how to fix "Target reports no device present" prob

joey_hung

I have three SAN robot device,why the mchanger39 alway show \r\n\"Target reports no device present\"\r\nbelow is my dmesg message\r\n***********************************************\r\nJul 30 14:52:02 asm mchanger: [ID 902828 kern.notice] mchanger36:       found Changer device at tgt0, lun0\r\nJul 30 14:52:02 asm mchanger: [ID 902828 kern.notice] mchanger36:       Vendor/Product ID = STK     L700e\r\nJul 30 14:52:02 asm scsi: [ID 193665 kern.info] mchanger36 at qla23002: target 0 lun 0\r\nJul 30 14:52:02 asm genunix: [ID 936769 kern.info] mchanger36 is /pci@1f,2000/QLGC,qla@1/mchanger@0,0\r\nJul 30 14:52:02 asm mchanger: [ID 902828 kern.notice] mchanger37:       found Changer device at tgt1, lun0\r\nJul 30 14:52:02 asm mchanger: [ID 902828 kern.notice] mchanger37:       Vendor/Product ID = STK     L700e\r\nJul 30 14:52:02 asm scsi: [ID 193665 kern.info] mchanger37 at qla23002: target 1 lun 0\r\nJul 30 14:52:02 asm genunix: [ID 936769 kern.info] mchanger37 is /pci@1f,2000/QLGC,qla@1/mchanger@1,0\r\nJul 30 14:52:02 asm mchanger: [ID 902828 kern.notice] NOTICE: mchanger39:       Target reports no device present