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    • Write-Back Caching Forcibly Disabled Error Not Clearing even after controller replacement
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/Write-Back_Caching_Forcibly_Disabled_Error_Not_Clearing_even_after_controller_replacement
      Applies to NetApp E-Series Controllers NetApp SANtricity OS Issue Write-Back Caching Forcibly Disabled error stuck after controller replacement and/or successful redistribution of volumes
    • Slow CIFS write performance with flexcache writeback enabled volumes
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Slow_CIFS_write_performance_with_flexcache_writeback_enabled_volumes
      Applies to ONTAP 9.15.1 Flexcache write-back CIFS Issue Writing small files 10MB and smaller to a Flexcache destination does not show any performance improvements over using Flexcache write-around con...Applies to ONTAP 9.15.1 Flexcache write-back CIFS Issue Writing small files 10MB and smaller to a Flexcache destination does not show any performance improvements over using Flexcache write-around configuration
    • E-Series - Write cache not working in Simplex systems
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/E-Series_-_Write_cache_not_working_in_Simplex_systems
      Applies to E-Series Simplex configurations Issue Write cache is not enabled in Simplex configurations resulting in possible performance impact.
    • E-Series Notification (Write-back caching forcibly disabled) CRITICAL due to faulty battery
      https://kb.netapp.com/on-prem/E-Series/Hardware-KBs/E_Series_Notification_Write_back_caching_forcibly_disabled_CRITICAL_due_to_faulty_battery
      E-Series notification received: “Write-back caching forcibly disabled”. This could be caused due to battery issue. KB article provides solution to resolve this issue.