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Does my HDD need to be replaced?
Have 2 x 3TB Segate in my ReadyNAS Duo V2
One failed on me last night so have replaced it with a WD Red - the second Seagate is now also showing some early signs - what do you guys think?
SMART Attribute | |
Spin Up Time: | 0 |
Start Stop Count: | 15154 |
Reallocated Sector Count: | 0 |
Power On Hours: | 20561 |
Spin Retry Count: | 0 |
Power Cycle Count: | 75 |
End-to-End Error: | 0 |
Reported Uncorrect: | 172 |
Command Timeout: | 9 |
High Fly Writes: | 1440 |
Airflow Temperature Cel: | 44 |
G-Sense Error Rate: | 0 |
Power-Off Retract Count: | 72 |
Load Cycle Count: | 15154 |
Temperature Celsius: | 44 |
Current Pending Sector: | 24 |
Offline Uncorrectable: | 24 |
UDMA CRC Error Count: | 0 |
ATA Error Count: | 172 (device log contains only the most recent five errors) |
ATA errors might be the drive, but they can come from the NAS, or from adjacent drives that are messing up the SATA interface.
The 24 pending sectors are definitely the drive. That means there are 24 sectors that couldn't be read. If writes had failed, they would have been reallocated. But you can't reallocate on reads, because you don't know what data to write into the newly reallocated sectors.
I'd test the drive with Seatools. Even it if passes, look at the SMART stats when the diag finishes. Acronis Drive Monitor is one freeware tool that will show the SMART stats (though you do need to give them your email address to download it).
My personal threshold is (a) > 50 or (b) counts beginning to rise, with new reports every couple of days. If I kept this drive in service, I'd be watching it very closely, and I'd make sure my backups are current.
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what model of seagate?
it is a worry with reported uncorrected 172 and ata error count
Disk 2
ST3000VX000-1CU166 2794 GB (45 °C / 113 °F, Write-cache On). Status: OKHave any of the counts gone up recently?
Do you have a backup?
ATA errors might be the drive, but they can come from the NAS, or from adjacent drives that are messing up the SATA interface.
The 24 pending sectors are definitely the drive. That means there are 24 sectors that couldn't be read. If writes had failed, they would have been reallocated. But you can't reallocate on reads, because you don't know what data to write into the newly reallocated sectors.
I'd test the drive with Seatools. Even it if passes, look at the SMART stats when the diag finishes. Acronis Drive Monitor is one freeware tool that will show the SMART stats (though you do need to give them your email address to download it).
My personal threshold is (a) > 50 or (b) counts beginning to rise, with new reports every couple of days. If I kept this drive in service, I'd be watching it very closely, and I'd make sure my backups are current.
- Is there any issue running two HDD from different vendors as part Raid (both are 7200rpm drives)?
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