i need advice on these toshiba hdd... they are actually hitachi HDS723020BLE640 (these drive are when toshiba buy 3.5 hdd plant from hitachi-WD)
before i rarely check their smart until recently i found out one of 2 drives in RAID1(software IntelRST) have Read Error Rate dropped from 100 to 83
other smart status are normal
reallocated sectors count, seek error rate, reallocation event count, currect pending sector count, uncorrectable sector count is clear
basically the SMART status not showing any bad sign beside "Read Error Rate"
i read intel rst can cause Read Error Rate
also i read some article saying that its normal for hitachi drive that dropping abit of Read Error Rate (backblaze article?)
but i have been using this drive for 28000hours (so it around 3years online)... so well i suspect there is wearing parts on it
i need advice regarding this, should i replace the drive soon?
or its normal and plus its in RAID1 so it will be fine for a while ?
thanks in advance