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CHAP authentication failure after ONTAP upgrade on ESXi hosts

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Applies to

  • VMware ESXi
  • ONTAP 9 
  • iSCSI

Issue

Post ONTAP upgrade, iSCSI datastores are showing inaccessible from VMware vCenter.

When connecting to an affected ESXi host, the datastores cannot be accessed.

From ONTAP EMS logs, similar errors can be seen:

Wed Mar 29 12:27:17 +0200 [nasfxxefra07-01: iswt_admin_thread: iscsi.warning:notice]: ISCSI: Authentication failed for initiator iqn.1xx1-05.com.microsoft:pxxcpavdbxxx
Wed Mar 29 13:08:30 +0200 [nasxxdefra07-01: iswt_admin_thread: iscsi.warning:notice]: ISCSI: Authentication failed for initiator iqn.1xx1-05.com.microsoft:pxxcpavdbxxx
Wed Mar 29 13:12:42 +0200 [naxxcdefra07-01: iswt_admin_thread: iscsi.warning:notice]: ISCSI: Authentication failed for initiator iqn.1xx1-05.com.microsoft:pxxcpavdbxxx

 

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