Forgot to include the error which seen in dmesg when I'm attempting to scan controller: [1132904.202696] scsi scan: INQUIRY result too short (5), using 36 [1132904.203384] scsi scan: INQUIRY result too short (5), using 36 [1132904.204204] scsi scan: INQUIRY result too short (5), using 36 [1132904.204892] scsi scan: INQUIRY result too short (5), using 36 There are 4 error messages because there are 4 drives (of 4) in standby mode.