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Cloud server product overview
Tencent cloud server products?
CVM cloud server (Cloud Virtual Machine, CVM) provides safe and reliable elastic computing services. CVM can be obtained and enabled in the cloud to meet computing needs. Scale computing resources up or down in real time as business needs change. CVM supports billing based on the actual resources used, saving computing costs.
GPU cloud server (GPU Cloud Computing) is a fast, stable and flexible computing service based on GPU that is used in video encoding and decoding, deep learning, scientific computing and other scenarios. It provides the same management method as a standard cloud server. Graphics processing capabilities and high-performance computing capabilities provide ultimate computing performance, effectively relieve computing pressure, and improve the computing processing efficiency and competitiveness of products.
FPGA Cloud Computing is a computing service based on FPGA (Field Programmable GateArray) field programmable array, which supports the rapid deployment of FPGA computing instances. Supports programming on FPGA instances to create custom hardware acceleration for applications. Provides a reprogrammable environment that can be programmed multiple times on an FPGA instance without redesigning the hardware.
CDH dedicated host (Cvm Dedicated Host) can be purchased and created as a cloud host with exclusive host resources to meet resource exclusive, security and compliance requirements; after purchasing a dedicated host, you can flexibly create and manage multiple cloud hosts on it. An exclusive cloud host with customized specifications.
Blackstone-Hybrid Cloud Plus is a bare metal cloud service that provides on-demand purchase and pay-as-you-go physical servers (Cloud Physical Machines), and provides high-performance, secure and isolated physical clusters dedicated to the cloud. To use this service, you only need to determine the configuration and quantity, and the time to obtain the server will be shortened to 4 hours. The server supply and operation and maintenance work will be handed over to Tencent Cloud, allowing users to focus on business innovation.
What are the advantages of CVM server?
Elastic computing : The number of cloud servers can be quickly added or deleted on Tencent Cloud within a few minutes to meet rapidly changing business needs; through relevant settings, the server scale can be automatically expanded and reduced as needed.
Flexible configuration : Provides a variety of instance types, operating systems and software packages to choose from. The CPU, memory, hard disk, and bandwidth in each instance can also be flexibly adjusted.
Stable and reliable : Tencent Cloud provides 99.95% service availability and 99.999999% cloud disk data reliability; the cloud disk equipped with CVM provides a three-copy storage strategy to ensure rapid data migration and recovery when any copy fails. CVM is equipped with a stable network The architecture adopts mature network virtualization technology and network card binding technology, and runs in T3+ or above data centers to ensure high network availability.
Easy to use : You can use the Tencent Cloud console, API or CLI to fully control the server instance and view and configure resources at any time.
Secure network : The private network function provides a logically isolated network on Tencent Cloud. Network access control (ACL) can control incoming and outgoing traffic at the subnet level; flexibly configurable security group policies can control incoming and outgoing network traffic at the instance level. Perform security filtering.
Comprehensive protection : Provides basic protection functions such as Trojan detection, brute force cracking protection, and vulnerability scanning; provides advanced security protection services such as DDoS protection and DNS hijacking detection.
Flexible billing : It supports two billing methods: pay-as-you-go and monthly and annual subscriptions, which can be flexibly selected according to usage scenarios.
What is the difference between dedicated host and CVM?
What are the main differences between dedicated host CDH and Blackstone physical server CPM?
Blackstone Server is an exclusive physical server rental service, not a cloud server (virtual server) rental.
The concept of instance?
An instance can be understood as a virtual machine, including the most basic computing components such as CPU, memory, operating system, network, disk, etc.
What are the applicable scenarios for different instances?
What is a mirror?
"Installation disk" of cloud services
How to choose image types in different scenarios?
Public image : genuine operating system, including initialization components provided by Tencent Cloud;
service market image : quickly build a personalized application environment based on mature construction solutions;
custom image : quickly create the same software environment as an existing cloud server, or perform environment backup ;
Shared image : Quickly create the same software environment as other users' existing cloud servers.
