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The Limitations of Server-Free Backup in the Organization

By CIOReview | Tuesday, September 27, 2016

Information is a vital asset, required for organizations efficient functioning. For the same, information should be safeguarded so that there are minimal chances of it being stolen or misused. So, a question arises on how do you safeguard information? The ideal answer is to create a stringent backup. While, organizations need a stringent backup plan to restore and further view their data when required, they go in favor of server-free backup. In thi s method, the application server offloads the work of moving blocks of data to a specialized “data-mover” device located on a storage network. The key advantage of server- free backup is the reduction of workload on the application server.

How Server- Free Backup Works in the Organization

Server-free backup provides alternative copy of data to enable seamless and scalable backup in the organizations. The data through a backup server is further transferred to other devices to copy and tape.  In addition, the backed up server leverages data on the storage area network; transferring the extra copy of data to tape.

Secondly, the data can eventually be transferred server free through a SCSI command. The command allows the third-party to copy data directly to the disk array and further to the tape drive without the need of server.

Benefits of Adopting Server-Free Backup in the Organization

Organizations handling large amounts on a daily basis can slash time required to complete backup operations, further increasing the utilization of devices. Moreover, it reduces application server CPU cycles to cut the time consumed in the flow of data to be transferred.  The backup server also handles bulk data movement through specialized storage network. Other benefits include; eliminating the need for additional server for the backup purpose, and supporting all backup methods such as files, image backup, and restores.  It also increases compatibility in the backups where, one backup in the architecture can be read by the other methods.

Drawbacks of Server Free Backup

While, traditional backup applications copy data into the server to build memory image of the data that needs to be backed up and further transfers the image to the backup device. In server- free backup, the server offloads blocks of data to a data-mover device on a storage network. The procedure involved in the movement of data brings major bottlenecks such as complexity and risk.

The server backup also creates logs in three different places such as logs on the clients being backed up, the backup server that transfers the data and main server that controls the process.

Alternatives to Server-Free Backup

While, organizations adopt server free backup to revamp their backup without the need of a server, they also look for an alternative that delivers the same functionality. Continuous data protection (CDP) appears as a substitute to remove the problems associated with larger backup.

CDP transfers data outside the server by distributing the data into significant smaller amounts.  The data is transferred every hour to the backing system unlike the traditional backup system.

The demand for server-free backup is doubling every year due to the increasing complex applications. Several mission critical applications are forcing workgroups to merge into large networks. However, sharing storage across servers helps to easily manage and maintain them. This can further create the growth in SAN over the traditional server- attached storage. Moreover, these days the organizations are driving towards 24/7 backup organizations to store their data further causing network congestion and operation slowdown.