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    • Disk redundancy failed error and wrong SAS speed in a disk bay
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Disk_redundancy_failed_error_and_wrong_SAS_speed_in_a_disk_bay
      Tue Feb 02 14:34:30 +0100 [node_name: dsa_worker0: ds.sas.drivephy.disableErr:error]: Disk [NETAPP :X336_HAKPE04TA07:NA00] S/N [01234567] on channels 0b shelf ID 0 IOM B bay 4 disabled due to excessiv...Tue Feb 02 14:34:30 +0100 [node_name: dsa_worker0: ds.sas.drivephy.disableErr:error]: Disk [NETAPP :X336_HAKPE04TA07:NA00] S/N [01234567] on channels 0b shelf ID 0 IOM B bay 4 disabled due to excessive invalid dword error.
    • Missing disk after replacement
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Missing_disk_after_replacement
      Mon Jan 01 12:28:14 0300 [node_name: dmgr_thread: raid.disk.missing:info]: Disk /aggregate/plex0/rg0/0a.0.0 Shelf 0 Bay 0 [NETAPP X123_ABCD012345678 NA00] S/N [AB123456] UID [...] is missing from the ...Mon Jan 01 12:28:14 0300 [node_name: dmgr_thread: raid.disk.missing:info]: Disk /aggregate/plex0/rg0/0a.0.0 Shelf 0 Bay 0 [NETAPP X123_ABCD012345678 NA00] S/N [AB123456] UID [...] is missing from the system Mon Jan 01 12:28:14 0300 [node_name: config_thread: raid.config.filesystem.disk.missing:info]: File system Disk /aggregate/plex0/rg0/0a.0.0 Shelf 0 Bay 0 [NETAPP X123_ABCD012345678 NA00] S/N [AB123456] UID [...] is missing.
    • How to determine a failed disk location based on disk id using HWU
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_determine_a_failed_disk_location_based_on_disk_id_using_HWU
      Applies to ONTAP 9 HWU Hardware Universe Disk Description This procedure describes how to determine the location of a failed disk based upon the disk id.