values and understand how they work with a particular drive) it is hard to say anything for 100% sure. Like I'm used to do I will start a surface scan before I will fill it with data.īTW what would you guys advise to check / test basically before starting to use a new (?) drive? Simple surface read scan or filling it with zeros or more?įirst of all, I must tell that the list of attributes is not complete (not from Hard Disk Sentinel), so I'm not sure if all values reported correctly.Īlso without knowing the actual hard disk manufacturer, model and firmware version (yes, it may be also important to properly identify the S.M.A.R.T. Not a big problem at all I guess but still a bit unpleasant, given the fact that the manufacturing date is Jan 2014 and I just received it today. In any case this HDD is not totally new, since it has been power cycled at least 2 times before I connected it. How can the drive in this example above has been power cycled 3 times and the head unloaded only 1 time?
HD Sentinel: "Count of load/unload cycles" Wikipedia: "Count of load/unload cycles into head landing zone position." And in this SMART example above clearly the the drive has been powered up/down 3 times but power off retract count is only 1.
Heads can be unloaded without actually powering off."īoth these information are logically not fitting together. Wikipedia: "Count of times the heads are loaded off the media. Goggling around I found many quite contradictory explanations about these 2 latter attributes: Now what about this 'Power Off Retract Count' (SMART attribute #192) and the 'Load Cycle Count' (SMART attribute # 193) of both being only 1? I understand the spindle has started to rotate 3 times (SMART attribute #4) which is in line with the power cycle count of 3 (SMART attribute #12).
I'm a bit puzzled about the interpretation of these values.
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