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    • Why automatic disk copy from external to internal shelf
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Why_automatic_disk_copy_from_external_to_internal_shelf
      As soon as an internal disk is available as a spare (for instance after the replacement of the failed disk), ONTAP will copy the content of the external disk to the internal spare disk automatically. ...As soon as an internal disk is available as a spare (for instance after the replacement of the failed disk), ONTAP will copy the content of the external disk to the internal spare disk automatically. After the failed 0a.00.11 gets physically replaced by a new disk, ONTAP will start copying the data from the external disk 0b.01.1 to the new internal disk 0a.00.11.
    • How to add disks to a new partitioned raidgroup in a partitioned aggregate
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_add_disks_to_a_new_partitioned_raidgroup_in_a_partitioned_aggregate
      Applies to Systems using partitioned disks/SSD's ADPv1 or ADPv2 Aggregate expansion Description When adding non-partitioned spare disks to a partitioned aggregate as a new RAID group, the non-partitio...Applies to Systems using partitioned disks/SSD's ADPv1 or ADPv2 Aggregate expansion Description When adding non-partitioned spare disks to a partitioned aggregate as a new RAID group, the non-partitioned spares are not automatically getting partitioned as expected in the new RAID group Follow the steps provided to partition 1 non-partitioned spare , first This will allow you to add the remaining non-partitioned spares
    • SSD disks can not be added to an aggregate
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/SSD_disks_can_not_be_added_to_an_aggregate
      Applies to FAS2750 ONTAP 9.7P5 Advanced Disk Partitioning (ADP) SAS disks with ADPv1 SSD disks with ADPv2 Issue Unable to share disk 1.0.18. SSD partitioning is not supported (errof: 13001)
    • Cannot create aggregate using partitions in a mixed cluster of FAS and AFF systems
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Cannot_create_aggregate_using_partitions_in_a_mixed_cluster_of_FAS_and_AFF_systems
      Mixed Cluster of AFF and FAS systems Error: command failed: Disk "5.0.1" is partitioned with the "root-data" method, which is not supported on this system since this system is initialized with "root-d...Mixed Cluster of AFF and FAS systems Error: command failed: Disk "5.0.1" is partitioned with the "root-data" method, which is not supported on this system since this system is initialized with "root-data1-data2". Contact technical support for assistance Error: command failed: Disk "5.0.1" is partitioned with the "root-data1-data2" method, which is not supported on this system since this system is initialized with "root-data". Contact technical support for assistance
    • Auto-partitioned disk after Disk Qualification Package update
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Auto-partitioned_disk_after_Disk_Qualification_Package_update
      spare 0a.02.22P1 0a 2 22 SA:B 0 SSD N/A 1819289/3725904896 1819297/3725921280 (not zeroed) spare 0a.02.14 0a 2 14 SA:B 0 SSD N/A 3662580/7500964352 3662830/7501476528 (not zeroed) RAID Disk Device HA ...spare 0a.02.22P1 0a 2 22 SA:B 0 SSD N/A 1819289/3725904896 1819297/3725921280 (not zeroed) spare 0a.02.14 0a 2 14 SA:B 0 SSD N/A 3662580/7500964352 3662830/7501476528 (not zeroed) RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) spare 0a.02.22P3 0a 2 22 SA:A 0 SSD N/A 23956/49062912 23964/49079296 (not zeroed) spare 0a.02.22P2 0a 2 22 SA:A 0 SSD N/A 1819289/3725904896 1819297/3725921280 (not zeroed)
    • ONTAP creates an aggregate with twice the number of specified disks with ADPv2
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ONTAP_creates_an_aggregate_with_twice_the_number_of_specified_disks_with_ADPv2
      RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity 0a.00.0P1 0a 0 0 SA:B 0 SSD N/A...RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity 0a.00.0P1 0a 0 0 SA:B 0 SSD N/A 7320700/14992794624 7320708/14992811008 (fast zeroed) parity 0d.01.0P1 0d 1 0 SA:A 0 SSD N/A 7320700/14992794624 7320708/14992811008 (fast zeroed) data 0a.00.1P1 0a 0 1 SA:B 0 SSD N/A 7320700/14992794624 7320708/14992811008 (fast zeroed) data 0d.01.1P1 0d 1 1 SA:A 0 SSD N/A 7320700/14992794624 732…
    • ADP partition does not follow HWU rule
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ADP_partition_does_not_follow_HWU_rule
      Applies to ONTAP 9.14.1P6 ADP (Advanced Drive Partitioning) According to Fusion(fusion.netapp.com) and HWU(hwu.netapp.com), if the total internal disk count is 10 for A150 HA cluster, then the root ag...Applies to ONTAP 9.14.1P6 ADP (Advanced Drive Partitioning) According to Fusion(fusion.netapp.com) and HWU(hwu.netapp.com), if the total internal disk count is 10 for A150 HA cluster, then the root aggregate of each node will select 5 partitioned disks(P3): 2 for parity disks, 2 for data disks, and remain 1 will be used as a spare disk. However, when creating partitioned disks via Boot menu > 9 > 9a > 9b, ONTAP automatically creates the root aggregate with 2 partitioned disks and 3 data disks.
