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    • https://kb.netapp.com/Cloud/OpenStack/Open_stack__Does_cinder_driver_allows_to_extend_the_in_use_volumes
      Currently, it is not possible to extend the size of a root volume that is attached to a server and uses a NetApp ONTAP backend When attempting to extend a root volume, the following event is seen in C...Currently, it is not possible to extend the size of a root volume that is attached to a server and uses a NetApp ONTAP backend When attempting to extend a root volume, the following event is seen in Cinder scheduler.log: It is possible to extend a in-use root volume by toggling the volume to 'available'. The procedure for doing so is: Refer to this article: Redhat has a solution for this issue documented in "How to extend attached/in-use volume in Openstack? "
    • https://kb.netapp.com/Cloud/OpenStack/OpenStack__Does_Cinder_volume_with_NFS_driver_support_space_reclaimation
      Applies to OpenStack Cinder volume driver A Cinder volume corresponds to a file within the NFS share provided by a FlexVol. The space is consumed when you write actual data in the Cinder volume. ONTAP...Applies to OpenStack Cinder volume driver A Cinder volume corresponds to a file within the NFS share provided by a FlexVol. The space is consumed when you write actual data in the Cinder volume. ONTAP is not able to read the filesystem within the Cinder volume to tell if a block is in use or not, so removing a file inside the Cinder volume won't free space. Only when you delete the Cinder volume, the corresponding file within the NFS share will be deleted, and the space will be reclaimed.
    • https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/E-Series__Unable_to_integrate_array_into_Cinder_OpenStack
      Applies to E28xx E-Series hardware platform OpenStack Cinder SANtricity® Web Services Proxy Issue When a volume is created on the CBIS infrastructure, it takes a long time to get uploaded to the E-Ser...Applies to E28xx E-Series hardware platform OpenStack Cinder SANtricity® Web Services Proxy Issue When a volume is created on the CBIS infrastructure, it takes a long time to get uploaded to the E-Series E2800. The volume creation process executes in two steps: Caching the image file from which the volume is created on Cinder (/var/lib/cinder/conversion) The cached file is uploaded to the E-Series array. This second step is very slow or does not complete or complete with failures.
    • https://kb.netapp.com/Cloud/OpenStack/OpenStack__Cinder_driver_failed_create_a_volume_with_error_NetApp_API_failed
      Applies to OpenStack Cider Driver Issue Cinder driver failed to create a volume with following error. ERROR oslo_service.periodic_task req-ab74f3b2-14dd-4e64-909e-54868bceb23c NaApiError: NetApp API f...Applies to OpenStack Cider Driver Issue Cinder driver failed to create a volume with following error. ERROR oslo_service.periodic_task req-ab74f3b2-14dd-4e64-909e-54868bceb23c NaApiError: NetApp API failed. Reason - Unexpected error:unknown
    • https://kb.netapp.com/Cloud/OpenStack/Cinder_lun_unmap_custom_igroup_Error_unmapping_LUN_Code__13115_Invalid_value_specified_for_initiator_group_element_within_lun_unmap
      OpenStack Cinder driver Custom igroup Any volume operation with the cinder NetApp driver is not able to unmap the LUN iSCSI and FC protocol from the pre-existing igroup fails with below error: 2022-11...OpenStack Cinder driver Custom igroup Any volume operation with the cinder NetApp driver is not able to unmap the LUN iSCSI and FC protocol from the pre-existing igroup fails with below error: 2022-11-12 11:31:04.947 16260 WARNING cinder. client_ base [req-ab91ed- dd74-4f8d- a342-e40df4f7 06 62153334696 2aed5a39c31d227 72 8ff64c0ec5443 0aabbef286dbf4a 69 - default default] Error unmapping LUN. Code :13115, Message: Invalid value specified for "initiator-group" element within "lun-unmap": "".
    • https://kb.netapp.com/Cloud/OpenStack/Cinder_driver_does_not_properly_initialize_in_Openstack_Wallaby
      Cinder driver does not properly initialize, with errors in /var/log/cinder/volume.log like: 2021-11-24 12:06:44.260 26 ERROR cinder.volume.manager [req-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx - - - - -] ...Cinder driver does not properly initialize, with errors in /var/log/cinder/volume.log like: 2021-11-24 12:06:44.260 26 ERROR cinder.volume.manager [req-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx - - - - -] Failed to initialize driver.: TypeError: can only concatenate str (not "NoneType") to str