公司簡介 - Towngas Telecomfile.towngastelecom.com/files/brochures/20141017180217_102.pdf · 靈活的雲端服務。 名氣通為阿里雲進軍海外市場的重要合作夥伴，共同策

公司簡介

COMPANY INTRODUCTION

公司概況

名氣通電訊有限公司（名氣通）是香港中華煤氣旗下的全資

附屬機構，同時亦為恒基集團聯營公司之一，擁有藍籌級極

優質信譽，實力昭著。作為中立電訊供應商的名氣通，擁有

穩定高速的網絡服務及國際級的數據中心，一直專注提升相

關業務優勢和基礎，為各類型企業提供專業、可靠及穩定的

網絡服務。同時，名氣通亦已建立一個高度安全保密及高度

靈活的雲端服務。

名氣通為阿里雲進軍海外市場的重要合作夥伴，共同策

劃及結合雙方的營運優勢及商務模式，攜手為企業提供

服務範圍更廣闊、運算資源更靈活的雲端服務。

新一代的雲端服務ACT，提供即時、靈活、低成本及安

全可靠的 IT資源，給信心予本港、中國大陸及其他海外

的企業，促進其業務增長。

COMPANY BACKGROUND

As a wholly owned subsidiary of The Hong Kong and China Gas Co. Ltd. and an associated company of Henderson Land Development Co. Ltd., Towngas Telecommunications Co. Ltd. (Towngas Telecom) has long been regarded as a reputable company for quality services. By integrating reliable and high-speed connectivity with advantages such as world-class data centres, Towngas Telecom has been able to serve a cloud computing platform with high security and flexibility.

Towngas Telecom is the strategic partner of Alibaba Cloud Computing (Aliyun), a subsidiary company of China e-commerce’s leader of Alibaba Group Holdings Limited, to enter overseas markets. The two companies have planned and integrated their operational advantages and business models to provide more far-reaching and flexible cloud services to customers.

As a new generation of cloud service, ACT will provide an instant, low cost, scalable and secure on-demand IT resources for business expansion with flexibility and confidence for customers from Hong Kong, mainland China and overseas markets.

合作夥伴 PARTNERSHIP

ACT客戶專享ACT Customer Privilege免費使用「雲盾」及「雲監控」服務

詳情請瀏覽ACT網頁ACT customer can enjoy

‘Cloud Shield’ and ‘Cloud Guard’ services for free exclusively.To learn the full benefits of ACT services,

please visit ACT website

www.tgtact.com

1 彈性運算服務

Elastic Compute Service

2 伺服器負載平衡系統

Server Load Balancer

3 關係型數據庫服務

Relational Database Service

4 開放式存儲服務

Open Storage Service

1 彈性運算服務Elastic Compute Service ( ECS )

ECS 是一種擁有高度彈性的雲端運算系統，比實體伺服器更

簡單、更高效能。此服務能快速建立既穩定又安全的作業

系統，並能大幅提升開發效率及降低整體成本，讓客戶更

專注發展核心業務。

ECS is a highly flexible cloud computing system with greater simplicity and efficiency than physical servers. This service enables quick deployment of a safe and stable operation system with enhanced efficiency and reduced costs. Customers will be able to place full focus on their core business development.

服務優勢 service Benefits

‧服務可用性達 99.95%，

數據可靠性達 99.999%‧當機時自動遷移

‧數據備份及恢復

‧系統效能警報

‧Service availability reaches 99.95% and data reliability reaches 99.999%‧Automatic migration upon hardware failures‧Data backup and recovery‧System utilization alerts

‧DDoS 防禦系統

‧安全組規則保護

‧多組用戶隔離機制

‧防止密碼被破解

‧DDoS defense mechanism‧Security group protection rules‧Users isolation mechanism‧Protection against password decryption

‧10 分鐘內可啟動或釋放100 個雲

端伺服器

‧5 分鐘內停機升級 CPU 及記憶體

‧在線不停機情況下擴大頻寬

‧Activate or release 100 cloud servers within 10 minutes‧Upgrade CPU and RAM within 5 minutes shutdown‧Live bandwidth upgrade

穩定

Stability

服務功能 service Features與實體伺服器比較

雲端伺服器的操作系統（Linux及Windows）擁有完全控制權，如啟動、停止、重啟、重置、修改密碼及更換操作

系統等

雲端伺服器的磁碟數據庫截取快照（Snapshot），並以快照恢復磁碟數據

為已經安裝了應用軟件的雲端伺服器截取自行定義圖像

（Image），並利用圖像來複製其他雲端伺服器

通過安全組功能對一個或多個雲端伺服器設定到訪權限

Full controls over Cloud Server OS ( Linux and Windows ), such as, start up, stop, reboot, reset, password reset and OS replacement,

