June 2, 201214 yr Smart test: http://pastebin.com/e8NXzQzE syslog: http://pastebin.com/QEKageQD Unraid 4.7 The first time the drive went red, I ran a smart report and since it looked OK to me, i followed the procedure to rebuild the contents onto the drive. It worked fine for 3 days. I woke up this morning and found my server disabled the drive a second time. Please view my smart report and syslog and offer any advice. I don't really know how to interpret the smart results which is why I ask for help. I checked all cabling both times. Here's another interesting fact: this all happened after I replaced another failed drive last week. I only mention it because it seems like a strange coincidence for two drives to fail so close to each other. Do I go ahead and replace this disk (/dev/sdd) or should I investigate other options first? Thank you.
June 3, 201214 yr That drive appears to have 200 re-allocated sectors, and 200 more pending. Time for an RMA if it's still under warranty.
June 3, 201214 yr Author thank you. that's approximately a 2 year lifespan for a WD20EARS under heavy use, for anyone else wondering. drive is being replaced right now.
June 3, 201214 yr Uhm no, that drive has -0- reallocated sectors. For field 5, reallocated_sector_ct you need to look at the RAW field. The other fields are normalized (200) and are nowhere near the pre-fail threshold of 140. The same for fields 196, 197, and 198. They are no where near failing and they all have real values of -0-. ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
June 3, 201214 yr agreed. It still could be a defective drive, as two "writes" to it failed in past weeks to cause the drive to be disabled... But... it could as easily be a disk controller, a cable (either power OR SATA), a drive tray, or a power supply that is marginal. It could even be a different disk drive that locks up the controller, preventing the other disks using it to work. There is nothing in the smart report showing anything indicating the disk is failing.
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