Is electronic vaulting feasible?

Nowadays, more folks think of electronic vaulting as a substitute for an offsite tape approach. Many times, the possible data bandwidth between two sites is overlooked when estimating the backup window for tape copy/duplication.

Enterprise backup/restore software like TSM could make electronic vaulting possible through either a SAN or a high speed TCP/IP connection. However, devices that are currently available, such as McData directors or IBM DWDM, could extend a SAN to 103 kilometers. When the distance between two sites goes beyond this limit, storage-over-WAN is the only likely possibility. In this case, the data bandwidth would be a lot less than 100 Mbps and the backup replication of hundreds of GBs or TBs would take days instead of hours.

About the author: Giao Tran is currently a technical consultant at Sirius Computer Solutions, an IBM business partner. His technical areas are in IBM pSeries (RS/6000s), HACMP, SAN/NAS and TSM. You can reach him via e-mail at

    Requires Free Membership to View

    Login

Giao.Tran@siriuscom.com.


This was first published in April 2002

Join the conversationComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.

    Disclaimer: Our Tips Exchange is a forum for you to share technical advice and expertise with your peers and to learn from other enterprise IT professionals. TechTarget provides the infrastructure to facilitate this sharing of information. However, we cannot guarantee the accuracy or validity of the material submitted. You agree that your use of the Ask The Expert services and your reliance on any questions, answers, information or other materials received through this Web site is at your own risk.

    Back to top