I have synced whole geth into computer in --fast mode. However, it had to be stopped at one point today. Using the already downloaded data, can I pass the download phase and resume from where it is left?

If not, can I use the already downloaded data to speed up the sync?

  • 2
    state is automatically healed if you are using latest geth 1.10.8
    – Nulik
    Commented Aug 25, 2021 at 23:51
  • 1
    yes you can, when you restart it, geth will pick up where it left off Commented Aug 26, 2021 at 0:00

1 Answer 1


As far as I know the current GoEthereum versions support snap sync by default. This is resumeable operation. You do not need to give extra command line parameters like --fast anymore to activate it.

Snap sync

My node synced under 8 hours using the default parameters.

More information about snap sync and its speed.

More information about runnning an Ethereum node yourself.

  • how do you create a "snap sync"?
    – chovy
    Commented Aug 26, 2021 at 11:32

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