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Does action need to be taken for an ActiveIQ Alert for bug 1377298?

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Category:
fas-systems
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perf
Last Updated:

Applies to

ONTAP 9.3 and newer

Answer

  • The bug is for an ONTAP upgrade disabling the rewarm and mbuf insert external cache options that were on prior to upgrade
  • The alert is informational and would only impact upon a simple controller reboot (or takeover/giveback) as cache is not restored and reads go to disk instead of external cache
  • Check ActiveIQ to see if FlashCache rewarm and mbuf inserts were enabled before the upgrade:
    1. Go to ActiveIQ
    2. Click AutoSupport
    3. Find a WEEKLY_LOG from before the ONTAP upgrade
    4. Go to EXTERNAL-CACHE-OPTIONS.xml and see if output was similar to below:
<ec_is_enabled>true</ec_is_enabled>
<ec_is_warm_enabled>true</ec_is_warm_enabled>
<ec_is_mbuf_inserts_enabled>false</ec_is_mbuf_inserts_enabled>
  • Re-enable FlashCache options, follow the documented workaround in BUG: 1377298 

Notes:

  • The bug can affect where either mbuf inserts and/or rewarming were true then both are false after the upgrade of ONTAP
  • To determine if mbuf inserts (lopri) should be enabled for your workload, contact your account team for further assistance as Support cannot make recommendations for your specific workload

Additional Information

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