ANSWERS | CERTIFIED
/. Node - Answer-✅The Foundation Unit for the Nutanix Cluster. Each one runs a
standard hypervisor and contains processors, memory and local storage, which is made
of both SSD and HDD Storage.
/.Block - Answer-✅A Nutanix rack-able Unit containing up to 4 nodes.
/.Cluster - Answer-✅The set of Nutanix blocks and nodes that forms the Nutanix
Distributed File system (NDFS). A minimum of 3 nodes to operate.
/.Storage Tiers - Answer-✅utilize MapReduce tiering technology to ensure that data is
intelligently placed in the optimal storage tier - SSD or HDD to yield the fastest possible
performance. The most frequently accessed is available in SSD or cache tier and is
demoted into higher capacity HDD tier as data becomes cold.
/.Storage Pool - Answer-✅A group of physical storage devices including SSD and HDD
devices for the cluster. The storage pool can span multiple Nutanix nodes and is
expanded as the cluster scales.
/.Container - Answer-✅Logical segmentation of the storage pool and contains a group
of VMs or files (vDisks). Some Configuration options such as compression and
deduplication configured at the container level and applied at the VM/File level. Usually
are mapped to hosts as shared storage in the form of an NFS datastore or an SMB
share.
/.Datastore - Answer-✅A logical container for files necessary for VM operations.
Nutanix supports both ISCSI and NFS protocols on vSPhere and SMB protocol on
Hyper-V.
/.vDisk - Answer-✅A vDisk is a subset of available storage within a container that
provides storage to virtual machines.
/.Oplog - Answer-✅A write cache on a faster, more expensive storage tier (SSD).
/.Redundancy Factor - Answer-✅The number of nodes plus 1 that the cluster can
tolerate being down at one time. By default, Nutanix clusters have a redundancy factor
of 2, which means that they can tolerate 1 node being down. They are configurable to
redundancy factor 3 to enable tolerating 2 nodes being down.
, /.Replication Factor - Answer-✅The number of copies of data kept by a container.
/.Controller VM (CVM) - Answer-✅A Nutanix VM that manages storage and other
cluster functions on a node.
/.Protection Domain - Answer-✅A group of VMs to be backed up locally on a cluster or
replicated on the same schedule to one or more clusters. May be associated with
remote sites. Names must be unique across sites. A VM can be in at most one.
/.A protection domain on a cluster is in one of two modes - Answer-✅Active= Manages
live VMs; makes, replicates, and expires snapshots. Inactive= Receives snapshots from
a remote cluster.
/.Consistency Group - Answer-✅A subset of VMs in a protection domain. (configured
when creating a protection domain.) All VMs within a this group for that protection
domain will be snapshotted in a crash-consistent manner. For all VMs in a this group, a
snapshot creates one snapshot for all VMs in the group.
/.Snapshot - Answer-✅A read-only copy of the state and data of a VM at a point in time.
/.Time Stream - Answer-✅A set of snapshots that are stored on the same cluster as the
source VM.
/.Remote Site - Answer-✅A separate cluster used as a target location to replicate
backed up data. You can configure one or more for a cluster
/.Replication - Answer-✅The process of asynchronously copying snapshots from one
cluster to one or more remote site. Several scenarios are supported.
/.Schedule - Answer-✅A Protection Domain property of a that specifies the intervals to
take snapshots and how long the snapshots should be retained. (Set up when
configuring a protection domain.) Optionally specifies which remote site(s) to replicate
to.
/.What is the difference between a storage pool and a storage container - Answer-✅A
storage pool is a logical group of physical disks, a storage container is a subset of the
pool.
/.What is deduplication - Answer-✅A process that involves sharing identical VM data for
better performance and space savings.
/.The use of a parity calculation to maintain data redundancy and optimize space
savings is called - Answer-✅Erasure coding.