ALUA (failover mode 4) configuration could not failover the device: Handler scsi_dh_alua Error 15
Issue
- Paths show failing after configuring multipath with
ALUA( failover mode 4). - Following are the logs found in the
/var/log/messagesfile
device-mapper: multipath: Could not failover the device: Handler scsi_dh_alua E
rror 15.
device-mapper: multipath: Failing path 8:32.
device-mapper: multipath: Could not failover the device: Handler scsi_dh_alua Error 15.
device-mapper: multipath: Failing path 8:64.
sd 1:0:1:3: alua: port group 01 state N non-preferred supports tolUsNA
sd 1:0:1:3: alua: port group 01 switched to state A
sd 2:0:1:3: alua: port group 01 state A non-preferred supports tolUsNA
Environment
- System Dell R720 with two Fibre Channel QLogic "QLE2560" connected to EMC VNX5300 storage
- Red Hat Enterprise Linux 6.4
- device-mapper-*-1.02.77-9.el6.x86_64
- device-mapper-persistent-data-0.1.4-1.el6.x86_64
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