Hi listmates, Since kernel 2.6.34 the ssd related trim command is supported by the kernel. If I read things correct than the OS tells the ssd-device where the free space is. This looks to me as filesystem related action. Using a ssd disk raises the following questions. 1. If I make partitions on an ssd is the trim action bound to the partition or uses it the space of the whole device. What is influence of partitions on the trim command. 2. If I do device related actions, like dd if=disk of=ssd, is the trim functionality than active ? If not when are the unused blocks then erased ? When I mount the ssd after this action the OS doesn't know about the non used non erased blocks. Has somebody some expertice with this matter ? Thanks,Hans -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org