Compute, storage, resilience

Infrastructure

Servers, virtualization, storage, data centres, backup, high availability and disaster recovery, the physical and virtual foundation everything else runs on.

11 articles

An open rack of IT Atlas branded equipment: a 24 port patch panel with blue jumpers, two access switches, a firewall appliance and two rack servers. — Compute, storage and facilities: the tier every recovery objective ultimately depends on.

Backup

Creating verified, recoverable copies of data and systems, isolated well enough to survive the event that destroys the original.

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Backup

Snapshots & Replication

Point in time copies and continuous copies of data, powerful recovery tools that are not substitutes for backup.

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Servers

Compute Models

The spectrum from physical servers to virtual machines, containers and functions, each trading control for operational overhead.

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Servers

The compute platforms that host applications, databases and infrastructure roles, physically or virtually.

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Data Centers

Facilities providing power, cooling, physical security and connectivity for IT equipment, rated by redundancy tier.

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Disaster Recovery

The planned capability to restore technology services at an acceptable level after a major disruption, within agreed time and data-loss limits.

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Disaster Recovery

RPO & RTO

Recovery Point Objective is the acceptable data loss window; Recovery Time Objective is the acceptable time to restore service.

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High Availability

Designing systems to survive component failure without service interruption, by removing single points of failure and automating failover.

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Operating Systems

The software layer that manages hardware resources, isolates processes and presents services to applications.

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Storage

Block, file and object storage systems that provide capacity, performance and durability characteristics matched to each workload.

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Virtualization

Abstracting physical hardware so multiple isolated virtual machines share one host, with live migration, snapshots and dynamic resource allocation.

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