April 5, 20206 yr Version: 6.7.2 Hi I'm curious about this element of the parity check and cannot see any obvious answers in the manual or here. Parity = 4tb Array 18 HDD Max HDD size excluding parity = 2TB Elapsed time: 21 hours, 49 minutes Current position: 3.45 TB (68.9 %) Estimated speed: 56.2 MB/sec Estimated finish: 7 hours, 41 minutes Sync errors corrected:0 All my hdd's except the parity spun down 15 hours into the parity check, the only hdd running is the parity. What is being checked? Thank you Edited April 5, 20206 yr by Userpaul solved
April 5, 20206 yr Community Expert 38 minutes ago, Userpaul said: What is being checked? The parity disk, it still needs to be valid if in the future you add new larger disks.
April 5, 20206 yr Community Expert The parity check always runs to the full size of the parity disk regardless of the size of the data drives. This is why the time for a parity check is basically dependent on the size of the parity drive - not of the individual data drives in the array. As was mentioned this is to ensure that all of the parity drive beyond the size of the largest data drive contains zeroes so that you can later add larger data drives and keep parity valid
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