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SSD verses tradition magnetic HDD

Posted on 2016-10-22
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Hello experts,

I am thinking about putting Transcend 370 2.5" SSD - 256 GB in some of my client's industrial computer system to replace the WD magnetic drives.

This is harsh environment with unpredictable power surges. Even though the computers are protected by UPS systems, the UPS systems are not top grade.

I have been told that SSD drives are prone and intolerant of power surges or brownouts. Is this true and are SSDs more intolerant of power surges than madnetic drives?

Thanks!
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Question by:Saxitalis
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John Hurst earned 500 total points (awarded by participants)
ID: 41855417
I am not sure above power surges (I ALWAY use a UPS or laptop with good battery).

However, I just purchased a ThinkPad X1 with a 1 TB PCIe NVMe SSD drive that has a five year warranty.

Large DB type applications (QuickBooks, VMWare and like) are much faster. Tree Size (not something you would use in your environment) comes up in 5 seconds on my SSD drive instead of 3 or 4 minutes on a hard drive.

Start up time is 15-20 seconds instead of 4 or 5 minutes waiting for everything to load.

A commercial SSD should be fine in your environment but do use a UPS.
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by:Saxitalis
ID: 41855449
Thanks for your response but the affect of power surges on the Transcend 370 2.5" SSD - 256 GB is what I am trying to figure out.

Does anyone know if the Transcend 370 2.5" SSD - 256 GB drive is more susceptible to power interruptions than a traditional magnetic drive??

Thanks!
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by:John Hurst
ID: 41855452
Any electronic device is susceptible to power surges: TV's, modems, switches, motherboards and so on. An all electronic SSD is no more or less susceptible to power surges than other devices.  

A hard drive can corrupt from a power surge because the rotation is slower than a fast surge
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by:nobus
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ID: 41855765
it seems to have been a problem with the first versions :
https://techreport.com/forums/viewtopic.php?t=91648

however this article contradicts it :  http://www.extremetech.com/computing/169124-the-mysteriously-disappearing-drive-are-power-outages-killing-your-ssds

very interesting question !
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by:kevinhsieh
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I would look at higher quality drives in general, such as Samsung. Any enterprise level drive (ie DC=data center) will have a large enough capacitor to be able to properly destage the contents of the DRAM cache onto the flash media. Consumer laptop drives don't, and a sudden power loss can absolutely corrupt the drive.
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by:andyalder
andyalder earned 500 total points (awarded by participants)
ID: 41856318
Agree with kevinhsieh about the capacitors and associated circuitry (PLP = power loss protection) although it's not so much the manufacturer since Samsung (for example) make the enterprise SM863 which has PLP and the EVO 850 which doesn't out of the same chips. The enterprise one also has a lower available capacity which gives more overprovisioning so it can do efficient garbage collection in background without TRIM support.
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by:Saxitalis
ID: 41860810
Thanks much!!
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by:John Hurst
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Question was fully answered
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