Q. Following complain got from storage team.
HBA cards on the Hosts rm-lx-app-28 is not logged in to the switch rm-san-sw-88. Looks like either cable or card has a problem.
The WWN of the HBA card that's not logged in is 10000000c99eab1c.
Solution,
Run the systool command and see if the link shows down. If it is down, go to datacenter if you can easily access or ask someone on remote site to check it for you.
Check the value of port_state, if you see port_state = "Linkdown" then cable might be loose or might not be connected correctly.
[root@rm-lx-app-28 ~]# systool -c fc_host -v
Class = "fc_host"
Class Device = "host3"
Class Device path = "/sys/class/fc_host/host3"
active_fc4s = "0x00 0x00 0x01 0x00 0x00 0x00 0x00 0x01 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 "
fabric_name = "0x0"
issue_lip = <store method only>
maxframe_size = "2048 bytes"
node_name = "0x20000000c99eab1c"
port_id = "0x019000"
port_name = "0x10000000c99eab1c"
port_state = "Linkdown"
port_type = "Unknown"
speed = "unknown"
supported_classes = "Class 3"
supported_fc4s = "0x00 0x00 0x01 0x00 0x00 0x00 0x00 0x01 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 "
supported_speeds = "2 Gbit, 4 Gbit, 8 Gbit"
tgtid_bind_type = "wwpn (World Wide Port Name)"
uevent = <store method only>
Device = "host3"
Device path = "/sys/devices/pci0000:00/0000:00:04.0/0000:17:00.0/0000:18:02. 0/0000:22:00.0/host3"
uevent = <store method only>
Class Device = "host4"
Class Device path = "/sys/class/fc_host/host4"
active_fc4s = "0x00 0x00 0x01 0x00 0x00 0x00 0x00 0x01 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 "
fabric_name = "0x100000051eb60f80"
issue_lip = <store method only>
maxframe_size = "2048 bytes"
node_name = "0x20000000c99e1c96"
port_id = "0x019000"
port_name = "0x10000000c99e1c96"
port_state = "Online"
port_type = "NPort (fabric via point-to-point)"
speed = "8 Gbit"
supported_classes = "Class 3"
supported_fc4s = "0x00 0x00 0x01 0x00 0x00 0x00 0x00 0x01 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x0 0 0x00 0x00 0x00 0x00 0x00 "
supported_speeds = "2 Gbit, 4 Gbit, 8 Gbit"
tgtid_bind_type = "wwpn (World Wide Port Name)"
uevent = <store method only>
Device = "host4"
Device path = "/sys/devices/pci0000:00/0000:00:04.0/0000:17:00.0/0000:18:01. 0/0000:25:00.0/host4"
uevent = <store method only>
[root@rm-lx-app-28 ~]#
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