NetApp StorageGRID Webscale 10.4 Installation And Maintenance Manual page 58

58 | StorageGRID Webscale 10.4 Appliance Installation and Maintenance Guide
DC
Data Center site.
DDS service
Distributed Data Store. The DDS service interfaces with the distributed key-value store
and manages object metadata. It distributes metadata copies to multiple instances of the
distributed key-value store so that metadata is always protected against loss.
distributed key value store
Data storage and retrieval that unlike a traditional relational database manages data across
grid nodes.
DNS
Domain Name System.
enablement layer
Used during installation to customize the Linux operating system installed on each grid
node. Only the packages needed to support the services hosted on the grid node are
retained, which minimizes the overall footprint occupied by the operating system and
maximizes the security of each grid node.
Fibre Channel
A networking technology primarily used for storage.
Grid ID signed text block
A Base64 encoded block of cryptographically signed data that contains the grid ID. See
also, provisioning .
grid node
The basic software building block for the StorageGRID Webscale system, for example,
Admin Node or Storage Node. Each grid node type consists of a set of services that
perform a specialized set of tasks.
grid task
System-wide scripts used to trigger various actions that implement specific changes to the
StorageGRID Webscale system. For example, most maintenance and expansion
procedures involve running grid tasks. Grid tasks are typically long-term operations that
span many entities within the StorageGRID Webscale system. See also,
Block .
ILM
Information Lifecycle Management. A process of managing content storage location and
duration based on content value, cost of storage, performance access, regulatory
compliance, and other factors. See also,
LACP
Link Aggregation Control Protocol. A method for bundling two or more physical ports
together to form a single logical channel.
LAN
Local Area Network. A network of interconnected computers that is restricted to a small
area, such as a building or campus. A LAN can be considered a node to the Internet or
other wide area network.
latency
Time duration for processing a transaction or transmitting a unit of data from end to end.
When evaluating system performance, both throughput and latency need to be considered.
See also, throughput .
Admin Node and storage pool .
Task Signed Text