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Missing MCC Bootargs After Option 6 Prevent DR Partner Connectivity

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Category:
metrocluster
Specialty:
CORE
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Applies to

  • ONTAP MetroCluster IP configurations
  • Headswap/Upgrade scenarios

Issue

  • After performing a headswap and executing boot menu Option 6 (Update flash from backup config), MetroCluster nodes are unable to detect or reconnect to the DR partner. The following message is observed during boot:
  • Jun 01 12:16:27 [node:iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting for the target iqn.xxx (type: dr_partner, address: 172.1.1.4:65200). Reason: session login timed out.
  • When booting to Maintenance Mode, the required MetroCluster (MCC) boot arguments are found to be missing:
    • Bootarg Example Value
      bootarg.mcc.port_a_ip_config 192.168.10.2/24,0,0,192.168.10.4,192.168.10.3
      bootarg.mcc.port_b_ip_config 192.168.20.2/24,0,0,192.168.20.4,192.168.20.3
      bootarg.mgwd.cluster_uuid 11111111-2222-3333-4444-555555555555
      bootarg.mgwd.partner_cluster_uuid aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
      bootarg.mcc.pri_partner_uuid 12345678-1234-1234-1234-123456789abc
      bootarg.mcc.aux_partner_uuid abcdef12-3456-7890-abcd-ef1234567890
      bootarg.mcc_iscsi.node_uuid fedcba98-7654-3210-fedc-ba9876543210
      bootarg.mcc.adp_enabled true
      bootarg.mcc.local_config_id <local_config_id>
      bootarg.mcc.dr_partner <dr_partner_id>

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