Thomas Jacob writes:
Btrfs will probably be the ideal Linux filesystem for this once you trust it enough to handle your email.
I don't think that btrfs is ready to be trusted.There's nothing wrong conceptually, with btrfs. It's a great idea, in theory, and it seems to work quite well for many people. But, from what I hear, if something goes urrp, and a btrfs filesystem gets corrupted, you're pretty much boned. You can't avoid taking a hit, 100% of the time, but you need to have confidence that you'll salvage enough of what you had, that you can pick up the pieces, and move on. From what I hear, btrfs isn't quite at that point, yet.
Now, for this discussion, I've been looking at the solid state disk industry, and its slow, but steady, progress. With the prevalence of SSDs, there's going to come a point where the platter speed and average seek times become less, and less important.
When that happens, the winner's going to be whoever gets out of the way faster, and doesn't diddle around too long, before sending your bytes to the disk, and doesn't waste its time getting them back to you. Because, diddling around, and trying to optimize your file layout, and making sure stuff isn't fragmented on disk; all of that, is not going to be as important as it's used to be, that's where I think we'll end up soon.
And I have to think that there's going to be a point at which the same thing is going to apply at the higher levels in the stack. Meaning that, if you're keeping index files around some sorts, and, trying to optimize your calls into the filesystem, then there has to be a point at which you're spending more time doing that, than what you actually end up saving.
But, that's just where I think the wind is blowing. I had no way of knowing the emergence of SSDss, of course, a decade ago. It's a relatively recent phenomenon.
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