Nutanix Certified Professional (NCP) NCP-US Updated Exam

The Objects Storage Network (internal) is a virtual network that connects all CVMs in a cluster that hosts an object store. The Objects Storage Network (External) is a virtual network that connects external clients to an object store. The Objects Public Network (Internal) and (External) are not required for deploying Objects.

https://hyperhci.com/2019/09/18/nutanix-objects-storage-service/

According to Nutanix Objects User Guide1, an object store is a logical grouping of buckets that share a common namespace and configuration settings. A bucket is a container for objects that can be accessed by authorized applications and users using S3-compatible APIs.

Objects Storage provides a simple and scalable S3 compatible storage tier on top of your Nutanix AOS platform2. There is no limit on objects per bucket3, but there is a limit on the total capacity of an object store that can be configured during its creation or modified later4.

Therefore, if an object store is shared with multiple users, it is possible that other users have written to the buckets in the object store and consumed its assigned capacity limit.

After implementing a new subnet for all Nutanix services, it is necessary to rediscover the new target or reestablish file sessions. When Nutanix is configured with a new network subnet, all the services running on the Nutanix cluster need to communicate with each other over the new network. Rediscovering the new target or reestablishing file sessions allows Nutanix to start using the new IP addresses on the new subnet, ensuring that communication between the different Nutanix services is established.

According to Nutanix Support & Insights1, “If you change the IP address of a Controller VM, hypervisor or IPMI interface on any node in a cluster that has iSCSI or Files enabled, you must rediscover the new target or reestablish Files sessions.” This is because “the iSCSI and Files services use static IP addresses for communication.”

https://www.nutanix.com/architecture

 Nutanix volume groups are collections of vDisks that can be exposed to virtual machines or physical hosts using iSCSI protocol. Nutanix volume groups have a shared attribute that allows multiple VMs to access them concurrently.

In the step for attach the volume group to the RAC VMs, he must create it with an attribute of shared = true. This is because if the volume group is not created with shared = true, then only one VM can access it at a time, which would prevent Oracle RAC from working properly.