I'm running Ubuntu 10.04 and
lshw shows a "SAMSUNG SSD UM41". Any way for me to determine (1) that my SSD supports TRIM, and (2) that my OS and FS (ext4) are actually using this?
Update: Rather than doing web searches and inspecting various indirect variables, I'd like to get the as direct as possible a confirmation that the system is actually using TRIM, so I'm mostly interested in any tools or techniques for inspection/monitoring for active TRIM use. E.g., many folks point out TRIM has been in Linux since .28, but fail to realize that it was (is?) frequently disabled due to experimental status, that the filesystem has to also support TRIM, and so on.