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Xeb's Misadventures as a Data Recovery Engineer - Updated 4/11/2017 - Page 4

post #31 of 220
Quote:
Originally Posted by parityboy View Post

Quote:
Originally Posted by Lady Fitzgerald View Post

Absolutely go into detail. 'Twould be a learning experience.

I think this guy should sub too. tongue.gif

LOL! You would have thought he, of all people, would have know better than to go even a brief time without full, verified backups (yes, backups, plural, since even a backup can fail).
Edited by Lady Fitzgerald - 11/21/16 at 10:03am
     
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post #32 of 220
They kept a server in a bathroom for years, and nobody was completely sure the water had been cut off.
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post #33 of 220
Thread Starter 
Yeah but either way he knew it was bad that is why they made a backup. The problem is that Linus's system failed WHILE he was backing up. One of the PCIe slots died and corrupted the firmware on the RAID card. e-e I hate Nested RAIDs.
 
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post #34 of 220
@Lord Xeb

Even RAID 10?
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post #35 of 220
Quote:
Originally Posted by Lord Xeb View Post

Yeah but either way he knew it was bad that is why they made a backup. The problem is that Linus's system failed WHILE he was backing up. One of the PCIe slots died and corrupted the firmware on the RAID card. e-e I hate Nested RAIDs.

Again, he should have had more than one backup and should have been updating them all along instead of waiting until he suspected trouble. There is a reason I have backups out the wazoo. Even though multiple backups cost more, they are still much less expensive and far more reliable than professional data recovery (don't worry, Xebbie, there are plenty of people who do not understand the need for proper backups to give you plenty of job security).
     
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post #36 of 220
Thread Starter 
Well, today we had a job that went south. RAID for a business that someone attempted to rebuild twice after yanking the wrong drive... And not recoverable. RAID parameters are gone. frown.gif 8 4TB drives in RAID 5.
 
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post #37 of 220
Quote:
Originally Posted by Lord Xeb View Post

Well, today we had a job that went south. RAID for a business that someone attempted to rebuild twice after yanking the wrong drive... And not recoverable. RAID parameters are gone. frown.gif 8 4TB drives in RAID 5.

This should be an example to people that not all drive failures can be recoverable and that they should depend on proper backups instead playing Russian drive roulette, expecting their data can be recovered when a drive fails. This is not a reflection against data recovery specialists; if data is gone, no one can recover it. It is a condemnation against people who try to undertake data recovery themselves when a drive or RAID fails.

While RAIDs have very valuable uses, RAID in itself is not a backup; even RAIDs need to be properly backed up, properly meaning separate unconnected copies of the data in diverse locations.
     
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post #38 of 220
I just watched an 8 thumb drive RAID video on Youtube. My first thought was of Xeb's avatar.
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post #39 of 220
Thread Starter 
Quote:
Originally Posted by Lady Fitzgerald View Post

Quote:
Originally Posted by Lord Xeb View Post

Well, today we had a job that went south. RAID for a business that someone attempted to rebuild twice after yanking the wrong drive... And not recoverable. RAID parameters are gone. frown.gif 8 4TB drives in RAID 5.

This should be an example to people that not all drive failures can be recoverable and that they should depend on proper backups instead playing Russian drive roulette, expecting their data can be recovered when a drive fails. This is not a reflection against data recovery specialists; if data is gone, no one can recover it. It is a condemnation against people who try to undertake data recovery themselves when a drive or RAID fails.

While RAIDs have very valuable uses, RAID in itself is not a backup; even RAIDs need to be properly backed up, properly meaning separate unconnected copies of the data in diverse locations.
This issue is the previous tech guy messed up big and put the backup onto the same RAID... sigh...
 
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post #40 of 220
Quote:
Originally Posted by Lord Xeb View Post

Quote:
Originally Posted by Lady Fitzgerald View Post

Quote:
Originally Posted by Lord Xeb View Post

Well, today we had a job that went south. RAID for a business that someone attempted to rebuild twice after yanking the wrong drive... And not recoverable. RAID parameters are gone. frown.gif 8 4TB drives in RAID 5.

This should be an example to people that not all drive failures can be recoverable and that they should depend on proper backups instead playing Russian drive roulette, expecting their data can be recovered when a drive fails. This is not a reflection against data recovery specialists; if data is gone, no one can recover it. It is a condemnation against people who try to undertake data recovery themselves when a drive or RAID fails.

While RAIDs have very valuable uses, RAID in itself is not a backup; even RAIDs need to be properly backed up, properly meaning separate unconnected copies of the data in diverse locations.
This issue is the previous tech guy messed up big and put the backup onto the same RAID... sigh...

Sigh! That's like putting a backup on an internal drive installed in the computer.
     
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CPUMotherboardGraphicsRAM
i7-5930K Haswell-e Asus X99-E WS/USB 3.1 Visiontek Radeon 7870 2GB with 6 miniDisplayports G-Skill Ripjaws 64GB (8x8GB) DDR4 2133 
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Kingston HyperX 32GB (8 x 4GB) 240-Pin DDR3 SDR... Western Digital WD Black WD2002FAEX 2TB 7200 RP... Western Digital WD Black WD2001FASS-0 2TB 128 GB Samsung 840 Pro SSD 
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Overclock.net › Forums › Components › Hard Drives & Storage › Xeb's Misadventures as a Data Recovery Engineer - Updated 4/11/2017