> How can this happen that hdparm replies with IO error when the device > is there (and serving a working filesystem) ? Guys, I had a feeling to test hdparm -t/-T but it confuses me even more: hdparm -t /dev/sda <and> hdparm -T /dev/sda seem to work, providing reasonable stats. Here is the output from the latter one: root@XXXX:~# hdparm -T /dev/sda /dev/sda: Timing cached reads: 436 MB in 2.01 seconds = 217.11 MB/sec Any clues? -- Robotics engineer * GNU generation member Linux reg. user # 145057 * Open BSD secured Perl programmer * C coder * Firmware engineer -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html