Does Ubuntu 11.04 fully support TRIM?

Question

Does Ubuntu 11.04 fully support TRIM? And what happens if it doesn't, will my SSD wear out?

Answer 1

Yes, but you have to enable it manually by adding the discard option to your /etc/fstab like so:

/dev/mapper/faldara-natty /               ext4    discard,noatime,errors=remount-ro 0 1

Also the purpose of TRIM is to prevent a decrease in write throughput of the drive after much use, not to prevent it from wearing out. I have been using a drive for over a year without TRIM and have yet to suffer any performance loss, so IMHO, it is much ado about nothing.