Matthias Seitz mattsse

Overview

Syncing an Ethereum node is largely reliant on latency of the storage. Budget SSDs will struggle to an extent, and some won't be able to sync at all. IOPS can roughly be used as a proxy of / predictor for latency. Measuring latency directly is arguably better.

This document aims to snapshot some known good and known bad models.

The drive lists are ordered by interface and then by capacity and alphabetically by vendor name, not by preference. The lists are not exhaustive at all. @mwpastore linked a filterable spreadsheet (legacy sheet) in comments that has a far greater variety of drives and their characteristics. Filter it by DRAM yes, NAND Type TLC, Form Factor M.2, and desired capacity.

For size, 4TB is a conservative choice which also supports a Fusaka "supernode". The

	// SPDX-License-Identifier: AGPL-3.0-or-later

	// The ABI encoder is necessary, but older Solidity versions should work
	pragma solidity ^0.7.0;
	pragma experimental ABIEncoderV2;

	// These definitions are taken from across multiple dydx contracts, and are
	// limited to just the bare minimum necessary to make flash loans work.
	library Types {
	enum AssetDenomination { Wei, Par }

	#!/usr/bin/env bash

	# Installs ffmpeg from source (HEAD) with libaom and libx265, as well as a few
	# other common libraries
	# binary will be at ~/bin/ffmpeg

	sudo apt update && sudo apt upgrade -y

	mkdir -p ~/ffmpeg_sources ~/bin
	export PATH="$HOME/bin:$PATH"

	# Redis Cheatsheet
	# All the commands you need to know


	redis-server /path/redis.conf # start redis with the related configuration file
	redis-cli # opens a redis prompt


	# Strings.

	CREATE TABLE `user` (
	`twitter_id` int(10) unsigned NOT NULL,
	`name` varchar(140) NOT NULL,
	`screen_name` varchar(30) NOT NULL,
	`location` varchar(180) default NULL,
	`description` varchar(300) default NULL,
	`profile_image_url` varchar(400) NOT NULL,
	`url` varchar(400) default NULL,
	`protected` varchar(5) default NULL,
	`followers_count` int(10) unsigned NOT NULL,