I read somewhere that SSDs weren't made to be partitioned, and I have no idea about the validity of that affirmation.

I have just installed Windows on a Samsung 840 EVO 250Gb SSD, and I want to create a partition in it to install Ubuntu. Will it somehow degrade my SSD life if I have this dualboot setup?

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    Although not directly related to your question, you may also want to consider whether running one of your OSes in a VM would be a better solution. Having to reboot your entire system to switch between OSes is inconvenient, to say the least. – rob Oct 15 '14 at 21:34

What you heard may have been valid for some of the earliest solid-state storage devices, but does not apply to modern SSDs at the end-user level. First, modern flash memory can sustain many more erase/write cycles than earlier technology. Second, the SSD's firmware will perform wear-leveling across all the drive's flash memory, including the drive's spare memory and the memory used to store static files which rarely or never change.

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Don't worry about it. That's like worrying whether using your car will reduce its life before driving to the store to get a soda. Who cares? The reason you have things is so that you can use them. Altering your behavior because of microscopic affects on product life is just not worth it.

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    Truly, premature optimization is the root of all evil. – nullability Oct 15 '14 at 21:54

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