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AIX host hung after unnegotiated takeover

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Category:
ontap-9
Specialty:
san
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Applies to

  • Ontap 9
  • ISCSI
  • AIX (IBM) host

Issue

  • After an unnegotiated takeover IBM host is unable to serve data
  • Events seen on host side:

errpt (error report)

F31FFAC3   1009144224 I Hhdisk9         PATH HAS RECOVERED

286CDA5B   1009144124 T Hiscsi0         SOFTWARE ERROR

02A8BC99   1009144124 P Hhdisk8         PATH HAS FAILED

 

  • EMS.log shows no events for failed iscsi initiator sessions or scsi disk errors
  • Initiators can be seen establishing sessions repeatedly every 2-3 minutes after takeover:

iswt_admin_thread: iscsi.notice:notice]: ISCSI: New session from initiator at IP addr 10.10.10.10

iswt_admin_thread: iscsi.notice:notice]: ISCSI: New session from initiator at IP addr 10.10.10.10

iswt_admin_thread: iscsi.notice:notice]: ISCSI: New session from initiator at IP addr 10.10.10.10

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