On Tue, 2018-03-13 at 11:30 +0200, Jaco Kroon wrote: > On 11/03/2018 07:00, Bart Van Assche wrote: > > Did I see correctly that /dev/sdm is behind a MPT SAS controller? You may > > want to contact the authors of this driver and Cc the linux-scsi mailing > > list. Sorry but I'm not familiar with the mpt3sas driver myself. > > You did see correctly, all drives are behind the MPT SAS. If there is > in fact a problem with the driver (or the controller itself for that > matter) it would explain things. It would also explain why we don't see > this problem on other hosts. You may want to have a look at the following report, something I ran into myself yesterday: https://marc.info/?l=linux-scsi&m=152087904024146. Bart.