AMI (Amazon Machine Image) - 术语表
定义与解释： AMI (Amazon Machine Image). An AMI is a template containing the software configuration for launching EC2 instances.
云计算术语表
云计算术语表
云计算术语表
云计算术语表. Compare pricing across AWS, Azure, GCP, and Alibaba Cloud.
Overview
Browse our comprehensive collection of cloud pricing information for glossary. All data is sourced from official cloud provider pricing APIs and updated regularly.
价格对比
| 云厂商 | Starting Price | Free Tier | Reserved Discount |
|---|---|---|---|
| AWS | $0.00520/hr | 12 months | Up to 72% |
| Azure | $0.00520/hr | 12 months | Up to 72% |
| GCP | $0.00400/hr | Always-free tier | Up to 57% |
| Alibaba | $0.00300/hr | 12 months | Up to 60% |
推荐方案
- Compare all providers: Pricing can vary by 20-40% for equivalent instances
- Use reserved instances: Commit for 1-3 years to save 40-72%
- Leverage spot instances: Save 70-90% for interruptible workloads
- Right-size your instances: Match instance specs to actual workload requirements
- Monitor costs: Set up billing alerts and review spending regularly
Auto Scaling - 术语表
定义与解释： Auto Scaling. Auto scaling automatically adjusts the number of instances based on demand and defined policies.
Availability Zone - 术语表
定义与解释： Availability Zone. An availability zone is an isolated location within a region designed for fault tolerance and high availability.
Bandwidth - 术语表
定义与解释： Bandwidth. Bandwidth is the maximum rate of data transfer across a network connection, measured in bits per second.
Cloud Region - 术语表
定义与解释： Cloud Region. A cloud region is a geographical area with one or more availability zones operated by a cloud provider.
Cloud Storage - 术语表
定义与解释： Cloud Storage. Cloud storage is a cloud computing model that stores data on remote servers accessed via the internet.
EBS (Elastic Block Store) - 术语表
定义与解释： EBS (Elastic Block Store). Amazon EBS is AWS's block storage service providing persistent volumes for EC2 instances.
EBS Snapshot - 术语表
定义与解释： EBS Snapshot. An EBS snapshot is a point-in-time backup of an EBS volume stored in Amazon S3.
HDD (Hard Disk Drive) - 术语表
定义与解释： HDD (Hard Disk Drive). HDD is a traditional storage device using magnetic disks, offering lower cost per GB but slower performance.
IOPS (Input/Output Operations Per Second) - 术语表
定义与解释： IOPS (Input/Output Operations Per Second). IOPS measures the number of read/write operations a storage device can handle per second.
Latency - 术语表
定义与解释： Latency. Latency is the time delay between a request and its response, measured in milliseconds.
Load Balancer - 术语表
定义与解释： Load Balancer. A load balancer distributes incoming network traffic across multiple instances for reliability.
On-Demand Pricing - 术语表
定义与解释： On-Demand Pricing. On-demand pricing charges per hour or second of usage with no upfront commitment.
RAM (Random Access Memory) - 术语表
定义与解释： RAM (Random Access Memory). RAM is the volatile memory used by a computer or cloud instance for temporary data storage during processing.
Reserved Instance - 术语表
定义与解释： Reserved Instance. A reserved instance is a billing discount offered in exchange for a usage commitment.
Savings Plan - 术语表
定义与解释： Savings Plan. A savings plan offers flexible pricing in exchange for a commitment to a consistent hourly spend.
Security Group - 术语表
定义与解释： Security Group. A security group is a virtual firewall controlling inbound and outbound traffic for cloud instances.
Spot Instance - 术语表
定义与解释： Spot Instance. A spot instance is spare cloud capacity available at a discount, subject to interruption.
SSD (Solid State Drive) - 术语表
定义与解释： SSD (Solid State Drive). SSD is a storage device that uses flash memory, offering higher performance than traditional HDDs.
Subnet - 术语表
定义与解释： Subnet. A subnet is a range of IP addresses within a VPC that can be used to isolate resources.
TCO (Total Cost of Ownership) - 术语表
定义与解释： TCO (Total Cost of Ownership). TCO is the complete cost of owning and operating a system, including direct and indirect costs.
Throughput - 术语表
定义与解释： Throughput. Throughput is the amount of data transferred per unit of time, typically measured in MB/s or Gbps.
vCPU (Virtual CPU) - 术语表
定义与解释： vCPU (Virtual CPU). A virtual CPU is the share of a physical CPU allocated to a virtual machine or cloud instance.
VPC (Virtual Private Cloud) - 术语表
定义与解释： VPC (Virtual Private Cloud). A VPC is a logically isolated network section of a cloud provider's network for hosting resources.