Nutanix NCP-US flashcards
Nutanix NCP-US · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Nutanix Unified Storage
- A single Nutanix platform delivering Files (SMB/NFS), Objects (S3-compatible), and Volumes (iSCSI block) on the AOS Distributed Storage Fabric, managed through Prism Central.
- Distributed Storage Fabric
- AOS layer that stripes data across CVMs and protects it with replication factor or erasure coding instead of traditional RAID, underlying all NUS services.
- Data Services IP
- A virtual IP that fronts Files and Objects client access, allowing clients to reach services without targeting individual Controller VM addresses.
- File Server VM
- A dedicated VM that serves SMB and NFS shares in Nutanix Files; file servers scale out by adding FSVMs to the same namespace.
- Distributed Share
- A Files share type where multiple File Server VMs serve one namespace, providing scale-out performance and availability for large workloads.
- Home Share
- A Files share type that automatically creates a per-user directory on login, giving each authenticated user a private SMB home folder.
- NFS Kerberos
- NFSv4.1 security flavors krb5, krb5i, and krb5p providing authentication, integrity, and privacy respectively, replacing IP-based trust for NFS exports.
- Share Quota
- A limit enforced by the FSVM on total share usage or per user/group usage, preventing any single share or identity from exhausting capacity.
- SMB Signing
- A Files setting that cryptographically signs SMB traffic to prevent tampering and man-in-the-middle attacks; it can be enforced per share.
- Object Store
- The Nutanix Objects deployment consisting of Object Storage VMs that provide an S3-compatible API for bucket and object operations.
- Access Key
- An access key ID paired with a secret access key used by S3 clients to sign requests with SigV4 when authenticating to a Nutanix Objects endpoint.
- Bucket Policy
- A JSON document attached to an Objects bucket that grants or denies principals specific S3 actions on bucket or object ARNs.
- Object Locking
- A WORM feature in Nutanix Objects that prevents object deletion or overwrite for a retention period; it requires bucket versioning to be enabled.
- S3 Compatibility Scope
- Nutanix Objects supports core S3 operations such as CRUD, multipart upload, presigned URLs, and ACLs, but not every advanced AWS S3 API.
- Volume Group
- A Nutanix collection of vDisks presented as iSCSI LUNs to AHV VMs or external hosts, with initiator allowlists and optional CHAP.
- IQN
- An iSCSI Qualified Name that uniquely identifies an initiator; it must be added to a Volume Group's allowlist before the host can access LUNs.
- CHAP Authentication
- A challenge-handshake protocol used on Nutanix Volumes to authenticate iSCSI initiators, configurable as one-way or mutual with matching credentials.
- iSCSI Target Portal
- The CVM IP address and TCP port 3260 that a host uses for iSCSI discovery and login to Nutanix Volumes LUNs.
- Multipath I/O
- A host configuration using multiple iSCSI sessions across CVMs to improve availability and aggregate throughput for Nutanix Volumes.
- Nutanix Snapshot
- A space-efficient, metadata-based point-in-time copy of a VM or volume that copies blocks only when they change after the snapshot.
- Protection Domain
- A Prism Element grouping of VMs and volume groups that defines snapshot schedules, replication targets, and retention for data protection.
- Async Replication
- A data protection mode that ships snapshots to a remote cluster at the configured RPO interval, allowing recovery after a site failure.
- Crash-Consistent Snapshot
- A snapshot capturing the state of a VM or volume without guest quiescing; applications may need recovery, unlike application-consistent snapshots using VSS.
- Nutanix Leap
- A Prism Central disaster recovery service that orchestrates failover and failback across sites using recovery plans and runbooks.
- Prism Central Metrics
- Dashboards reporting cluster and per-VM IOPS, latency, throughput, and capacity, used to identify performance bottlenecks across NUS services.
- NCC
- Nutanix Cluster Check, a diagnostic tool that collects health checks and logs used for troubleshooting and support case escalation.
- FSVM Bottleneck
- A Files performance issue where File Server VM CPU or network saturation limits share throughput, visible as elevated share latency in Prism.
- S3 403 Error
- An Objects access-denied response typically caused by an incorrect access key, missing bucket policy permission, or signature mismatch.
- Prism Central RBAC
- Role-based access control binding AD or LDAP users and groups to roles such as Prism Admin or Viewer, enforcing least privilege across NUS.
- Self-Encrypting Drives
- SEDs that encrypt data at rest within the drive, managed by the Nutanix cluster or an external key management server for compliance.
- Audit Log
- A Prism Central record of administrative actions used for compliance and forensic review of configuration and access changes.
- SMB 1.0 Disablement
- A security hardening step removing the deprecated, insecure SMB 1.0 protocol so Files shares accept only SMB 2.1 and 3.x clients.