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Discrepancy between Data Writes / Parity Writes


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I'm going to chalk this up to a lack of understanding of what is happening under the hood, but I was hoping someone could explain the discrepancy between the number of writes to a data drive and parity drive. I've had my server for the last two years and have had no real issues and am fairly comfortable with unraid.

 

Model / Serial No. Temperature Size Free Reads Writes Errors

parity SAMSUNG_HD204UI_S2HFJ1CZ900365 27°C 1,953,514,552 - 16,576 17,104

disk9 SAMSUNG_HD204UI_S2HFJ1CZ900367 26°C 1,953,514,552 1,258,149,032 32,649 32,843

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Added info about the setup:

 

Model / Serial No.

parity SAMSUNG_HD204UI_S2HFJ1CZ900365

disk1 WDC_WD15EADS-00P_WD-WMAVU0374634

disk2 WDC_WD15EARS-00Z_WD-WMAVU3045122

disk3 WDC_WD15EARS-00Z_WD-WMAVU1303481

disk4 ST31000340AS_9QJ1LNL1

disk5 ST31000340AS_9QJ1LR5B

disk6 WDC_WD15EARS-00Z_WD-WMAVU3491090

disk7 WDC_WD15EARS-00S_WD-WCAVY2738115

disk8 ST31000528AS_6VP4BA4E

disk9 SAMSUNG_HD204UI_S2HFJ1CZ900367

disk10 WDC_WD15EADS-00P_WD-WMAVU1016612

disk11 SAMSUNG_HD204UI_S2HFJ1CZ900257

cache Hitachi_HTS5432080802FB0E00LKC4TJPB

 

I believe a two of the earlier WD Greens have the jumper and not pre-cleared using MBR-4k Aligned.

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