I have running Ubuntu 10.04 instance with EBS storage. Current type of my instance m1.small. I want to increase cpu performance, so I guess I should "convert" that instance to c1.medium. How can I do that? Can I do it "on fly" or I should stop it first?
When I create ext4 filesystem, there are many "features", which I can enable and disable - like has_journal, extent, huge_file and so on. Is there any way to know, which options were used while creating ext4 filesystem (after it been created, I mean)?
I have existed ext4 partition (created by somebody), but even don't know, did it use journal or extents.