Module 3: Storage Systems, Storage Networks And Protocols

Question 1

Types of storage systems

Answer 1

Block Storage - Breaks up data into singular blocks of data and then stores these blocks as separate pieces of data.
File Storage - Stores data in the form of files and provides file sharing capabilities to clients
Object Storage - stores data in a special form called objects
Unified Storage - Combines block and file storage in a single platform.

Question 2

Object storage

Answer 2

Uses a flat, non-hierarchical system to storage objects and associated meta data

Question 3

SAN

Answer 3

Block LUN using SAN FC switches

FC
iSCSI
FCoE
NVMe/FC San

Question 4

NAS

Answer 4

Enables users to use systems as although they are on the same system through mounted drives.
Provided file based data storage.

File Virtualisation. Can be abstracted from the storage using a Global Namespace (such as dfs).

Question 5

NFS

Answer 5

NFS is used for LINUX and uses exporting to provide access.
Exported filesystems must be mounted (usually Linux).
Permissions are Linux based

Question 6

SMB Protocol (CIFS)

Answer 6

Windows Based windows sharing.
SMB provides access to remote computers
Uses AD for file permissions on the folder level.

Question 7

Netapp ONTAP storage architecture

Answer 7

Has logical and physical layers

Physical layers are disks, combined into Aggregates

Logical Layer is volumes, files, LUNs and namespaces provided by Storage Virutal Machines (SVM).