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Forum Discussion
Help swapping "dead" drive? [Case #15693780]
Hey all, I have an NV+ that is about 2 months old. I fired it up and loaded it with all of our data, backed up all files from PC's etc...it has 4 x 2TB WD Green Caviar drives at this point. All is wel...
So I had another look at the logs just now, and I notice it claims the hdi [drive #4 which reports normal in all interfaces] disk has an "unknown partition table" - this drive is marked in the log as the Parity drive. Does that mean the "unknown" partition table is expected? Just for kicks, I ran the SMART test on this drive from Frontview:
Anything look alarming here? LCC high?
Also tried a zero fill and full erase on my replacement disk before attempting to hot add it again, and I don't think it's an issue with the disks at all. Your talk about compatibility is worrying me. If the device built a RAID filesystem on these disks, how did they get to a place where they are now unrecognizable by the same device? Also, the fact that none of the disks i've tried [3 now counting the original "failed" disk, the other 2 are brand new and the one in there now is a WD20EARS even] show anything but "dead" or "not present" to the NAS.
SMART Information for Disk 4
Model: WDC WD20EADS-00W4B0
Serial: WD-WCAVY6067131
Firmware: 01.00A01
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 10150
Start Stop Count 13
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 1487
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 12
Power-Off Retract Count 11
Load Cycle Count 70418
Temperature Celsius 33
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0
ATA Error Count 0
Anything look alarming here? LCC high?
Also tried a zero fill and full erase on my replacement disk before attempting to hot add it again, and I don't think it's an issue with the disks at all. Your talk about compatibility is worrying me. If the device built a RAID filesystem on these disks, how did they get to a place where they are now unrecognizable by the same device? Also, the fact that none of the disks i've tried [3 now counting the original "failed" disk, the other 2 are brand new and the one in there now is a WD20EARS even] show anything but "dead" or "not present" to the NAS.
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