Greetings: I would like to attend LSF/MM to continue discussion related to SMR. Besides the SMRFFS, we've been developing a zoned device mapper (ZDM). I would like to gather feedback and direction. I can provide a quick explanation of the architecture. This will enable existing software to work on zoned devices. Our work will initially focus on workloads provided by mdraid. Also, I would like to discuss the storage of the zone information in the kernel. It makes little sense for the drive to be continuously probed, or for each app to maintain it own, possibly un-synced, copy of the zone information. I'll bring along our work and recommendations of a solution based on Hannes' work in this area. I believe we need a common stackable interface to pass along this information, both up the kernel, and to userland. Lastly, we are still exploring the need for an additional elevator besides the no-op that orders not only by time, but also zone aware location. I'll have some test results by lsf/mm that we can discuss. Adrian Palmer Firmware Engineer II R&D Firmware Seagate, Longmont Colorado 720-684-1307 adrian.palmer@xxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
