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"What SMART Stats Tell Us About Hard Drives"



 
 
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  #1  
Old October 6th 16, 09:40 PM posted to comp.sys.ibm.pc.hardware.storage
Lynn McGuire[_3_]
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Default "What SMART Stats Tell Us About Hard Drives"

"What SMART Stats Tell Us About Hard Drives"
https://www.backblaze.com/blog/what-...rive-failures/

"What if a hard drive could tell you it was going to fail before it actually did? Is that possible? Each day Backblaze records the
SMART stats that are reported by the 67,814 hard drives we have spinning in our Sacramento data center. SMART stands for
Self-Monitoring, Analysis and Reporting Technology and is a monitoring system included in hard drives that reports on various
attributes of the state of a given drive."

Smart.

Lynn
  #2  
Old October 7th 16, 05:16 AM posted to comp.sys.ibm.pc.hardware.storage
VanguardLH[_2_]
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Default "What SMART Stats Tell Us About Hard Drives"

Lynn McGuire wrote:

"What SMART Stats Tell Us About Hard Drives"
https://www.backblaze.com/blog/what-...rive-failures/


http://www.extremetech.com/computing...s-about-to-die

Cites BackBlaze data 2 years ago on 40,000 drives. The same SMART
attributes mentioned back then to monitor the health of an HDD are the
sames ones mentioned in their newer blog.

That SMART doesn't dictate reliable prediction of failure is probably
due to the leniency allowed to HDD manufacturers on how they report the
SMART values or the means they use to mask them.

When a non-zero Current Pending Sector Count value doesn't drop to zero
is when I get concerned that the drive can no longer mask its newly
detected bad sectors to reserved space on the HDD. There is no more
reserved space for the remapping so the bad blocks remain in use. The
reallocation of data to the reserved space can't happen until the data
gets read from the bad block to move it. If the bad block is so bad
that repeated read attempts fail to capture the data then the bad block
cannot be mapped (by moving the data to reserved space).
  #3  
Old October 25th 16, 05:39 PM posted to comp.sys.ibm.pc.hardware.storage
Shadow[_2_]
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Posts: 195
Default "What SMART Stats Tell Us About Hard Drives"

On Thu, 6 Oct 2016 15:40:51 -0500, Lynn McGuire
wrote:

"What SMART Stats Tell Us About Hard Drives"
https://www.backblaze.com/blog/what-...rive-failures/

"What if a hard drive could tell you it was going to fail before it actually did? Is that possible? Each day Backblaze records the
SMART stats that are reported by the 67,814 hard drives we have spinning in our Sacramento data center. SMART stands for
Self-Monitoring, Analysis and Reporting Technology and is a monitoring system included in hard drives that reports on various
attributes of the state of a given drive."


Good article. TY

Smart.

Yes.
How long the drives were in operation would have added more
insight. The 4GB Toshibas are far older than some of the Seagates.
[]'s
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  #4  
Old October 25th 16, 10:27 PM posted to comp.sys.ibm.pc.hardware.storage
Ant
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Posts: 858
Default "What SMART Stats Tell Us About Hard Drives"

Shadow wrote:
On Thu, 6 Oct 2016 15:40:51 -0500, Lynn McGuire
wrote:


"What SMART Stats Tell Us About Hard Drives"
https://www.backblaze.com/blog/what-...rive-failures/

"What if a hard drive could tell you it was going to fail before it actually did? Is that possible? Each day Backblaze records the
SMART stats that are reported by the 67,814 hard drives we have spinning in our Sacramento data center. SMART stands for
Self-Monitoring, Analysis and Reporting Technology and is a monitoring system included in hard drives that reports on various
attributes of the state of a given drive."


Good article. TY

Smart.

Yes.
How long the drives were in operation would have added more
insight. The 4GB Toshibas are far older than some of the Seagates.
[]'s


My 1 TB Seagate crashed hard (death of clicks) on Saturday at 4:37 AM
PDT when my very old, updated Windows XP Pro SP3 was idling overnight.
I only had it for almost five years! However, my Seagate 320 GB HDD is
still working from 2007!
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  #5  
Old October 25th 16, 10:42 PM posted to comp.sys.ibm.pc.hardware.storage
Percival P. Cassidy
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Posts: 227
Default "What SMART Stats Tell Us About Hard Drives"

On 10/25/2016 05:27 PM, Ant wrote:

"What SMART Stats Tell Us About Hard Drives"
https://www.backblaze.com/blog/what-...rive-failures/

"What if a hard drive could tell you it was going to fail before it actually did? Is that possible? Each day Backblaze records the
SMART stats that are reported by the 67,814 hard drives we have spinning in our Sacramento data center. SMART stands for
Self-Monitoring, Analysis and Reporting Technology and is a monitoring system included in hard drives that reports on various
attributes of the state of a given drive."


Good article. TY

Smart.

Yes.
How long the drives were in operation would have added more
insight. The 4GB Toshibas are far older than some of the Seagates.
[]'s


My 1 TB Seagate crashed hard (death of clicks) on Saturday at 4:37 AM
PDT when my very old, updated Windows XP Pro SP3 was idling overnight.
I only had it for almost five years! However, my Seagate 320 GB HDD is
still working from 2007!


I just read a piece about the Internet Archive and their storage system:
30PB, mostly on Seagate drives but now with some HGST as well. No air
conditioning, but they turn the fans on in hot weather.

Perce




 




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