Figure 3

Clients

Application

 

Backup

Server-Free

Servers

 

SAN

 

Backup

 

 

 

Application Traffic

 

 

Leveraging

 

 

Third-Party

 

Backup

 

Copy Engine

 

 

 

Ethernet

 

Command

 

Network

 

 

 

Third-Party Copy Engine

Embedded in SCSI Bridge

Backup Server

Backup Industry and Product Overview

Many software vendors produce centralized backup software such as Veritas Netbackup, Veritas BackupExec, Legato Networker, and Computer Associates BrightStor ARCserve 2000 Advanced Edition. All these products follow a centralized mechanism whereby backups are performed via a dedicated backup server and directly attached archive device(s). A centralized backup scheme may also involve several different software and hardware modules. It is important to understand these various components of a backup solution and their role and impact on performance.

First, the central or master server controls the entire backup environment including indices, backup schedules, client group definitions, and hardware configurations. The master server is also responsible for logging problems with backups and reporting them to a system administrator. Sometimes this function is referred to as the connection broker.

The second type of server in a centralized backup system is a media server or storage node. The media server is attached to the type of storage medium for the backup, usually a tape device attached via a Fibre Channel or parallel SCSI connection. The media server is responsible for actually sending data to tape. This server takes its direction from the master server as to the files to backup and the particular media set to use. The media server may also be referred to as the data mover.

Third and most important is the backup client that actually refers to the server being backed up. Client software is installed to every system that requires backup services. Even the master server and media server usually have client software on them so that they may back themselves up.

Major Advantages of SAN Deployment for Backup

As discussed above, enterprises have started to deploy dedicated Fibre Channel based storage networks to solve the performance bottleneck issues of a shared LAN. Additional advantages of storage networks are listed below:

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Cisco Systems MDS 9000 manual Ethernet, Network, Backup Industry and Product Overview

MDS 9000 specifications

Cisco Systems MDS 9000 series is a line of storage networking switches designed to address the unique demands of enterprise-level data centers. These switches provide high-performance solutions for connecting various storage devices, including traditional disk arrays, solid-state drives, and tape libraries. The MDS 9000 series is built for scalability, high availability, and advanced security, making it an ideal choice for organizations looking to optimize their storage infrastructure.

One of the standout features of the MDS 9000 series is its support for Fibre Channel and FICON protocols, which enable seamless integration with various storage technologies. This versatility is crucial for organizations that may be using a mix of applications and storage performance requirements. The switches support multiple speeds, including 1G, 2G, 4G, 8G, and even 16G Fibre Channel rates, ensuring that they can adapt to evolving storage needs.

The MDS 9000 is known for its advanced features in terms of management and automation. Cisco provides intelligent automation capabilities to enhance operational efficiency. Features like Flow Vision and intelligent network services allow for deep visibility into storage environments, enabling administrators to monitor performance, troubleshoot issues, and optimize resource allocation effectively. This level of visibility helps organizations to mitigate risks and ensure data availability.

Security is another paramount consideration for the MDS 9000 series. The switches are equipped with a range of security features, including role-based access controls, encryption technologies, and zoning options. These capabilities help safeguard sensitive data and ensure compliance with industry regulations, making the MDS 9000 a trusted choice for enterprises dealing with critical data.

The architecture of the MDS 9000 series is designed for high availability and resiliency. With redundant power supplies and cooling systems, these switches minimize downtime and ensure continuous operation. Additionally, they offer advanced features like non-disruptive software upgrades, which eliminate the need for scheduled outages during firmware updates.

In summary, the Cisco Systems MDS 9000 series offers a robust set of features tailored for enterprise storage networking. Its support for various protocols, intelligent management capabilities, and high availability characteristics make it a preferred choice for organizations seeking to optimize their storage infrastructure for both current and future needs. By investing in the MDS 9000 series, businesses can enhance their operational efficiency, ensure data security, and maintain a competitive edge in today's data-driven landscape.