May 25, 20251 yr After power outage my server autostarted and completed full parity check with 34 error correction been made.My anxiety made me think "hmm, full parity check has finished several minutes ago, corrections made, so right now there should be no more parity errors. Lets ensure this - start another parity scan right now" - and I started another full parity scan with error correction.This second scan made 1034 corrections.That`s odd, I thought, and started third scan.Right now 30% of the third scan has been done and 1116 correction has been already made.In my thoughts HDDs (including malfunctioning ones) can complete i/o request by read/write correct actual data from its disks, or not complete i/o request without serving correct data. There is now intermediate variant when HDD completes read i/o request and serves errorneous data within it.I feel stupid because of lacking of knowledge.So, where are recurring parity errors coming from?Please, direct me to the proper way.
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