Hi, I have an Intel 335 240GB SATA drive installed behind a PATA bridge (old Thinkpad X41). I'm running Linux 2.6.32 (and 2.6.34 is also an option that works with this hardware -- later kernels don't seem to be able to set up the framebuffer how I want it). It appears that TRIM is not available over the PATA bridge.
Assuming TRIM is not available, is it better to live without TRIM (and leave plenty of unused space on the drive), or attempt to emulate TRIM by zeroing unused blocks. Zeroing might be beneficial if the drive optimises storage of zero blocks. Otherwise it will just add more wear.
Does anyone know if zero block storage is optimised on this drive and will work as a TRIM substitute?