Which two options can NDB leverage to refresh a database clone? (Choose two.)
NDB can leverage snapshots and transaction logs to refresh a database clone to the latest state of the source database. Snapshots are point-in-time copies of the database that are stored on the Nutanix cluster. Transaction logs are records of the changes made to the database after the snapshot was taken. NDB can use either snapshots or transaction logs, or a combination of both, to refresh a database clone. Cerebro logs and templates are not used for refreshing database clones. Cerebro logs are used for log catch-up operations, which are different from refresh operations. Templates are used for provisioning new databases, not for refreshing existing ones.Reference:
Nutanix Database Management & Automation (NDMA) course, Module 4, Lesson 4.3 - Refreshing Clones
Nutanix Support & Insights, Nutanix NDB User Guide v2.5, Clone Database Management
An administrator is trying to register a database server VM with NDB.
Which file types will prevent the registration from being successful if located in the C:\ drive?
Page files are temporary files that Windows uses to store data that does not fit in the physical memory. Page files can interfere with the registration of a database server VM with NDB, as they can cause errors or performance issues. Therefore, page files should be located in a separate drive or partition from the C:\ drive, where the NDB agent and other files are installed. System, database, and backup files do not prevent the registration of a database server VM with NDB, as long as they are not corrupted or incompatible with the NDB requirements.Reference:
An administrator needs to add a stretched VLAN across two clusters in NDB
Which two prerequisites should be met prior to completing this action? (Choose two.)
A stretched VLAN is a virtual network that spans across multiple Nutanix clusters and allows the communication between VMs on different clusters using the same subnet. A stretched VLAN can be used to provide high availability and load balancing for NDB components, such as HAProxy VMs, that require a virtual IP address (VIP) to be accessible from any cluster. To add a stretched VLAN across two clusters in NDB, the administrator needs to meet two prerequisites: the VLAN must be static and both clusters must be registered in NDB. A static VLAN is a VLAN that is manually created and configured by the administrator, as opposed to an IPAM VLAN that is automatically created and managed by NDB. A static VLAN can be added to a stretched VLAN in NDB, while an IPAM VLAN cannot. Both clusters must be registered in NDB before adding a stretched VLAN, as NDB needs to have the information and access to the clusters and their networks. The administrator can register the clusters in NDB using the Prism Element details, agent network configuration, and storage container information. The other option, Nutanix Cluster Management, is not a prerequisite for adding a stretched VLAN in NDB. Nutanix Cluster Management is a feature that allows the administrator to manage multiple Nutanix clusters from a single NDB UI, such as creating or deleting clusters, adding or removing nodes, or performing cluster operations. Nutanix Cluster Management is not required for adding a stretched VLAN, as the VLANs are created and configured in Prism Element, not in NDB.Reference:
[Configuring a Virtual NIC to Operate in Access or Trunk Mode - Nutanix], Section: Creating a vNIC in Access or Trunk Mode
An administrator needs to migrate a large 1/0-intensive database that doesn't support multi-disk layout.
How should the storage be provisioned with Era to support the database while optimizing performance?
