Has anybody run Smart utility on osx and checked their load cycle counts for their hard drives? I had 2 failures back in my old mbp - pre unibody and have had no issues with other computers. it could easily have been bad drives, etc - not pointing fingers here, just a comment.
I was doing a little googling on the subject since it came up during a discussion on another forum about NAS. Seems some folks have huge Load cycle counts on their Macbook's with limited run time. Supposedly something in OSX was adjusting to maximize battery life.
Average drives go 300k-600k LCC rated by the manufacturer.
For example,
This current computer has Power on hours of 2474 and LCC of 20,776.
I've read online of reports of 7,000+ cycles in one week of use with some osx laptops.
Just curious if anyone here runs smart utility and would be willing to throw up numbers for my unscientific comparison.
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Not sure how much I trust the numbers...
I have an old 2009 MBP thats used a ton...
Hitachi HTS543232L9SA02
Power On Hours 5187 and Load Cycle Count is 382946
I doubt those numbers are accurate because the Power On Hours should be much higher....
I have a 2010 MBP that was used a ton for about a year then is barely used
WDC-WXG0A79W7453
Power On Hours 8506 and Load Cycle Count is 727093
Then I have my main machine, a 2011 MBP thats not even a year old
Toshiba MK7559GSXF
Power On Hours 6313 and Load Cycle Count is 437196
This one is used a ton, so that doesn't surprise me at all. Going to swap it out for a SSD sooner or later anyways. -
Thanks for the reply. I agree some of those power on hours seem much lower than they would be - this laptop with teh numbers i posted has been running since Oct 2010.
Does seem like high LCC numbers on those macs - maybe they are measuring it differently? Or perhaps it is an issue, maybe one that doesnt crop up as much though.
Load cycle count HDD
Discussion in 'Apple and Mac OS X' started by jeep364, Feb 8, 2012.