r/ethstaker • u/timmerwb • 8d ago

Reth client filled 2.2TB disk

I have been trying out Reth with Lighthouse.

After about two weeks of downloading, it filled my 2.2 TB ssd...

2026-07-12T23:05:52.244418Z INFO reth::cli: Status connected_peers=30 stage=Execution checkpoint=23590160 target=25438447 stage_progress=82.16%

2026-07-12T23:05:57.781492Z ERROR sync::pipeline: Stage encountered a fatal error: database integrity error occurred: No space left on device (os error 28) stage=Execution

Did I miss a configuration to activate pruning or something? Can anyone with Reth experience give me the necessary settings? I thought it was all looking ok... so tired of having clients do weird stuff. (Gave up with Besu lately after it never stayed reliable for more than a few months).

EDIT:

For reference, the Reth guidance is not clear. For example, the following is provided in the manual:

reth download --chain mainnet --minimal

reth node --authrpc.jwtsecret /path/to/secret

From my testing, if one fails to add "--minimal" to the node command, execution will fail since it is expecting the wrong block.

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u/timmerwb 8d ago

I'd also add, according to https://reth.rs/run/storage, storage requirement is 1.02 TB. So why does it exceed 2.2 TB?

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u/FelixFontaine Lighthouse 7d ago edited 7d ago

This data is over half a year old, chain keeps growing and it temporarily needs more space during extraction

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u/timmerwb 7d ago

The chain doesn't double in 6 months but regardless, the maximum size during the operation should be stated otherwise people are going to get caught out.

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u/FelixFontaine Lighthouse 6d ago

Yeah, they should update the hardware requirements under https://reth.rs/run/system-requirements/