On 11-08-12 05:52 AM, Lukas Czerner wrote: .. > wiper.sh is just a hack to do rally nasty thing to the filesystam > (allocating all free space) It actually does NOT allocate all of the free space, but yes it does reserve *most* of it, leaving a few percent or a few hundred MB free while it issues the DSM/TRIM commands. And it uses the fallocate system call, so the reserved space is not actually written to when reserved, nor when later freed. I expect the next version of it to include support for FSTRIM, but that is a much slower method, especially for offline TRIM. Cheers -- Mark Lord Real-Time Remedies Inc. mlord@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html