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Hello, |
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|
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On Sat, 12 May 2012, Frank Steinmetzger wrote: |
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>On Thu, May 10, 2012 at 12:20:57PM -0400, Norman Invasion wrote: |
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>> On 9 May 2012 04:47, Dale <rdalek1967@×××××.com> wrote: |
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>> > Hi, |
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>> > |
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>> > As some know, I'm planning to buy me a LARGE hard drive to put all my |
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>> > videos on, eventually. The prices are coming down now. I keep seeing |
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>> > these "green" drives that are made by just about every company nowadays. |
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>> > When comparing them to a non "green" drive, do they hold up as good? |
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>> > Are they as dependable as a plain drive? I guess they are more |
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>> > efficient and I get that but do they break quicker, more often or no |
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>> > difference? |
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>> > |
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>> > I have noticed that they tend to spin slower and are cheaper. That much |
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>> > I have figured out. Other than that, I can't see any other difference. |
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>> > Data speeds seem to be about the same. |
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>> > |
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>> |
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>> They have an ugly tendency to nod off at 6 second intervals. |
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>> This runs up "193 Load_Cycle_Count" unacceptably: as many |
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>> as a few hundred thousand in a year & a million cycles is |
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>> getting close to the lifetime limit on most hard drives. I end |
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>> up running some iteration of |
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>> # hdparm -B 255 /dev/sda |
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>> every boot. |
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> |
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>I bought my current internal laptop disk for Christmas 2008. It's a Samsung |
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>HM500JI (with 500 GB). Early on I noticed that, according to smartctl, its |
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>Load_Cycle_Count is increasing every 2 or 3 seconds. I even asked Samsung |
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>about this, but they either couldn't give any clue or didn't want to, b/c the |
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>Serial Number is from Turkey, so not from the European market. |
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> |
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>Anyhoo... I just checked the values: |
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>Power on hours: 11500 |
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>Start/stop count: 2797 |
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>Power cycle count: 2197 |
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> |
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>But the load cycle count is at almost 12.3 million(!). That just can't be |
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>right. I stopped believing that number a good while ago. |
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|
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As I said in another mail: laptop drives are built for frequent |
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unloading. Your number does seem a bit high though, that's about 1000 |
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load cycles per hour... |
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|
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>OTOH, I just became a bit nervous when looking at smartctl's output... |
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>Reallocated sectors: 7 (threshold 10) |
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>Calibration retry count: 1631 |
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>Load retry count: 1631 |
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|
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That's not healty. c.f. http://en.wikipedia.org/wiki/S.M.A.R.T. |
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|
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HTH, |
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-dnh |
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|
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-- |
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To resist the influence of others, knowledge of one's self is |
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most important. -- Teal'C, Stargate SG-1, 9x14 - Stronghold |
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