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add datadir usage helper #820

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add datadir usage helper #820

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35 changes: 35 additions & 0 deletions reth/check_reth_datadir.sh
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Original file line number Diff line number Diff line change
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#!/usr/bin/env bash
set -euo pipefail

# Small helper to inspect disk usage of a Base Reth data directory.
#
# This can be used before upgrades or when planning storage for a new node.
#
# Usage:
# BASE_RETH_DATADIR=/data/reth ./reth/check_reth_datadir.sh

DATADIR="${BASE_RETH_DATADIR:-/data/reth}"

if [ ! -d "${DATADIR}" ]; then
echo "[reth] Data directory does not exist:"
echo " ${DATADIR}"
echo
echo "Set BASE_RETH_DATADIR to the correct path before running this script."
exit 1
fi

echo "== Base Reth datadir disk usage =="
echo "Path: ${DATADIR}"
echo

if command -v du >/dev/null 2>&1; then
du -sh "${DATADIR}"
echo
echo "Top-level subdirectories:"
du -sh "${DATADIR}"/* 2>/dev/null | sort -h
else
echo "The 'du' command is not available on this system."
fi

echo
echo "Tip: keep this directory on a fast local NVMe SSD for best performance."