What is the current locking granularity of GFS? I found an IBM GPFS report that stated the GFS uses a global lock, which is entirely false since I know GFS uses DLM. >From what I've seen from use, my guess is that it's at the directory level, which seems wierd. Writing to different files in the same directory gives sequential finishing times. when I modified the output to go to different directories, this change alleviated the finishing times disparity. -dan -- -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster