nt2 (prefi)

Elastic volume service (EVS)

Offers scalable block storage for cloud servers

Distributed file system (DFS)

Hierarchical file system whose physical storage resources are connected to local nodes through compute networks

IOPS

Number of read/write operations performed

Throughput

The amount of data read from and written

Read/write I/O latency

Minimum interval between two consecutive read/write operations

Extreme SSD

Super fast disks for workloads

Ultra-high I/O

High performance disks excellent for enterprise mission-critical services

General purpose SSD

Cost-effective disks designed for enterprise applications

High I/O

Disks suitable for commonly accessed workloads

Virtual block device

Default EVS device type

Small computer system interface (SCSI)

Allow the server OS to directly access the underlying storage media

Shared EVS disks

Block storage devices that support concurrent read/write operations and can be attached to  multiple servers

System disk encryption

Depends on the image selected during the server creation

Data disk encryption

Depends on their data sources

Cloud disk backup

Allows you to create backups for your EVS disks while servers are running

Snapshot

Rapidly save the disk data at specified time points/ create new disks on the same disk

Backup

saves data another copy in OBS/different location

Three-copy redundancy

Guarantee data reliability

Object storage service

scalable service that provides secure, reliable, and cost-effective cloud storage for massive amounts of data.

Bucket

Container for storing objects in OBS

Object

Fundamental storage unit in OBS

Key

Specifies the name of an object

Metadata

Set of key-value pairs the describes and object

Data

Refers to content of an object

Scalable file service (SFS)

Provides scalable, high-performance shared file storage

Network file system

Allows different computers and operating systems to share data over a network

Common internet file system (CIFS)

Used for network file access

File system

Provides users with shared file storage service

Portable operating system interface (POSIX)

Set of interrelated standards to define api for software compatible

Dynamic host configuration protocol (DHCP)

LAN network protocol/ server controls and IP address range