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I have a software RAID 5 with 3 disks.

For a few days, sda has been giving errors, and today the new disk arrived.

I launched mdadm --replace and the process started correctly, but due to read errors on the disk, the operation is taking a very long time (over a week for about 1TB).

Should I be patient, or can I use --remove sda? And force the recovery using parity information instead?

What do you recommend?

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The rebuild had problems all night due to errors, so much so that I was on the verge of stopping it several times. But it seems we have finished copying the damaged part of the disk, and now it is proceeding very well (130 MB/s)

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