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Old 11-20-2013, 11:44 AM   #11
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Default Re: Build for a friend

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Originally Posted by briggs&straton View Post
but they are ssd, do i really need redundany?
More so than a spinning disk. Your SSD drives will (generally) fail more quickly than a spinning disk. With RAID 3, you get the speed boost of a striped volume, but have the parity disk for data recovery.

It's really not necessary, but you do have a $5,000 learning opportunity, so why not?
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Old 11-20-2013, 01:20 PM   #12
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More so than a spinning disk. Your SSD drives will (generally) fail more quickly than a spinning disk. With RAID 3, you get the speed boost of a striped volume, but have the parity disk for data recovery.

It's really not necessary, but you do have a $5,000 learning opportunity, so why not?
oh they fail more often? hmm thats kind of weird. Well then you sold me on raid 3 then!! well if i can find a nice raid controller.
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Old 11-20-2013, 01:49 PM   #13
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Not more OFTEN, more QUICKLY. They have a shorter life expectancy.
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Old 11-20-2013, 03:09 PM   #14
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They have a shorter life expectancy.
<OffTopic>
That's what really blows me away about SSD's. One of the main goals of moving to flash storage was to remove the mechanical parts of the drive, thus increasing MTTF. At least, during the lead up to SSD (from what I can remember) that was one of the main selling points, no more failed drives.
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Old 11-20-2013, 03:19 PM   #15
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more quickly as in the life expectancy? or because they get to hot sometimes and just start failing?
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Old 11-20-2013, 03:40 PM   #16
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Check this article. It does a way better job of explaining it. And I learned my previous statement wasn't exactly right either.
Storage talk: Understanding your solid-state drive | How To - CNET
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Old 11-20-2013, 04:45 PM   #17
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more quickly as in the life expectancy? or because they get to hot sometimes and just start failing?
It's not as random as that. Basically, each time electricity passes through to a memory cell, it degrades a layer of oxide that allows the cell to hold its charge. This is a problem in all (commercial) implementations of SSDs. It can only withstand so many passes (referred to as P/E cycles (remember that term, as some SSD's cap at 10,000, others at 100,000)) before a cell becomes unable to hold information.
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Old 11-21-2013, 05:55 AM   #18
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well i appreciate the explanation!!
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