Computer servers house volumes of data ranging from simple raw databases to big data or big data environments. They also provide processing and management, and are capable of performing many other tasks: email, business software and applications, access to local or remote networks, security and authentication, etc.

As such, they make up the backbone of the IS (Information System) of many companies and public and private organizations: companies of all sizes (PME / PMI, ETI, GE…), financial establishments, universities and research centers, establishments health, etc.

Computer servers take many forms depending on the volumes of information to be stored or processed and the execution of the required tasks:

Physical and spatial organization of the servers:

• Stocking Harbor.
• Central computer
• Library or backup robot
• Data Center or data center

Systems and architectures:

• NAS or SAN servers
• RAID systems
• Magnetic tapes

Storage method and techniques:

• Virtualization, virtual private servers (VPS) and virtual environments (VE)
• Cloud, cloud computing solutions and use of remote servers
• Dedicated server provided by a host

Faults and failures causing data loss on servers

Computer servers mostly benefit from a controlled and secure environment, due to their strategic sensitivity. They are nevertheless exposed to the computer failures commonly encountered, despite the emergency, backup or redundancy systems put in place. Mechanical breakdowns, electronic breakdowns or logical breakdowns can thus lead to loss of critical data.