storage layer changes what a node costs, and consolidation changes how many nodes there are to charge for - so a total can only be split along some order. This one starts at the baseline and climbs through the switches you've already thrown before it reaches the ones you haven't. That's what makes the switched-on rows add up to exactly the 17.2% in the bar above. Each remaining row is then priced from the row above it rather than from the baseline, so they add up to the 18.7% that's left rather than to more than there is: throw one on its own and it's worth more than the line here says, because it would be collecting overlap the row above it has already claimed.
  • Nothing on this page prices the rest of the argument. Fewer bad days from a runaway neighbour, a scale-out that finishes in seconds instead of hours, and a node loss that doesn't move data are all worth something, and none of them are worth a percentage this model can defend.
  • The rates behind the arithmetic are derived from a design-doc cost model at 200-node scale, not from list prices and not from final pricing. Illustrative, not measured. The claim is the ratio, whatever the bill turns out to be.

Every figure here follows the estate you described. Change it and this page changes with it - or go back through the pages and read why any one of these switches is safe to throw.