Date: Fri, 4 Dec 2020 23:43:15 +0000 From: tech-lists <tech-lists@zyxst.net> To: freebsd-questions@freebsd.org Subject: effect of differing spindle speeds on prospective zfs vdevs Message-ID: <X8rJkzAqgS%2B95K7F@rpi4.local>
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--cyv8gZElhTMyS1XB Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, Normally when making an array, I'd like to use all disks all same speed,=20 interface, make and model but from different batches. In this case, I've no= =20 choice, so we have multiple 1TB disks some 7.2k some 5.4k. I've not mixed them like this before. What effect would this have on the final array? Slower than if all one or t= he other? No effect? I'm expecting the fastest access will be that of the slowest vde= v. Similarly some disks block size is 512b logical/512b physical, others are= =20 512b logical/4096 physical, still others are 4096/4096. Any effect of mixing hardware? I understand sfs sets its own blocksize. thanks,=20 --=20 J. --cyv8gZElhTMyS1XB Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE8n3tWhxW11Ccvv9/s8o7QhFzNAUFAl/KyYoACgkQs8o7QhFz NAXhtw/9HRKodKuPnwODs1Yfqi19GjfSkktJrqL1SHsKVS106JNXae4lWmnodULk xCsNaY+CP8MhzBbrwD5ibSSja4TTN23E9ej0p+bXlcnOx1c906FZuS7Iy478GPKL IMLmw5eLxRRPQKxdEE2Lc9yvDLQHZfdtYn9fhHN5bp+bWkZ9Zt37MpBVOofd8lo4 j2UgCAwu3ktAgFGcx+ZKxAG0dVQuZ5nozI0jETabm6i/nkjt1CSWq1LlOIyalkqe jdohtBdaccW3lD76/AgP2BmQn6IWdv3rT3gAPsWizikTXAd3WzO9SM8bOSFvsyCK wLJ8EPkecPXOTwVCLGd7ubywzfTJvNKIM8GifTq7Ns4GFkR3uyotHTItea0QIMy5 hBsXdj5ZlHvb/CJ/5jCt3H/15q8qcA00tuF0t+PmVodFZEMBWa98D45yVt2lexmi oXkO3MyEFz8YQVj8qkjx6PdUBPO43w7j6PEVhumSgCXUECW6TWSWhmmyavdT8vbU xv4lKRt2iQprNDoGkPem13gjIcNy6Xkr8To8ENdoVDwjDDBmVx4Wbisf27waQwv3 dGOwV5Plp1FQhprOmJ/YGFEcrf7uhg8lk3l25Nx0dR1234WsKiIPxON8+ILO70/e OD5mYaGcZJ6KKT2w8Ws76kTaIlGTpMC5Wy44ivcpPhFFd+SkNXA= =zt4Y -----END PGP SIGNATURE----- --cyv8gZElhTMyS1XB--
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