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
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