Hi, I am a new user of tgtd. I am intending to replace LIO with tgtd because it's a user-space target. My use-case is to export files to remote initiators, so I will be using the backing-store option. I have been trying to go through the docs and examples but I have some questions I'd like to clarify. * aio driver. Does this mean tgtd won't pass down flush/barrier requests from initiators (like in LIO)? I. E. data loss on power failure? * I am using btrfs on the target server and I'd like to use the thin_provisioning option. Am I correct in that this has to be enabled via "params thin_provisioning=1" in the backing-store section? * Is there a way to hint to the initiators that the LUN is non-rotational? Some OSes use this parameter to adjusts its internal io scheduling. * i notice that tgtd uses 16 IO threads no matter the number of cpus. Is there a guideline on a suitable number for my use-case? * Is ErrorRecoveryLevel=1/2 implemented in tgtd so that supporting clients transparently can recreate the connection after interruption or target restarts? * the targets.conf.5.xml doesn't seem to include all available options. I am glad for the examples which helped me get going :) I also noticed the following warning: tgtd: bs_init_signalfd(267) could not open backing-store module directory /usr/lib/tgt/backing-store I created the dir, but can't see it is actualky being used. What is the purpose of this directory? Thanks, ~ Forza