Classification of cloud server storage
Divided by storage media , ordinary hard disks (mechanical hard disks, with good read and write performance, low price), SSD hard disks (solid state hard disks, with high read and write performance, but high price) are divided
according to applicable scenarios , system disks (storage control, scheduling cloud The disk that the system running the server collects data from), the data disk (which stores all user data) is divided
according to the architecture mode , the cloud disk (independent and scalable network block device, three-copy distributed storage method), the local disk (data access can obtain more Low latency, but there is the risk of a data single point of failure.), object storage (object storage is a data storage device located on the Internet, which supports data retrieval from cloud server instances or anywhere on the Internet, thereby streamlining storage costs. No Suitable as a storage medium in low latency and high IO scenarios.)
How do cloud resources in the same region communicate with each other?
Cloud resources in the same region are interconnected through the intranet and can be accessed directly using the intranet IP . Cloud products between different regions cannot communicate through the intranet by default. By default, cloud servers cannot be accessed across regional intranets, and cloud database load balancing services cannot be accessed across regions by default. When binding a server, you can only choose to bind a cloud server in the local domain. Cloud resources in different regions
can be accessed through the Internet through public IPs. ; Cloud services in private networks can also communicate via Tencent Cloud high-speed Internet through the peer-to-peer connection provided by Tencent Cloud. Load balancing does not support cross-regional traffic forwarding.
Advantages of Tencent Cloud Server
Scale effect?
Service nodes: Global layout
Product types: Many types
Solutions: Rich experience in industry liberation
Safe and reliable?
High availability,
high computing performance, elastic computing
and security
Instance management method?
Console
CLI command line mode
Tencent cloud server selection
Access and applicable policies (load balancing, cloud database) between cloud resources in different regions?
VPC Peering is a cross-VPC network interconnection service for office data synchronization that enables private network IPs to route traffic between peered VPCs as if they belonged to the same network.
To realize the interconnection of private networks of the same/different users in the same region or across regions, by configuring routing policies at both ends, the traffic intercommunication of different private networks can be realized. Peer-to-peer connections do not rely on a separate piece of hardware, so there is no single point of failure or bandwidth bottleneck.
In a given scenario, what type of cloud server should I choose?
Principles for model selection:
Standard type : general workload, suitable for small and medium-sized Web applications; small and medium-sized databases.
Computing type : requires high computing performance and high concurrent reading and writing . Suitable for batch processing workloads; high-traffic web servers; large-scale multiplayer online game servers; high-performance computing.
In-memory : Applications involving a large number of memory operations, searches, and calculations . Suitable for high-performance databases; distributed memory caches; self-built Hadoop clusters or Redis users.
High IO type : high disk IO load. Suitable for NoSQL databases; clustered databases; online transaction processing.
Tencent cloud server billing plan
Recycling mechanism
Within 7 days before the cloud service resources expire, the system will send you a renewal reminder notice.
If the account balance is sufficient and you have set up automatic renewal, the device will automatically renew on the expiration date. If your cloud server is not renewed before expiration (including the day of expiration), the system will start to stop the service at the expiration time (the device will be shut down and powered on, and only the data will be retained). The cloud server goes into the recycle bin.
After the cloud server enters the recycle bin, it will be forcibly unmounted from the elastic public IP, elastic cloud disk, auxiliary network card, and basic network interoperability. After renewal is restored, its mounting relationship will not be restored and you need to reconfigure it.
From the day after expiration to 7 days after expiration, you can still renew and retrieve the device in the recycle bin. It is worth noting that the start time of the renewal cycle of the instance retrieved by renewal is the expiration date of the previous cycle.
If your cloud server is not renewed after 7 days of expiration (including the 7th day), the system will start to release resources at 0:00 on the 8th day after expiration, and the data in the expired server will be cleared and cannot be recovered.
