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Mediator operational status down

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Category:
metrocluster
Specialty:
MetroCluster
Last Updated:

Applies to

  • ONTAP 9
  • MetroCluster IP
  • Mediator

Issue

  • There are errors in the EMS log showing the Mediator iSCSI session changing to a 'Reconnecting' state
 
Example:

Tue Aug 17 21:27:52 +0200 [NODE-A-01: kernel: iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting for the target iqn.2012-05.local:mailbox.target.XXXXXXXXXXXXX:1 (type: mailbox, address: 1.2.3.4). Reason: no ping reply after 5 seconds.
Tue Aug 17 21:28:02 +0200 [NODE-A-01: kernel: iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting (destroy sim) for the target iqn.2012-05.local:mailbox.target.XXXXXXXXXXXXX:1 (type: mailbox, address: 1.2.3.4). Reason: session login timed out 2 times.

 
  • The Mediator syslog shows iSCSI timeouts between the Mediator host and the storage node's FreeBSD layer
 
Example:

Aug 17 21:28:49 Mediator kernel: [0]: iscsi-scst: conn_rsp_timer_fn:610:***ERROR***: Timeout 30 sec sending data/waiting for reply to/from initiator iqn.1994-09.org.freebsd:XXXXXXXXXXXXX (SID XXXXXXXXXXXXX), closing connection XXXXXXXXXXXXX
Aug 17 21:28:49 Mediator kernel: [59551]: close_conn:411:Closing connection XXXXXXXXXXXXX (conn_ref_cnt=2)
Aug 17 21:28:49 Mediator kernel: [59551]: scst: scst_rx_mgmt_fn:7794:TM fn NEXUS_LOSS_SESS/6 (mcmd XXXXXXXXXXXXX, initiator iqn.1994-09.org.freebsd:XXXXXXXXXXXXX, target iqn.2012-05.local:mailbox.target.XXXXXXXXXXXXX:1)
Aug 17 21:28:49 Mediator kernel: [59551]: scst_rx_mgmt_fn:7808:sess=XXXXXXXXXXXXX, tag_set 0, tag 0, lun_set 1, lun=0, cmd_sn_set 0, cmd_sn 0, priv XXXXXXXXXXXXX
Aug 17 21:28:49 Mediator kernel: [59551]: scst_post_rx_mgmt_cmd:7721:Adding mgmt cmd XXXXXXXXXXXXX to active mgmt cmd list
Aug 17 21:28:49 Mediator 3027 kernel: [59551]: req_cmnd_release_force:600:req XXXXXXXXXXXXX
Aug 17 21:28:49 Mediator kernel: [59551]: conn_abort:2605:Aborting conn XXXXXXXXXXXXX

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