Skip to main content
NetApp Knowledge Base

Search

  • Filter results by:
    • View attachments
    Searching in
    About 7 results
    • How to calculate the non-guaranteed volume for thin provisioning space on df
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/How_to_calculate_the_non-guaranteed_volume_for_thin_provisioning_space_on_df
      Applies to ONTAP 9 Data ONTAP 7-mode Thin provisioned volumes (guarantee = none) Description This article describes how thin provisioned (guarantee=none) volume space is used, and why the command outp...Applies to ONTAP 9 Data ONTAP 7-mode Thin provisioned volumes (guarantee = none) Description This article describes how thin provisioned (guarantee=none) volume space is used, and why the command output of df, df -A and aggr show_space differs. Note: These calculation results can vary due to active I/O transfers.
    • How to free-up space on FlexVol with LUNs?
      https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/How_to_free-up_space_on_FlexVol_with_LUNs
      Applies to AFF-A220 ONTAP 9.7P6 CLUSTER-MODE Description After a resizing of the FlexVol, LUN still shows 100% used.
    • E-series Thin volume repository becomes full even though Expansion policy set as Automatic
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/E-series_Thin_volume_repository_becomes_full_even_though_Expansion_policy_set_as_Automatic
      E-series Thin volume repository is full even though Expansion policy set as Automatic Thin Volume: Vol_name Used repository capacity: 700.000 GB (100%) Remaining repository capacity: 0.000 MB (0%) Sto...E-series Thin volume repository is full even though Expansion policy set as Automatic Thin Volume: Vol_name Used repository capacity: 700.000 GB (100%) Remaining repository capacity: 0.000 MB (0%) Storage Array Profile on volume shows Volume name: Vol_name Volume status: Full Thin provisioned: Yes Reporting policy: Thin Virtual capacity: 5,000.000 GB Repository for thin provisioning Volume capacity allocated to repository: 14% Expansion policy: Automatic Maximum capacity: 5,000.000 GB
    • Can thin provisioning affect performance on a NFS volume?
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Can_thin_provisioning_affect_performance_on_a_NFS_volume
      Applies to ONTAP 9 Answer No, as NFS performs the same on all Unix systems thin or thick However, On ESXi NFS datastores, it is worth noting that thick volumes have eager and lazy zero settings The ze...Applies to ONTAP 9 Answer No, as NFS performs the same on all Unix systems thin or thick However, On ESXi NFS datastores, it is worth noting that thick volumes have eager and lazy zero settings The zeroing happens when a write is sent to the storage, inducing a performance penalty as it induces a block freeing NFS call It is recommended to use thin provisioning from ONTAP to ensure best performance and space savings, along with VAAI Additional Information VMware Blog on VAAI
    • Failed E-Series thin volumes resulting in recursive controller(s) reboot
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/Failed_E_Series_thin_volumes_resulting_in_recursive_controller_s_reboot
      Potentially, one or more failed thin provisioned volumes are reported in SANtricity management application. Controller(s) is/are recursively rebooting due to a software page fault exception. rbx = 0xf...Potentially, one or more failed thin provisioned volumes are reported in SANtricity management application. Controller(s) is/are recursively rebooting due to a software page fault exception. rbx = 0xffff800020856d30 rdx = 0xffff800020857a50 rcx = 0x0000000000000000 rax = 0xffff800020857a50 r11 = 0xffff80002069dfe0 r10 = 0x0000000000000000 r9 = 0x0000000000000000 r8 = 0x0000000000000200 rbx = 0xffff8000516260c0 rdx = 0x0000000000000005 rcx = 0x0000000000000800 rax = 0x0000000000000000
    • How to convert a volume or LUN from thick to thin provisioned
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/How_to_convert_a_volume_or_LUN_from_thick_to_thin_provisioned
      Converting volume or LUN from thick to thin LUN in ONTAP 9 or above.
    • Are there any Storage Efficiency best practices for Cloud Volumes ONTAP?
      https://kb.netapp.com/on-prem/ontap/DM/Efficiency/Efficiency-KBs/Are_there_any_Storage_Efficiency_best_practices_for_Cloud_Volumes_ONTAP
      Applies to NetApp Cloud Volumes ONTAP ONTAP 9 Answer Most of the same storage efficiency features of on-premises ONTAP are available, and the same best practices are applicable in the Cloud Aggregate ...Applies to NetApp Cloud Volumes ONTAP ONTAP 9 Answer Most of the same storage efficiency features of on-premises ONTAP are available, and the same best practices are applicable in the Cloud Aggregate level inline and background deduplication are not available in Cloud Volumes ONTAP Additional Information Storage Efficiency How to maximize storage efficiency on All Flash FAS systems running ONTAP 9.x