user7506: Does building a Cardano node on testnet takes less storage than mainnet?
If so, what are the approximate storage requirements?

user5926: Yes, the disk storage for testnet is vastly smaller than for mainnet.
On my machine the mainnet disk storage is 76 Gig. I would be a little surprised if testnet even uses 10 Gig.

user29: Yes, the testnet takes less storage. This is what I got when I installed them a month ago:

Testnet: 11 GB


Mainnet: 46 GB

I haven't updated it again, but it's roughly around those number

7506: <p>Does building a Cardano node on testnet takes less storage than mainnet?</p>
<p>If so, what are the approximate storage requirements?</p>
 5926: <p>Yes, the disk storage for <code>testnet</code> is vastly smaller than for <code>mainnet</code>.</p>
<p>On my machine the <code>mainnet</code> disk storage is 76 Gig. I would be a little surprised if <code>testnet</code> even uses 10 Gig.</p>
 29: <p>Yes, the testnet takes less storage. This is what I got when I installed them a month ago:</p>
<blockquote>
<p>Testnet: 11 GB</p>
</blockquote>
<blockquote>
<p>Mainnet: 46 GB</p>
</blockquote>
<p>I haven't updated it again, but it's roughly around those number</p>
