Replace Drive With IOStat Error "S:0 H:5 T:1" ?

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Jan 7, 2013

I have noticed for the past month that my fileserver has been slightly slower then normal. Sometimes certain full blu-ray ISO's even skip here and there when streaming. Last time this happen was when a drive started going bad, however that drive had tons of errors and failed smart tests.

This particular drive has the following IOStat errors: S:0 H:5 T:1 However, smartinfo claims the drive is fine. If I restart the server, everything appears fine but then within a week or two the errors return slowly.

Is this signs of a hard drive going bad? Also, what exactly does S H T stand for?

Thank You!