HPE Ezmeral Data Fabric 6.2 is In Maintenance and transitions to "End of Maintenance" in June 2024. Please see the latest documentation.

About Release 6.2
This site contains documentation for HPE Ezmeral Data Fabric release 6.2 including installation, configuration, administration, and reference content, as well as content for the associated bundled ecosystem components and drivers.
6.2 Installation
This section contains information about installing and upgrading HPE Ezmeral Data Fabric software. It also contains information about how to migrate data and applications from an Apache Hadoop cluster to a HPE Ezmeral Data Fabric cluster.
6.2 Data Fabric
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
- HPE Ezmeral Data Fabric File Store
  HPE Ezmeral Data Fabric File Store is a distributed file system for data storage, data management, and data protection. File Store supports mounting and cluster access via NFS and FUSE-based POSIX clients (basic, platinum, or PACC) and also supports access and management via HDFS APIs.
  - File System
    Discusses the features of the Data Fabric distributed file system and compares it to the Hadoop Distributed File System (HDFS).
  - Direct Access NFS
    Describes the data-fabric direct access file system.
  - POSIX Clients
    Describes the usage of data-fabric POSIX clients.
  - Copying Data from Apache Hadoop to a Data Fabric Cluster
    Describes the procedure to copy data from an Apache Hadoop to a Data Fabric cluster.
  - PACC
    This container gives you seamless access to HPE Ezmeral Data Fabric cluster services.
  - HPE Ezmeral Data Fabric Control System
    Provides a brief description of the HPE Ezmeral Data Fabric Control System.
  - Using HPE Ezmeral Data Fabric Monitoring (Spyglass Initiative)
    HPE Ezmeral Data Fabric Monitoring (part of the Spyglass initiative) provides the ability to collect, store, and view metrics and logs for nodes, services, and jobs/applications.
- HPE Ezmeral Data Fabric Database
  HPE Ezmeral Data Fabric Database is an enterprise-grade, high-performance, NoSQL database management system that you can use for real-time, operational analytics.
- HPE Ezmeral Data Fabric Streams
  HPE Ezmeral Data Fabric Streams brings integrated publish and subscribe messaging to the Data Fabric Converged Data Platform.
- Kubernetes Interfaces for Data Fabric
  This section describes the Kubernetes Interfaces for Data Fabric, which include the Container Storage Interface (CSI) driver for multiple container-orchestration systems, and the FlexVolume driver for Kubernetes.
- Cluster Management
  Provides a synopsis of the various cluster components and their management.
- Performance
  Describes how to tune system performance, manage RDMA, and optimize CLDB tables.
- Security
  Provides an overview of the data-fabric security features.
- YARN
- Client Connections
  The following sections describe how a client connects to local and remote data-fabric clusters.
6.2 Administration
This section describes how to manage the nodes and services that make up a cluster.
6.2 Development
This section contains information related to application development for Ezmeral ecosystem components and HPE Ezmeral Data Fabric products, including the file system, Database (Key-Value and JSON), and Event Streams.
Other Docs
This section contains release-independent information, including: Installer documentation, Ecosystem release notes, interoperability matrices, security vulnerabilities, and links to other data-fabric version documentation.
Glossary
Definitions for commonly used terms in MapR Converged Data Platform environments.

POSIX Clients

Describes the usage of data-fabric POSIX clients.

The data-fabric filesystem supports direct and secure access to data using loopback NFS or FUSE-based POSIX clients.

The loopbacknfs POSIX client allows app servers, web servers, and other client nodes and apps to read and write data directly and securely to a data-fabric cluster, with transmitted data compressed in both directions. The data-fabric single-user mapr-loopbacknfs licenses gives secure access to one or more clusters, which allows native client applications to run securely on cluster data.

The FUSE-based POSIX basic and platinum clients run as a user space process to connect to one or more data-fabric clusters and allow app servers, web servers, and applications to read and write data directly and securely to the data-fabric clusters like a Linux filesystem. Each client implies a specific data-fabric filesystem throughput optimization of n/G per second.

Both loopbacknfs and FUSE-based POSIX clients can be installed on supported Linux and Ubuntu distributions and require direct network access to all data-fabric cluster nodes. They connect to the data-fabric cluster directly (no NFS gateway) to read and write data securely.