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Continuous availability
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Continuous Availability
Continuous availability in computing refers to the ability of a system or service to remain accessible and operational without interruption, downtime, or degradation in performance. It is a critical aspect of ensuring that applications and resources are consistently available to users, customers, or stakeholders, regardless of external factors or internal failures. Achieving continuous availability requires implementing redundant components, fault-tolerant architectures, and high-availability configurations to minimize the impact of hardware failures, software bugs, network issues, or other disruptions. Technologies such as load balancing, clustering, failover mechanisms, and data replication are commonly used to maintain continuous availability by distributing workloads, automatically redirecting traffic, and ensuring data consistency across redundant systems. Continuous monitoring, proactive maintenance, and disaster recovery planning are also essential components of ensuring continuous availability by detecting and mitigating potential issues before they affect service delivery. Businesses and organizations rely on continuous availability to support critical operations, maximize productivity, and deliver consistent user experiences, ultimately contributing to customer satisfaction and organizational resilience.
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Data Storage: See also Filesystems
Computer memory and data storage types:
General
General:
Non-volatile memory
Non-volatile memory - Non-volatile
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- Solid-state storage (SSS)
- Flash memory is used in:
- Solid-state drive (SSD)
- Solid-state hybrid drive (SSHD)
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NVRAM
Early-stage NVRAM
Early-stage Non-volatile random-access memory | NVRAM
Analog recording
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- Digital Data Storage (DDS)
Optical storage
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- Compact Disc Digital Audio (CDDA)
In development
Historical
- Paper data storage (1725)
- Punched card (1725)
- Punched tape (1725)
- Drum memory (1932)
- Magnetic-core memory (1949)
- Plated-wire memory (1957)
- Core rope memory (1960s)
- Thin-film memory (1962)
- Disk pack (1962)
- Twistor memory (~1968)
- Bubble memory (~1970)
- Floppy disk (1971)
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