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    • Is there minimum disk count requirement during IOM12 shelf expansion?
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Is_there_minimum_disk_count_requirement_during_IOM12_shelf_expansion
      Applies to DS224-12 Answer There is no such requirement. Follow Hot-adding disk shelves with IOM12 modules to hot-add IOM12 shelf to existing IOM12 shelf stack. Additional Information
    • Intermittent PSU Fan error
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Intermittent_PSU_Fan_error
      Fri Dec 30 03:38:58 +0900 [Nodename-01: dsa_worker0: ses.status.fanError:EMERGENCY]: DS224-12 (S/N SHFxxxxxxxxxxxx) shelf 18 on channel 0c cooling fan error for Cooling element 4: critical status. Fri...Fri Dec 30 03:38:58 +0900 [Nodename-01: dsa_worker0: ses.status.fanError:EMERGENCY]: DS224-12 (S/N SHFxxxxxxxxxxxx) shelf 18 on channel 0c cooling fan error for Cooling element 4: critical status. Fri Dec 30 03:39:34 +0900 [Nodename-01: dsa_worker1: ses.status.fanInfo:info]: DS224-12 (S/N SHFxxxxxxxxxxxx) shelf 18 on channel 0c cooling fan information for Cooling element 4: normal status.
    • How to map DS212C/DS224C elements by error messages and SES codes to a physical location on the shelf
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_map_DS212C_DS224C_elements_by_error_messages_and_SES_codes_to_a_physical_location_on_the_shelf
      Applies to DS212C DS224C FAS2600 FAS2700 FAS2820 AFF-A200 AFF-A220 Description The respective components for each shelf type are as shown. DS212C and DS224C shelves, rear view FAS2600/AFF-A200 and FAS...Applies to DS212C DS224C FAS2600 FAS2700 FAS2820 AFF-A200 AFF-A220 Description The respective components for each shelf type are as shown. DS212C and DS224C shelves, rear view FAS2600/AFF-A200 and FAS2700/AFF-A220 rear view
    • Two Power Supply Units (PSUs) of DS224c have no sensor reading but functional normally
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Two_Power_Supply_Units_PSUs_of_DS224c_have_no_sensor_reading_but_functional_normally
      [1] High critical: 52 C (125 F); high warning: 47 C (116 F) [2] High critical: 60 C (140 F); high warning: 55 C (131 F) [3] High critical: 60 C (140 F); high warning: 55 C (131 F) [4] High critical: 6...[1] High critical: 52 C (125 F); high warning: 47 C (116 F) [2] High critical: 60 C (140 F); high warning: 55 C (131 F) [3] High critical: 60 C (140 F); high warning: 55 C (131 F) [4] High critical: 60 C (140 F); high warning: 55 C (131 F) [5] High critical: 60 C (140 F); high warning: 55 C (131 F) [6] High critical: 62 C (143 F); high warning: 57 C (134 F) [7] High critical: 100 C (212 F); high warning: 90 C (194 F) Low critical: 0 C (32 F); low warning: 5 C (41 F)
    • One disk is not seen by the system
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/One_disk_is_not_seen_by_the_system
      DS224C Disk Shelf The cluster is missing one disk Each node has two spare disks, one for each pool Only seven spare disks are seen, eight are expected When the disks are listed, a disk is missing, in ...DS224C Disk Shelf The cluster is missing one disk Each node has two spare disks, one for each pool Only seven spare disks are seen, eight are expected When the disks are listed, a disk is missing, in this example disk 1.60.0 (Bay 0) is skipped Cluster::> disk show -container-type aggregate Disk Size Shelf Bay Type Type Name Output of 'storage shelf show' reports 'UNKWN LNK' for this disk This shows that the link has been disabled at the other end of the connection, in this case the drive
    • How to physically populate a DS224C or NS224 disk shelf with a partial set of disks
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_physically_populate_a_DS224C_or_NS224_disk_shelf_with_a_partial_set_of_disks
      Applies to DS224C Disk Shelf NS224 Disk Shelf ONTAP 9 Description By default the DS224C and NS224 shelves accommodate up to 24 total disks each. However, it is possible to utilize these shelves not fu...Applies to DS224C Disk Shelf NS224 Disk Shelf ONTAP 9 Description By default the DS224C and NS224 shelves accommodate up to 24 total disks each. However, it is possible to utilize these shelves not fully populated. The drive positioning within the shelf is important to ensure correct initialization of the system and automatic disk assignment.