    • How to migrate to Advanced Disk Partitioning (ADP)?
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_migrate_to_Advanced_Disk_Partitioning
      Keeping that in mind, this article is written to cover the steps required to migrate the root aggregate from whole drives to ADPv1 (or ADPv2), as well as the steps to migrate the root aggregate from A...Keeping that in mind, this article is written to cover the steps required to migrate the root aggregate from whole drives to ADPv1 (or ADPv2), as well as the steps to migrate the root aggregate from ADPv1 to ADPv2. For creating a new HA pair refer to How to repurpose an HA Pair with ONTAP 9 or How to use a partial set of installed disks for Advanced Disk Partitioning (ADP) and What are the rules for Advanced Disk Partitioning?
    • Can I manually partition unassigned disks if internal shelf is already partitioned in ADP?
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Can_I_manually_partition_unassigned_disks_if_internal_shelf_is_already_partitioned_in_ADP
      It is possible to partition the drives manually, however the procedure is available for recovery purposes and is not supported on new shelves or disks deployment. Disk drives have to be owned - more i...It is possible to partition the drives manually, however the procedure is available for recovery purposes and is not supported on new shelves or disks deployment. Disk drives have to be owned - more information and commands available in ONTAP 9 Documentation Center - Assign ownership of a disk to a system If manual partitioning of a disk is required, please contact NetApp Technical Support for assistance and reference this article.
    • Failed to assign disks. Reason: Partition not found on disk "x.x.xx"
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Failed_to_assign_disks_Reason__Partition_not_found_on_disk_x_x_xx
      Applies to ADPv2 ONTAP 9 Issue Unable to add non-partitioned spare SSD to aggregate cluster1::*> disk assign -data1 true -owner node1 -disk 1.0.xx Error: command failed: Failed to assign disks. Reason...Applies to ADPv2 ONTAP 9 Issue Unable to add non-partitioned spare SSD to aggregate cluster1::*> disk assign -data1 true -owner node1 -disk 1.0.xx Error: command failed: Failed to assign disks. Reason: Partition not found on disk "1.0.xx".
    • Why HA pairs have different number of drives for the root aggregate?
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Why_HA_pairs_have_different_number_of_drives_for_the_root_aggregate
      ONTAP decides the Root Data Data partition and disk configuration following the NetApp Hardware Universe ADP Root Partition Configuration section during node initialization. The root aggregate for the...ONTAP decides the Root Data Data partition and disk configuration following the NetApp Hardware Universe ADP Root Partition Configuration section during node initialization. The root aggregate for the first one will be 8 data disks + 2 parity disks + 2 spares in a RAID-DP configuration, so 12 disks twice in the HA pair. The root aggregate for the second one will be 6 data disks + 2 parity disks + 1 spare in a RAID-DP configuration, so 9 disks twice in the HA pair.