Capture Snapshot of disk data on cloud servers for data restoration

Generate an Image of cloud server in the installed application software package, and hence make use of the Image to clone other cloud servers conveniently

Set up access rights to one or multiple cloud servers through Security Groups

etc

Comparisons with Physical Servers

安全Security

富彈性Flexibility

2 伺服器負載平衡系統Server Load Balancer ( slb )

SLB是對多個雲端伺服器進行流量負載平衡化的服務。SLB能

夠通過資源分配負載，以達到資源優化，並擴展應用系統對

外的服務能力，避免單一故障點（SPOF）及提升應用系統的

可用性。

服務優勢 service Benefits

‧採用冗餘設計（Redundancy Design），多個伺服器同時運作，可用性

高達 99.99%‧根據應用負載進行彈性擴充，在流量大幅波動情況下不會中斷對外服務

‧與實體伺服器負載平衡系統的龐大投資相比，成本可節省高達60%‧於內聯網免費使用負載平衡系統

‧無需一次過購買昂貴的負載平衡系統

‧無需投放資源於維修保養上

‧60% cost reduction can be reached when compared to deployment on a physical server‧Free use of SLB on Intranet ‧No one-off purchase of the load balancing system ‧No investment in system maintenance

‧Redundancy design with multiple servers running simultaneously with 99.99% of availability‧Flexible loading expansion to avoid service interruptions in times of high traffic

‧可結合「雲盾」服務，防止 DDoS 攻擊，

包括：CC、SYN flood 等 DDoS 的入侵

‧Protection against DDoS attacks (CC, SYN flood, etc.) by combining with the ‘Cloud Shield’ service

SLB is a service that balances traffic load to multiple cloud servers. Through traffic distribution, SLB can extend the service capability to avoid single point of failure (SPOF) and enhance the availability of the application system.

服務功能 service Features

提供OSI 第四層（TCP 協定）和第七層（HTTP 協定）的負載平衡服務

對後置雲端伺服器進行健康檢查。可自動隔離出現異常狀

態的雲端伺服器，待該伺服器恢復正常後隔離將自動解除

持續在線功能：在同一Session 內，可將同一客戶端（Client）

的請求（Request）轉發至同一個後置雲端伺服器

支援WRR（Weighted Round Robin）及WLC（Weighted Least-Connection）轉發方式。WRR方式將外部請求依次序分發到後置雲端伺服器上；WLC方式則將外部請求分發到當前連接數最小的後置伺服器上，後置雲端伺服器權限越

高被分發的機率也越大

以監控方法來分配其對應服務的最大頻寬

可支援外聯網或內聯網類型的負載平衡服務

Load balancing services include OSI Layer 4 (TCP protocol) and Layer 7 (HTTP protocol)

Regular health checks provided to back-end cloud servers. Automatically block the abnormal activities in cloud servers and relieved instantly when normal status is resumed

Continuous online to redirect Request from the same Client to the same back-end cloud server in the same Session

Supporting WRR (Weighted Round Robin) and WLC (Weighted Least-Connection) forwarding. WRR distributes external Request to the back-end cloud servers in sequential order; whereas WLC distributes external Request to the back-end servers with the least connections. The higher priority of the back-end cloud servers, the greater chance of receiving Request

Allocating the maximum bandwidth to a particular service through monitoring

Supporting external and internal load balancing services

可用性高High

Availability

成本低

Low Cost

安全

High Security

3 關係型數據庫服務Relational Database Service ( rds )

RDS是一種穩定可靠、富彈性的在線數據庫服務。RDS 採用即

開即用的使用模式，兼容 MySQL、SQL Server 兩種關係型數

據庫，並提供數據庫在線擴充、備份恢復、效能監控及分析

功能。RDS與雲端伺服器搭配使用後可加強 I/O 效能，並使內

聯網互通，避免網絡樽頸。

RDS is a reliable and flexible online database service. The service is readily available and is compatible with two kinds of relational databases (MySQL and SQL Server). Various capabilities are also available, which include online database expansion, backup and recovery, performance monitoring and analysis. When deployed with cloud servers, RDS can enhance I/O performance, and enable network interoperability to avoid network bottleneck.

