Data storage options for SMBs

Your RTO and RPO (see sidebar) will be determined by the value and time-sensitive nature of your applications that support your business's continued operations. Some backup and recovery technologies and techniques for small and medium-sized businesses (SMBs) include:

For a complete backup, you will need to ensure that desktops and laptops, as well as servers, are backed up to enable complete restoration. Simply relying on users to save key data files to a server or shared file system that is regularly backed up does not guarantee a complete backup. For example, if users forget or neglect to save critical files to file servers, key data may be missed and not backed up. Similarly, if you are using a desktop-based backup product that looks at only certain folders or directories -- for example "My Documents" on a Windows environment -- you may not be protecting data stored elsewhere on that system.

Depending on what your data protection objectives are, you may need to leverage a desktop-backup product that enables complete protection of operating system, application and configuration information to facilitate bare-metal restore. Look for backup products that are flexible and extensible to enable you to tailor the technology to meet your specific needs and requirements on an application, server or even desktop basis.

When deciding how to back up your environment, consider the following:

Technology and services vendors include Arsenal Digital Solutions USA Inc., Asigra Inc., Atempo Inc., Avamar Technologies Inc., CommVault Inc., EMC Insignia (Dantz & Retrospect), EVault

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Inc., FalconStor Software Inc., FilesX Inc., Hewlett-Packard Co., IBM Tivoli, Innovation Data Processing, Intradyn Inc., Microsoft, Symantec Corp., Vembu Technologies Pvt. Ltd. and many others. Hardware, media and device vendors include Data Domain Inc., Diligent Technologies Corp., EMC Corp., Fujitsu, HP, IBM, Imation Corp./Memorex Products Inc., LeftHand Networks Inc., Network Appliance Inc., ONStor Inc., Overland Storage Inc., Quantum Corp., Seagate Technology/Maxtor Corp., Sepaton Inc., Sony, Spectra Logic Corp., Sun/STK, Tandberg and many others.

There are many options available to back up SMBs that range from do-it-yourself, combining hardware and software, to outsourcing your backups to an MSP with many variations and combinations. Identify your needs including RTO and RPO, what available budget exists and business exposure, and then align applicable technology to those needs. RAID-protected disk is not a substitute for performing regular backups to some other medium. For distributed environments, your options include placing backup hardware and software at remote offices, pulling or pushing data back to a central site, or consolidating data to a central or regional site for remote access using wide-area file services.

When leveraging an MSP as part of your backup and data protection strategy, keep in mind the amount of data that needs to be backed up and the available network bandwidth to ensure that data is protected on a timely basis. Depending on your needs, a multi-tier backup could involve disk-to-disk for local fast recovery and an off-site copy for disaster recovery and business continuance purposes to another media.

Greg Schulz is founder and senior analyst of The StorageIO Group in Stillwater, Minn., (www.storageio.com) and author of the book Resilient Storage Networks (Elsevier).

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