Hannes, > 1) all underlying devices are exported to the OS; of course they have > to be properly masked etc to avoid udev to latch on those devices. I > also was under the impression that the 'no_uld_attach' should be > sufficient here, but then that only avoids the 'sd' driver to become > attached to it. The actual SCSI device is still visible, so one > _might_ be tempted to use the 'sg' device and export it to things like > qemu. Which of course should be avoided. Well, yes. But in this case the bug report was that sg devices were no longer available for smartmontools to monitor. -- Martin K. Petersen Oracle Linux Engineering