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reply to vue666

Re: Ubuntu Disk Utility and SMART info...

Replace the disk, I replaced one under warranty RMA with as little as 20. 452 reallocated sectors is a pretty good indicator the disk may be failing. Use smartctl -a /dev/path/to/your/hdd to get the serial number and other information.

Go here to check your warranty status, I've done warranty swaps and the process was seamless. Some of the older WD drives even have a *lifetime* warranty that is still honored -- »westerndigital.secure.force.com/···?lang=en

When I RMA'd my drive I simply noted "High number of Reallocated_Sector_Ct drive is remapping sectors and is failing/failed"

From »en.wikipedia.org/wiki/S.M.A.R.T.

Count of reallocated sectors. When the hard drive finds a read/write/verification error, it marks that sector as "reallocated" and transfers data to a special reserved area (spare area). This process is also known as remapping, and reallocated sectors are called "remaps". The raw value normally represents a count of the bad sectors that have been found and remapped. Thus, the higher the attribute value, the more sectors the drive has had to reallocate. This allows a drive with bad sectors to continue operation; however, a drive which has had any reallocations at all is significantly more likely to fail in the near future.[2] While primarily used as a metric of the life expectancy of the drive, this number also affects performance. As the count of reallocated sectors increases, the read/write speed tends to become worse because the drive head is forced to seek to the reserved area whenever a remap is accessed. A workaround which will preserve drive speed at the expense of capacity is to create a disk partition over the region which contains remaps and instruct the operating system to not use that partition.