VMware ESXi host has FC disconnections and missing paths

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Visibility:: Public

Votes:: 1

Category:: ontap-9

Specialty:: san

Last Updated:

Applies to

ONTAP
VMware ESXi

Issue

All SAN initiators report Partially Connected
In system Manager Single FC port from each node in 2 node HA pair has 0 MB/s throughput
In fibre channel environment hundreds of Host logins (PLOGI) across all storage nodes seen in EMS logs
VMware hosts experience disconnections, all paths down (APD), permanent device loss (PDL)
All connection issues proceeded from a fabric registered state change notification (RSCN)
Missing/failed paths for one Storage Target HBA port once system is stable

VMware log Example:

esxcfg-mpath -b

vmhba2:C0:T6:L1 LUN:1 state:dead fc Adapter: Unavailable Target: Unavailable

vmhba2:C0:T3:L1 LUN:1 state:dead fc Adapter: Unavailable Target: Unavailable



less /var/run/log/vmkernel.log

lpfc_els_rcv_rscn:5945: 0:(0):0214 RSCN received Data:

lpfc_els_rcv_rscn:5955: 0:(0):5973 RSCN received event x0 : Address format x03 : DID x000000

lpfc_handle_status:5079: 0:(0):3271: FCP cmd x8a failed <1/6> sid , did , oxid x7a iotag x417 Invalid RPI Host Retry

NMP: nmp_ThrottleLogForDevice:3861: Cmd 0x8a (,) to dev "naa.xyz" on path "vmhba1:C0:Tx:L1" Failed:

NetApp:

bcomd: san.initiator.login.missing:notice]: Initiator "xyx" is not logged in to any LIFs on this node for Vserver "svm123", portset "". Access to LUNs might be disrupted if a failover occurs.