Thread: My Estimate on HD space for CA, NV, & AZ for MSFS 2020

1. Junior Member
Join Date
Oct 2006
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18

My Estimate on HD space for CA, NV, & AZ for MSFS 2020

The southern southwest U.S. is the region I fly in the most, so I thought it would be interesting to try and calculate how much HD space I’d need. Here are the results:

MSFS 2020 = 2 PB = 2,000 TB

197 million miles sq = World land

163,696 miles sq = California
110,567 miles sq = Nevada
113,998 miles sq = Arizona

CA + NV + AZ = 388,261 miles sq = Total
World Land / Total = 507.4
2,000 TB / 507.4 = 3.94 TB

This is totally doable, even on a SSD because I believe this is worst case since Nevada & Arizona are sparsely populated and would take up less HD space. What do you all think?

2. World Land / Total = 507.4
What is the value of world land, (does it include oceans and islands which would be in the database too), and what are the units for 507.4?

Having figured all that out, you're guessing that the 2 PB is the data you need for the whole world, and that it's roughly linear in storage per sq. mi. or whatever figure it is, which may not be the case.

So maybe you have a roughly accurate figure and maybe there are factors that throw you a wild curve, making your calculations useless.

So it's a semi-educated guess (IMHO).

Of course they DO say that you can cache data to fly off-line, so...

3. 2 petabytes is the volume of data they are starting with before processing it with Azure AI. The actual amount of data used in the sim directly will be lower. Though we don't really know how much lower. I can also see areas with mountains, cities and the like taking up more space than farmland in the middle of Saskatchewan.

4. Junior Member
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Oct 2006
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507.4 represents a ratio (1:507.4) of CA, NV, & AZ land compared to the total world. So, 1/507.4 x 2,000 TB is approximately 4 TB. I was mistaken. 197 million sq miles is the entire world, not just the land. As you said, this is a very rough estimate, and the world is not linear which means different locations will not take up the same HD space.
Last edited by simpilot55; 10-10-2019 at 08:06 PM.

5. Yeah, they totally have petabyte hard drives now a days for around tree fiddy on NewEgg....

6. Originally Posted by simpilot55
507.4 represents a ratio (1:507.4) of CA, NV, & AZ land compared to the total world. So, 1/507.4 x 2,000 TB is approximately 4 TB. I was mistaken. 197 million sq miles is the entire world, not just the land. As you said, this is a very rough estimate, and the world is not linear which means different locations will not take up the same HD space.
If it's 4 TB then that's doable. Pretty massive, but still doable. I have over 4 TB of HDD space in my desktop now. I'd have to buy a 4 TB drive just for this Sim.

7. Member
Join Date
Mar 2005
Posts
396
Well I'd say that Samsung had better up their game with bigger SSD's because ain't no way I'm going back to spinning platters.

8. I use two 2TB platters myself but I made sure they were enterprise Hitachis. They are for spill over from my main 256 GB Crucial SSD. I may get a 512 GB SSD latter on.

9. You don't mention what 3rd party add-ons you are talking about. It's actually quite easy. Usually developers will state the size of their addons. For example, our simwestSOCAL is around 40GB. Our simwestARIZONA (not released), will be larger as it will be available in 60cm.

Just add what size is for Arizona, Nevada and whatever and that should give you a good idea what size of HDD space you will need.

10. Originally Posted by Clutch Cargo
You don't mention what 3rd party add-ons you are talking about. It's actually quite easy. Usually developers will state the size of their addons. For example, our simwestSOCAL is around 40GB. Our simwestARIZONA (not released), will be larger as it will be available in 60cm.

Just add what size is for Arizona, Nevada and whatever and that should give you a good idea what size of HDD space you will need.
They're talking about how much space will be needed to cache the enhanced scenery included in the sim, not add-ons. At the moment no one really knows for sure how space the scenery will take.

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