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EMS reports "cf.fsm.takeoverByPartnerDisabled"

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Applies to

  • ONTAP 9
  • AFF/FAS systems with HA Interconnect cables

Issue

  • EMS reports cf.fsm.takeoverOfPartnerDisabled due to unsynchronized log, followed by the failover is enabled messages:
Example:
 
Thu Dec 02 03:56:45 +0900 [node01: cf_main: cf.fsm.takeoverOfPartnerDisabled:error]: Failover monitor: takeover of node02 disabled (unsynchronized log).

Thu Dec 02 03:56:45 +0900 [node01: cf_main: cf.fsm.takeoverByPartnerDisabled:error]: Failover monitor: takeover of node01 by node02 disabled (unsynchronized log).

Thu Dec 02 03:56:48 +0900 [node01: nvmm_mirror_sync: nvmm.mirror.state.change:debug]: mirror of sysid 1, partner_type HA Partner, changed state from NVMM_MIRROR_LAYOUT_SYNCING to NVMM_MIRROR_LAYOUT_SYNCED and took 1 msecs.
Thu Dec 02 03:56:48 +0900 [node01: nvmm_mirror_sync: nvmm.mirror.state.change:debug]: mirror of sysid 1, partner_type HA Partner, changed state from NVMM_MIRROR_LAYOUT_SYNCED to NVMM_MIRROR_SYNCING_START and took 0 msecs.
Thu Dec 02 03:56:48 +0900 [node01: nvmm_mirror_sync: nvmm.mirror.aborting:debug]: mirror of sysid 1, partner_type HA Partner and mirror state NVMM_MIRROR_SYNCING_START is aborted because of reason NVMM_ERR_STREAM_MAP.
Thu Dec 02 03:56:48 +0900 [node01: nvmm_error: nvmm.mirror.aborting:debug]: mirror of sysid 1, partner_type HA Partner and mirror state NVMM_MIRROR_OFFLINE is aborted because of reason NVMM_ABORT_SYNCING_MIRROR.
Thu Dec 02 03:56:48 +0900 [node01: ib_cm_13: rdma.rlib.connected:debug]: misc:HA:P QP is now connected.
Thu Dec 02 03:56:48 +0900 [node01: ib_cm_1: rdma.rlib.connected:debug]: wafl:HA:P QP is now connected.
Thu Dec 02 03:56:48 +0900 [node01: ib_cm_14: rdma.rlib.connected:debug]: raid:HA:P QP is now connected.
Thu Dec 02 03:56:48 +0900 [node01: ib_cm_17: rdma.rlib.connected:debug]: misc:HA:P QP is now connected.

Thu Dec 02 03:56:49 +0900 [node01: cf_main: cf.fsm.takeoverOfPartnerEnabled:notice]: Failover monitor: takeover of node02 enabled
Thu Dec 02 03:56:49 +0900 [node01: cf_main: cf.fsm.takeoverByPartnerEnabled:notice]: Failover monitor: takeover of node01 by node02 enabled

  • Flapping interconnect link issue on the node might be seen:

Example:

Thu Dec 02 03:56:45 +0900 [node01: kernel: netif.linkDown:info]: Ethernet e0a: Link down, check cable.
Thu Dec 02 03:56:47 +0900 [node01: kernel: netif.linkUp:info]: Ethernet e0a: Link up.
Thu Dec 02 04:20:30 +0900 [node01: kernel: netif.linkDown:info]: Ethernet e0a: Link down, check cable.
Thu Dec 02 04:20:32 +0900 [node01: kernel: netif.linkUp:info]: Ethernet e0a: Link up.
 
  • HA interconnect port might be reporting high CRCs:

-- interface  e0h  (0 days, 1 hours, 3 minutes, 9 seconds) --

RECEIVE
Total frames:     1534m | Frames/second:    3208  | Total bytes:      2236g
Bytes/second:     4674k | Total errors:      1845  | Errors/minute:       0
Total discards:      0  | Discards/minute:     0  | Multi/broadcast: 31966k
Non-primary u/c:     0  | CRC errors:        1843  | Runt frames:         0
Long frames:         2  | Length errors:     101  | Alignment errors:    0
No buffer:           0  | Pause:               0  | Jumbo:             179m
Noproto:             0  | Bus overruns:        0  | LRO segments:    14947m
LRO bytes:        2012g | LRO6 segments:       0  | LRO6 bytes:          0
Bad UDP cksum:       0  | Bad UDP6 cksum:      0  | Bad TCP cksum:       0
Bad TCP6 cksum:      0  | Mcast v6 solicit:    0  | Lagg errors:         0
Lacp errors:         0  | Lacp PDU errors:     0

 

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