Creating a datastore

You can create a datastore using the NetApp Element Management extension point.

Before you begin

About this task

Because datastores are created using the highest VMFS version supported by the selected ESXi host, all cluster members should run the same version of vSphere and ESXi to avoid VMFS compatibility issues.
Note: If you want to use QoSSIOC service with datastores, you must first configure settings on the mNode Settings page from the NetApp Element Configuration extension point.


  1. Select NetApp Element Management > Management.
    Note: If two or more clusters are added, ensure that the cluster you intend to use for the task is selected in the navigation bar.
  2. From the Datastore page, click Create Datastore.
  3. In the Create Datastore dialog box, enter a name for the datastore.
    Tip: Use a unique name for each datastore in a data center. For multiple cluster or vCenter Server environments, use descriptive naming best practices.
  4. Click Next.
  5. Select one or more required hosts for the datastore.
    Note: You need at least one connected host before you can create a new datastore. If your host has multiple initiators, select an initiator or the host to select all initiators. If you are using vCenter Linked Mode, only hosts available to the vCenter Server to which the cluster is assigned are available to select.
  6. Click Next.
  7. In the Configure Volume pane, select an existing volume and proceed to the next step, or create a new volume for the new datastore:
    1. Enter a name for the volume that backs the datastore.
    2. Select a user account from the account drop-down list.
      Note: You need at least one existing user account before you can create a new volume.
    3. Enter the total size of the volume you want to create.
      Note: The default volume size selection is in GB. You can create volumes using sizes measured in GB or GiB:
      • 1GB = 1 000 000 000 bytes
      • 1GiB = 1 073 741 824 bytes
      Note: By default, 512 byte emulation is set to ON for all the new volumes.
    4. In the Quality of Service area, do one of the following:
      • Under Policy, select an existing QoS policy, if available.
      • Under Custom Settings, set customized minimum, maximum, and burst values for IOPS or use the default QoS values.
      Attention: After you enable datastore QoSSIOC settings, any QoS settings at the volume level are overridden.
      Attention: Volumes that have a Max or Burst IOPS value greater than 20,000 IOPS might require high queue depth or multiple sessions to achieve this level of IOPS on a single volume.
  8. Click Next.
  9. Configure authorization type for host access by selecting one of the following:
    • Use Volume Access Group
    • Use CHAP
    Note: Use the volume access group authorization type to explicitly limit which initiators can see volumes. Use CHAP for secure secret-based access with no limits on initiators.
  10. Click Next.
  11. If you selected Use Volume Access Group, configure the volume access groups for the selected hosts.
    The volume access groups listed in Required by Selected Initiators are already associated with one or more of the host initiators you selected in an earlier step.
    1. Select additional volume access groups or create new ones to associate with available initiators:
      • Available: Other volume access group options in the cluster.
      • Create New Access Group: Enter the name of the new access group and click Add.
    2. Click Next.
    3. In the Configure Hosts' Access pane, associate available host initiators (IQN or WWPN) with the volume access groups you selected in the previous pane. If a host initiator is already associated with a volume access group, the field is read-only for that initiator. If a host initiator does not have a volume access group association, select an option from the drop-down list next to the initiator.
    4. Click Next.
  12. If you want to enable QoSSIOC automation, click the Enable QoS & SIOC check box to select it and then configure the QoSSIOC settings.
    Note: If the QoSSIOC service is not available, you must first configure settings on the mNode Settings page from the NetApp Element Configuration extension point.
    1. Select Enable QoS & SIOC.
    2. Configure the Burst Factor.
      Note: The burst factor is a multiple of the IOPS limit (SIOC) setting for the VMDK. If you change the default, make sure to use a burst factor value that will not exceed the maximum burst limit for an Element volume when the burst factor value is multiplied by the IOPS limit for any VMDK.
    3. Optional: Select Override Default QoS and configure the settings.
      Note: If the Override Default QoS setting is disabled for the datastore, the Shares and Limit IOPS values are automatically set based on the default SIOC settings of each VM.
      Tip: Do not customize the SIOC share limit without also customizing the SIOC IOPS limit.
  13. Click Next.
  14. Confirm the selections and click Finish.
  15. You can use task monitoring in vSphere to view the progress of the task. Refresh the view if the datastore does not appear in the list.