Hello, > > tunable feature that zeroes our free data > wouldn't it be better if the VM's would just support the TRIM command? the resources available to me indicate that the TRIM command is a not yet standarized command targeted at SSD disks to indicate free disk space. Does ext3/4 trigger a block device layer call that could result in a TRIM command? Thomas -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html