On 02/19/2013 10:41 PM, Noah Cutler wrote:
I have the 830 and was researching whether or not fstab "discard" option was still necessary for SSDs with ext4 partitions. Apparently it is for most SSDs, except for the Samsung 840 Pro, which apparently uses a new technology that conflicts with "discard"
Translation - they didn't implement discard and are relying purely on over-provisioning and other flash management techniques. Discard never was "necessary" anyway, it's just an optimization for informing the disk's firmware that some sectors are free for reclaiming.
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