On 18 April 2016 at 21:56, TK (Tzung-Kwang) Wang-SSI <tk.wang@xxxxxxxxxxxxxxx> wrote: > > Yes, dmesg shows "Unsupported sector size 520.". So solution for this issue is have 520-byte sector size support in linux device driver, it seems. You might find the sg ioengine works but if it depends on regular block device commands to get information (e.g. the disk size) then things might fail before I/O can be submitted. In a previous message you mention DIF (the data integrity extensions) but to use that it's worth noting your driver and controller have to support it in addition to the disk. Perhaps you can use lsscsi's --protection and --protmode to find out what's available? Here's what Red Hat had to say about DIF support in RHEL 6: https://access.redhat.com/solutions/41548 but I don't know if that impacts your case. -- Sitsofe | http://sucs.org/~sits/ -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