服務優勢 service Benefits

‧服務可用性達 99.95% ‧RDS 採用主從熱備 (Master-Slave Hot Backup) 設計，

主機故障時後備機可在數秒內完成無縫切換

‧Service availability reaches 99.95%‧Master-Slave hot backup design for the RDS. This allows seamless failover within seconds to the backup machine when the main machine fails

‧數據可靠性達 99.9999% ‧數據庫自動多重備份，可恢復到任何備份點

‧Data reliability reaches 99.9999%‧Automatic backup of multiple databases that supports restoration to any backup points

‧在線無縫升級，不會中斷數據庫運作

‧記憶體和磁碟均可靈活擴充

‧磁碟（隨機讀寫）IOPS 可達12,000

‧Online seamless upgrades without interrupting the operations of the database‧Flexible expansion of memory and disk spaces‧Up to 12,000 IOPS for random disk read and write

服務功能 service Features

配備專屬數據庫管理平台，用戶只需通過瀏覽器，便能

以安全、方便的途徑進行數據庫管理及維護

用戶可隨時因應需要或以自定義時間表進行數據備份，

能夠根據備份文件將數據庫回溯至備份時間點

提供簡明易用的慢SQL分析報告及完整SQL操作報告，還提供主鍵檢查、索引檢查等多種優化建議

顯示了接近20種性能資源監控視圖，可針對部分資源項目設定臨界值警報，並提供WEB操作、SQL審核等多種日誌

Delegate database management platform which enable secure, convenient database management and maintenance through the web browser

Restore the database to any point in any scheduled time according to user requirement

Generate intuitive Slow SQL queries analysis reports as well as Comprehensive SQL reporting services and offer pragmatic suggestions for primary key and index checking

By displaying nearly 20 kinds of performance metrics, it is able to define threshold alerts for certain resources, and provide different types of logs such as WEB operation and SQL server audit journal

穩定Stability

可靠Reliability

富彈性

Flexibility

4 開放式存儲服務Open Storage Service ( oss )

OSS 是可支援任何數據類型的存儲服務，並可在任何時間及

地點進行數據上傳和下載。OSS 中的每個存儲對像（Object

均由名稱、內容及描述三部份組成。除讓客戶獲得更穩定及

安全的存儲服務外，亦大大簡化了開發大容量和高流量系統

的需要。按量付費方式亦能助客戶降低財務風險及成本。

）

OSS is a storage service that supports any type of data and allows users to upload and download data anytime anywhere. In OSS, every storage Object consists of name, content and description. Apart from better stability and security, the OSS also greatly simplifies the need for developing large capacity and high data flow systems. The usage-based charging scheme also helps customers reduce financial risks and costs.

服務優勢 service Benefits

‧服務可用性高達 99.9%‧系統規模自動擴充，而對外服務不受影響

‧數據三重備份，可靠性達 99.99%

‧Service availability reaches 99.9%‧Automatic system expansion without interrupting external services‧Triple data backup with reliability reaches 99.99%

‧多重安全防護及防止 DDoS 攻擊

‧多用戶隔離機制

‧提供到訪日誌，有助於追查非法入侵

‧Multi-level security and protection against DDoS attacks‧User isolation mechanism‧Visitor log to track illegal invasions

‧存儲容量可無限擴充

‧每秒可處理超過 50,000 次到訪

‧多線 BGP 網絡確保全球各地均能輕易到訪

‧Unlimited storage capacity expansion‧Handle more than 50,000 visits per second ‧Multi-BGP network allows easy global access

服務功能 service Features

提供對像（Object）的讀、寫、刪除和複製等基本功能

支援大型文件以分件形式上、下載，及斷線後繼續傳送

隨到訪量和存儲量的增加，OSS 後台會自動擴展，無需客戶費心

通過加密身份驗證功能確保數據安全，並支援以 Bucket 為單元的到訪權限設定。一個 Bucket可以包含無限多的Object，而一個Object 必須屬於一個 Bucket

提供日誌記錄功能，方便追查到訪來源以及進行多方面的

統計分析

提供標準 RESTful 協定的 API 通訊阜以及多語言的 SDK

提供圖片處理功能，包括縮放、剪裁、水印和轉換格式等

Provide basic read, write, delete and copy functions for Object

Uploads and downloads of large files in fragments, and automatic resume after interruptions

With access and storage volume increase, back-end of OSS will be spontaneously extended without user intervention

Data security through encrypted identity validations and supports to set user permissions by Bucket. A Bucket consists of an unlimited number of Object, while each Object must belong to a Bucket

Logging function to facilitate visitors tracking and various statistical analysis

Standard API port (RESTful protocol) and multilingual SDK

Editing capabilities to scale, crop, watermark and convert the format of images

穩定Stability

安全

Security

大規模高效能

Large-scale High performance

CONTACT USPhone Email

Website

Address

: (852) 2963 3667 : [email protected]

: www.tgtact.com

: 香港北角渣華道363號21樓 21/F, 363 Java Road, North Point, Hong Kong