data storage - business Flashcards
cloud storage
- reduced hardware costs, + accessibility, + flexibility
- offers: automated backup, disaster recovery, data encryption, better security
- no need for additional data storage devices
- offers difference service models
cloud storage stats
scalable, good for large operations, increasingly popular
block storage
- breaks data into blocks, stores them independently w/ unique identifier
- used in computer systems, data centers, or cloud-based storage
- works with file systems from OS
- operates at lower level, does not have built-in directories or files
block storage stats
offers flexibility + scalability, is long-term; fast + efficient, spread across multiple environments
DAS
direct-attached storage:
- directly attached to server or computer, using external hard drives; SSDs, HDDs
DAS stats
cheap, for high performance + small-scale; convenient, limited scalability, difficult to manage in larger-scale operations
NAS
network-attached storage:
- connects to network, file-level data access to multiple clients
- needs network file system software to access shared files
NAS stats
- high scalability + centralized data backup and recovery
- small-medium businesses; hardware purchased by business, setup may be expensive
- needs network file system(NFS) software to access shared files
SAN
storage area network:
- storage architecture that connects servers + storage devices through network
- block level
- hard to establish + expensive to maintain
- fiber channel needed, as used for high-performance computing, analytics, visualization
SAN stats
high performance, scalability, reliability, good for large-scale apps
object storage
- modern storage architecture that manages data as objects
- object = data, metadata, unique ID
- good for large-scale unstructured data; multimedia, email archives, social media content
object storage stats
high scalability, durability, accessibility
