rport-1:0-0: blocked FC remote port time out: saving binding
Issue
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System
/var/log/messages
,/var/log/dmesg
, or vmcore contain the following logged events indicating FC path lost between host's HBA and storage:{RHEL6,7} Jun 5 23:46:53 HOST kernel: rport-1:0-0: blocked FC remote port time out: removing target and saving binding Jun 5 23:46:53 HOST kernel: rport-1:0-1: blocked FC remote port time out: removing target and saving binding {RHEL5} Jun 5 23:46:53 HOST kernel: rport-1:0-0: blocked FC remote port time out: saving binding Jun 5 23:46:53 HOST kernel: rport-1:0-1: blocked FC remote port time out: saving binding -or if option fc_remove_on_dev_loss set- Jun 5 23:46:53 HOST kernel: rport-1:0-0: blocked FC remote port time out: removing target and saving binding Jun 5 23:46:53 HOST kernel: rport-1:0-1: blocked FC remote port time out: removing target and saving binding
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Device mapper multipath paths going down and
multipath -ll
shows the path down:360060e80056204000000620400000085 dm-1 HP,OPEN-V [size=30G][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=2][active] \_ 2:0:0:1 sdb 8:16 [active][ready] \_ 3:0:0:1 sdd 8:48 [failed][ready] <--- ^^^^^^
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Found following messages logged in
/var/log/messages
, what could be possible cause and solution of this issue:Jan 20 15:54:20 HOST kernel: qla2xxx 0000:0f:00.1: LOOP DOWN detected (2 3 0). Jan 20 15:54:36 HOST kernel: rport-3:0-0: blocked FC remote port time out: saving binding Jan 20 15:54:36 HOST kernel: sd 3:0:0:1: SCSI error: return code = 0x00010000 Jan 20 15:54:36 HOST kernel: end_request: I/O error, dev sdd, sector 593496 Jan 20 15:54:36 HOST kernel: device-mapper: multipath: Failing path 8:48.
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Ext4 filesystem mount goes read-only and cause system hang, observed
blocked FC remote port time out: saving binding
, in messages. - Server kernel panic and vmcore contain the blocked FC remote port error message, what does cause this issue?
Environment
- Red Hat Enterprise Linux(RHEL) 7
- Red Hat Enterprise Linux(RHEL) 6
- Red Hat Enterprise Linux(RHEL) 5
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