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Can I use two different drives?
(lemmy.world)
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this post was submitted on 30 Nov 2023
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Quite the opposite. Use drives from as many different manufacturers as you can, especially when buying them at the same time. You want to avoid similar lifecycles and similar potential fabrication defects as much as possible, because those things increase the likelihood that they will fall close to each other - particularly with the stress of rebuilding the first one that failed.
To the best of my knowledge, this "drives from the same batch fail at around the same time" folk wisdom has never been demonstrated in statistical studies. But, I mean, mixing drive models is certainly not going to do any harm.
It may, performance-wise, but usually not enough to matter for a small self-hosting servers.
I wouldn't mix 5400 rpm drives with 7200 rpm drives, but if the rpm & sizes are the same, there won't be any measurable performance loss.