Re: Bitcoin hits 500 GB size hard disk data

Did you actually create bootstrap.dat file (see https://bitcoin.stackexchange.com/q/10381) or just compress Bitcoin Core directory?

I didn't know there's a procedure for it, I just compressed blocks and chainstate.

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7z with LZMA2 algorithm could do better job, but i expect it'll be extremely slow.

Even if it saves a few GB, that's only a few percent anyway.