Table of commonly used terms
Terminology Description


Access control list allows the ability to control access rights to computer objects.


Active Directory is the directory service for Windows and is the supported structure of Windows distributed networks. Use Active Directory to locate objects in a network domain, such as users, security policies, storage appliances, and other resources. Active Directory refers both to the directory service and the directory itself.


Also known as a storage pool. A group of physical drives in one or more drive enclosures combined with controller software that represents disk storage capacity as one or more logical drives.


A read-only copy of data copied to media, such as hard drives or magnetic tape, for data protection. A full backup involves copying of all the data to the media. An incremental backup copies only the data that has changed since the last full backup. Backups provide data protection if the system fails as the data is copied and stored on a separate media.


Command-line interface. An interface composed of text-based commands which are used to control operating system functions.


A group of logically integrated storage nodes or systems that enables high availability, does not increase capacity, or distributes processing.


Customer Self Repair indicates that the system may be repaired by the customer. No OEM-trained technician intervention is required.

Data protection

The process of protecting data from getting corrupted or lost.


Distributed File System Namespace is service that allows grouping of shared folders on several distributed file servers into one or more namespaces. Each namespace appears to an end user as a shared folder with a series of subdirectories.

DFS-N also allows the definition of primary and secondary datapaths that allow redirection of users to redundant file servers. In case the primary path fails, users are automatically redirected to one of the standby file servers. This is typically used in combination with DFS-R.


Distributed File System Replication is an application that enables organizations to use synchronized folders for HPE StoreEasy Storage systems on networks that have a limited bandwidth.

It also allows administrators to asynchronously replicate folders between two file servers that are joined to the same Active Directory domain. Used for recovery purposes and in combination with DFS-N to enable a transition between primary and secondary file servers.


Dynamic Host Configuration Protocol is a protocol used for assigning dynamic IP addresses to devices on a network.


Domain Name System is a service for resolving Internet domain names into IP addresses and vice versa.

Fault tolerance

The capacity to cope with internal hardware and software problems without interrupting the data availability of the system.


File Transfer Protocol is a standard Internet protocol for transmitting files between computers on the Internet over TCP/IP connections.


Host bus adapter is a storage controller that enables interconnections between a server and storage devices.


Hard disk drive is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rotating disks (platters) coated with magnetic material.


Initial Configuration Tasks provides a list of actions that must be performed during the initial setup and configuration of an HPE StoreEasy Storage system.


HPE-Integrated Lights Out is the embedded server management technology used in HPE StoreEasy systems. It allows remote system management of the system through a separate, secure network connection (and its own IP address).


Internet Small Computer System Interface. Like an ordinary SCSI interface, iSCSI is standards-based and transmits block-level data between a host computer (such as a server that hosts Exchange or SQL Server) and a target device (such as the HPE StoreEasy Storage System).


Stands for "just a bunch of disks" which are in a storage enclosure that directly attaches to a storage server.


Local area network. A communications infrastructure designed to use dedicated wiring over a limited distance (typically a diameter of less than five kilometers) to connect to multiple intercommunicating nodes.

Logical drive

Logical drives allows you to partition arrays into one or more logical segments. This is done to logically group data or to limit capacity usage for specific use cases. A logical drive also is referred to as a virtual disk.


Logical Unit Number. An LUN results from mapping a logical unit number, port ID, and LDEV ID to a RAID group. The size of the LUN is determined by the emulation mode of the LDEV and the number of LDEVs associated with the LUN.

LUN may span all physical drives within a storage controller subsystem, but cannot span multiple storage controller subsystems. The multiple storage controller subsystems could indicate multiple controllers or external enclosures.

Mount point

A host file system path or directory name where a host volume (device) is accessed.


Network Attached Storage.


Network Configuration Tool.


Network File System. The network protocol used in most Linux/UNIX environments to share folders through mount points.


Network Interface Card. A device that handles communication between a device and other devices on a network.


The primary file system for recent versions of Windows Storage Server provides a full set of features including security descriptors, encryption, disk quotas, and rich metadata, and can be used with Cluster Shared Volumes (CSV) to provide continuously available volumes that can be accessed simultaneously from multiple nodes of a failover cluster.

Physical drive

A physical drive is also known as a physical disk.


Resilient File System. The ReFS is designed to maximize data availability, scale efficiently to large data sets across diverse workloads, and also provide data integrity by means of resiliency to corruption.


Storage Area Network. Consists of a secure high-speed infrastructure of devices which enable one or more storage systems or file controllers to be interconnected to storage arrays using storage switches.


SAS (Serial Attached SCSI) is a point-to-point serial protocol that is used to connect computer-storage devices such as physical drives.

It is also used to refer to SAS drives. SAS drives perform greater performance than SATA with high speed, reliability, and high availability with redundant ports.


Serial Advanced Technology Attachment. A term commonly used to refer to SATA hard drives to a system. SATA hard drives are considered to be a lower cost but less resilient than SAS drives. SATA hard drives can run at 6 Gbps data transfer and can be hot-swappable. Normally SATA drives are not dual ported.


Server Message Block. The SMB Protocol is a network file sharing protocol, and as implemented in Microsoft Windows is known as Microsoft SMB Protocol. Dialect is the set of message packets that defines a particular version of the protocol.


Solid-state Drive is a data storage device where data is stored on interconnected flash memory chips.


A volume is a specified area within a logical drive that has been configured with a file system, such as NTFS, that a computer system can recognize.