Hi list, We have debian lenny a iscsi + multipath system with a Clariion EMC RX300 as iscsi server. It is working fine, but from some days ago, it is writting (continously) on syslog: [5078349.903410] scsi 6:0:0:0: rejecting I/O to dead device [5078349.903410] scsi 7:0:0:0: rejecting I/O to dead device [5078349.903410] device-mapper: multipath emc: long trespass command will be send [5078349.903410] device-mapper: multipath emc: honor reservation bit will not be set (default) [5078349.947653] device-mapper: table: 254:6: multipath: unknown path selector type [5078349.947708] device-mapper: ioctl: error adding target to table scsi 6:0:0:0 not exist at lsscsi: # lscsi [8:0:0:0] disk DGC RAID 5 0324 /dev/sdc [9:0:0:0] disk DGC RAID 5 0324 /dev/sdd [10:0:0:0] disk DGC RAID 5 0324 /dev/sda [11:0:0:0] disk DGC RAID 5 0324 /dev/sdb multipath is working fine: # multipath -ll mpath0 (360060160e5101f0020efc45a01cddd11) dm-6 DGC ,RAID 5 [size=512G][features=1 queue_if_no_path][hwhandler=1 emc] \_ round-robin 0 [prio=2][active] \_ 8:0:0:0 sdc 8:32 [active][ready] \_ 9:0:0:0 sdd 8:48 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 10:0:0:0 sda 8:0 [active][ready] \_ 11:0:0:0 sdb 8:16 [active][ready] Dispositve 254:6 is mpath0: # devmap_name 254 6 mpath0 How could can I stop scsi system / multipath from this messages ? Is there any command who could help us ? Thank you for any advice PD: Sorry for my english