Had a Hard Drive Start Knocking...

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Apoptosis
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Had a Hard Drive Start Knocking...

Post by Apoptosis » Mon Apr 19, 2010 7:50 pm

Not what you want to see on your hard drive:
dead_velociraptor.jpg
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should look like this:
good_velociraptor.jpg
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Re: Had a Hard Drive Start Knocking...

Post by geokilla » Mon Apr 19, 2010 9:58 pm

Is there a difference between the two pictures besides the health status?
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Re: Had a Hard Drive Start Knocking...

Post by stunts7058 » Mon Apr 19, 2010 10:01 pm

yea the unrepairable sector count has a yellow dot and has 5 on the top one and none on the bottom one

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Re: Had a Hard Drive Start Knocking...

Post by bubba » Tue Apr 20, 2010 5:32 am

Shows how much ware and tear power cycles has on hard drives.

Bad drive: 102 power cycles in 5695 hours
Health drive: 36 power cycles in 6854 hours
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Re: Had a Hard Drive Start Knocking...

Post by FZ1 » Tue Apr 20, 2010 6:26 am

At least you have an early warning.
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Re: Had a Hard Drive Start Knocking...

Post by Apoptosis » Tue Apr 20, 2010 7:44 am

bubba wrote:Shows how much ware and tear power cycles has on hard drives.

Bad drive: 102 power cycles in 5695 hours
Health drive: 36 power cycles in 6854 hours
They came from the same system and were installed on the same day :shock: :shock:

Good thing they were in a big RAID array.
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Re: Had a Hard Drive Start Knocking...

Post by bubba » Tue Apr 20, 2010 9:43 am

Wonder why they were powering up and down differently.
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Re: Had a Hard Drive Start Knocking...

Post by Sparky » Tue Apr 20, 2010 8:28 pm

I couldn't tell looking at your screen shots, but what program are you using to monitor your HD's? CDI??? I've used HD Health in the past but yours look much more informative.
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Re: Had a Hard Drive Start Knocking...

Post by Apoptosis » Wed Apr 21, 2010 2:16 pm

Sparky wrote:I couldn't tell looking at your screen shots, but what program are you using to monitor your HD's? CDI??? I've used HD Health in the past but yours look much more informative.
Yeah Crystal Disk Info - http://crystalmark.info/software/Crysta ... dex-e.html
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Re: Had a Hard Drive Start Knocking...

Post by Sparky » Wed Apr 21, 2010 7:59 pm

Thanks for info and the link. Glad I tried this test. HD Health shows everything fine but as you can see, one of my spares is about to die on me.
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Re: Had a Hard Drive Start Knocking...

Post by Apoptosis » Thu Apr 22, 2010 6:50 am

Attribute Name: Reallocated Sectors Count
Attribute ID: 05
Description: Count of reallocated sectors. When the hard drive finds a read/write/verification error, it marks this sector as "reallocated" and transfers data to a special reserved area (spare area).
This process is also known as remapping and "reallocated" sectors are called remaps. This is why, on a modern hard disks, you can not see "bad blocks" while testing the surface - all bad blocks are hidden in reallocated sectors. However, the more sectors that are reallocated, the more a sudden decrease (up to 10% and more) can be noticed in the disk read/write speed.
You might be able to 'fix' the sectors with a low-level format.
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Re: Had a Hard Drive Start Knocking...

Post by kenc51 » Thu Apr 22, 2010 12:43 pm

An exceptional bit of software, which has been around for years and is free; is "MHDD"
You can use this to do the low level format as Apoptosis said but if there are unrecoverable sectors, MHDD can nuke them for you.
You loose a little space (couple of MB in most cases), but gain a HDD that performs like new.

If you feel up to it, you could even tell it to kill all sectors that take longer than say ~3msecs to "flip" (go from 1 to 0). This will turn your hdd into a super fast drive, but you'll loose ~3/4 of space on an older disk. :shock:

http://hddguru.com/content/en/software/2005.10.02-MHDD/

Be careful when using as any sectors marked as dead are dead forever, the changes cannot be undone in the hdd firmware even if the sectors are good!

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Re: Had a Hard Drive Start Knocking...

Post by Apoptosis » Thu Apr 22, 2010 6:19 pm

I'd try out Seatools before anything else - http://www.seagate.com/staticfiles/supp ... p-1201.exe
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Re: Had a Hard Drive Start Knocking...

Post by Sparky » Thu Apr 22, 2010 8:27 pm

Apoptosis wrote:
Attribute Name: Reallocated Sectors Count
Attribute ID: 05
Description: Count of reallocated sectors. When the hard drive finds a read/write/verification error, it marks this sector as "reallocated" and transfers data to a special reserved area (spare area).
This process is also known as remapping and "reallocated" sectors are called remaps. This is why, on a modern hard disks, you can not see "bad blocks" while testing the surface - all bad blocks are hidden in reallocated sectors. However, the more sectors that are reallocated, the more a sudden decrease (up to 10% and more) can be noticed in the disk read/write speed.
You might be able to 'fix' the sectors with a low-level format.
Thanks for the article, I read a few last night after I ran the test. I'll just toss another one of my spares in, it's not my master, just a back up drive. I've had the Maxtor that's failing for a few years now so I got my monies worth out of it.
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