Hi. I wonder if aacraid shouldn't properly inform kernel about sdd disk via /sys/devices/../queue/rotational flag? Using 3.18.22 kernel and aacraid driver tells linux that all drives are rotational: raid: # cat /sys/devices/pci0000:80/0000:80:03.0/0000:81:00.0/host10/target10:0:0/10:0:0:0/block/sda/queue/rotational 1 lvm on top of that raid: # cat /sys/devices/virtual/block/dm-*/queue/rotational 1 1 1 while this system has raid array of SSD drives only (INTEL SSDSC2BB30). No rotational disks. Adaptec ASR8405 7.8-0 (32730) firmware. -- Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org ) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html