Used WD hard drive shows high read/writes.

ironk

Senior member
Jun 18, 2001
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So got a used WD hard drive recently, and while it passed the both the short and extended tests through WD tools, I get this in Crystaldiskinfo:

http://i.imgur.com/vOxa4SH.png

Haven't seen those values for Total Host read and Total Host writes on the top right corner before, but they seem high. Its 36TB for reads and 14TB for writes. I don't know about the other values, but its showing as good. The date on the hard drive label says Nov 2008.
 
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Elixer

Lifer
May 7, 2002
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Going my the age of the HD alone... I sure hope you didn't pay that much for this thing.
 

Carson Dyle

Diamond Member
Jul 2, 2012
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Your drive is six years old and the hours showing is 39926, or 4.5 years. Sounds reasonable.

The system SSD in the computer that I'm using right now is 2.5 years old (built in July 2012). CrystalDiskMark shows Total Host Writes to be 13032 GB. So you have a drive that is more than twice as old, but only has 1 TB more written to it in its lifetime. That doesn't strike me as excessive. My guess would be that it was the system disk in someone's desktop computer.
 

ironk

Senior member
Jun 18, 2001
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Going my the age of the HD alone... I sure hope you didn't pay that much for this thing.
Nah, I didn't pay too much for it so wanted to check it well, but it can almost pass for 2009 since its only off by one month to that year.
The system SSD in the computer that I'm using right now is 2.5 years old (built in July 2012). CrystalDiskMark shows Total Host Writes to be 13032 GB. So you have a drive that is more than twice as old, but only has 1 TB more written to it in its lifetime. That doesn't strike me as excessive. My guess would be that it was the system disk in someone's desktop computer.
How many TB read/writes can hard drives do before they are not worth using? SSD's will probably be able to less I think, but the On hours factor in also I suppose.
 

Elixer

Lifer
May 7, 2002
10,371
762
126
Nah, I didn't pay too much for it so wanted to check it well, but it can almost pass for 2009 since its only off by one month to that year.

How many TB read/writes can hard drives do before they are not worth using? SSD's will probably be able to less I think, but the On hours factor in also I suppose.
It depends on the parts, if they don't wear out, you are good to go until it fails.
In practice, there is no set limit, they can fail at any time, and without warning.
Don't confuse NAND life with platter life, they are different beasts.
 

bigboxes

Lifer
Apr 6, 2002
41,079
12,317
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Pffft. You've got a young drive. HDDs fail for lots of reasons. Reads and writes is not a big factor in their longevity. Here's my drive info:

boxes_wd740adfd-oonlr1_01-02-2015_zps2c134409.jpg
 

ironk

Senior member
Jun 18, 2001
977
0
76
It depends on the parts, if they don't wear out, you are good to go until it fails.
In practice, there is no set limit, they can fail at any time, and without warning.
Don't confuse NAND life with platter life, they are different beasts.
ok, thanks for explaining.

Pffft. You've got a young drive. HDDs fail for lots of reasons. Reads and writes is not a big factor in their longevity. Here's my drive info:
well, that makes me feel a little better. :)
 

chubbyfatazn

Golden Member
Oct 14, 2006
1,617
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Pffft. You've got a young drive. HDDs fail for lots of reasons. Reads and writes is not a big factor in their longevity. Here's my drive info:

boxes_wd740adfd-oonlr1_01-02-2015_zps2c134409.jpg

What do you do with that drive? Just curious - that's around 238.25 hours of uptime per power cycle, just over 8 years of continuous uptime.

My own 74GB Raptor is at around 42000 hours, just bought a 3TB drive so I can retire it.
 

bigboxes

Lifer
Apr 6, 2002
41,079
12,317
146
What do you do with that drive? Just curious - that's around 238.25 hours of uptime per power cycle, just over 8 years of continuous uptime.

My own 74GB Raptor is at around 42000 hours, just bought a 3TB drive so I can retire it.

If it wasn't for Windows updates insisting on rebooting I'd have a lot less power cycles. The drive is my os drive. I originally bought it for my first dual-core (AMD Athlon X2 4400+) back in '06. When I build my first quad-core (Intel i7 920) to replace it in '09 my plan was to replace it with an Intel SSD (X25). Intel had some sort of firmware issue right at release time. By the time they had the issue fixed I couldn't afford to go SSD as my wife was diagnosed with Stage IV cancer. That Raptor is the best hard drive I have ever owned and I've owned a lot. I take it as a badge of honor the uptime that thing has going. I almost don't want to retire it and wonder how far it can go. I have SSDs in my wife's new build and as the OS drive in my file server. I have purchased a SanDisk Extreme Pro 480gb SSD for my new build. I'm just shy the cpu/mobo/video card. Got some debt to pay off in the next month or so and then I will be sitting sweet. I'll probably keep the Raptor as a data drive in the new rig.