NETWORK WORLD NEWSLETTER: MIKE KARP ON STORAGE IN THE ENTERPRISE 10/28/04 Today's focus: Replication scenarios
Dear [EMAIL PROTECTED], In this issue: * Rules regarding remote sites for disaster recovery purposes * Links related to Storage in the Enterprise * Featured reader resource _______________________________________________________________ This newsletter is sponsored by Veritas IDC White Paper, Distributed Applications Performance Management Performance management of distributed applications continues to grow in complexity, keeping pace with this constantly changing environment is a challenge for IT and performance management software vendors alike. Learn how the Veritas i3 Approach can be the foundation for your organization's Application Performance Management strategy. Download this IDC White Paper now http://www.fattail.com/redir/redirect.asp?CID=85640 _______________________________________________________________ NOW AVAILABLE! Networking for Small Business website Get all the combined Small Business advice, authority, and know-how from the experts at NW Fusion and PC World distilled into one powerful resource, the new Networking for Small Business website. Find everything your small business needs regarding Security, Networking, Broadband, Hardware, Software, and Wireless and Mobile technology at: http://www.fattail.com/redir/redirect.asp?CID=85540 _______________________________________________________________ Today's focus: Replication scenarios By Mike Karp Today, let's sing in praise of replication. Replication has been the mainstay technology of disaster recovery strategies for quite some time now. Data is copied to a remote site, where it is archived and in an emergency, it is brought back online again at a primary site. Rules regarding remote sites are few, but important. Rule one is usually that the more distance between the sites, the better. Rule two is that the remote site ought to be in a geologically stable area. Rule three says that recovery ought to be as fast as possible. The first rule works to isolate events at the two sites. Rule two speaks well for property values in North and South Dakota. And rule three is a good indicator of why Iron Mountain is evolving from being a simple tape depository. Replicated data has value far beyond DR copies at a remote site, however. Consider some additional usesfor replicated volumes if the replicas are stored locally. The following list is brief, but serves to show where this can take you. Replicate a volume to local cheap storage, and then perform high-workload services from the replica. Under such a scenario a database might be copied from Fibre Channel devices to SATA, with the following results: the worry about overstepping maintenance windows is eliminated because of the speed of disk-to-disk copying; reports and backups to tape - cycle-suckers in any environment - can be written from the replica; and performance on the primary system remains unaffected. A further benefit: while the replica remains on the near line device, recoveries will always be faster than they could ever be by tape. Replication scenario two: replicate a data set and ship the replica off to your R&D team. You have now provided them with a data set for their test beds that exactly reflects the data in the real world. Looking for payback? All the time that the quality assurance group no longer invests in building and rebuilding test bed data may more than pay for your investment in an efficient replication product, and the test environment itself will be far more robust. Replication scenario three: replicate a data set and let your IT support team use it as they prepare to roll out the next version of some key software they are supporting. They can test the new release against a real-world environment, and by the time the upgrade goes live you can be sure that the number of "gotchas" in the upgrade will be far fewer than what you are used to seeing. Replication's value - particularly when it is automated and doesn't take a lot of time out of an admin's day - delivers value far beyond what most IT managers expect to get from it. Think about how you might be able to use it, and do some research on the topic. Next week: The straight poop from Storage Networking World, and who shoveled it. RELATED EDITORIAL LINKS Storage vendors try to ease back-up and protection tasks Network World, 10/25/04 http://www.nwfusion.com/news/2004/102504snw.html Emulex, Brocade tout faster Fibre Channel wares Network World, 10/25/04 http://www.nwfusion.com/news/2004/102504snwside.html _______________________________________________________________ To contact: Mike Karp Mike Karp is senior analyst with Enterprise Management Associates, focusing on storage, storage management and the methodology that brings these issues into the marketplace. He has spent more than 20 years in storage, systems management and telecommunications. Mike can be reached via e-mail <mailto:[EMAIL PROTECTED]>. _______________________________________________________________ This newsletter is sponsored by Veritas IDC White Paper, Distributed Applications Performance Management Performance management of distributed applications continues to grow in complexity, keeping pace with this constantly changing environment is a challenge for IT and performance management software vendors alike. Learn how the Veritas i3 Approach can be the foundation for your organization's Application Performance Management strategy. Download this IDC White Paper now http://www.fattail.com/redir/redirect.asp?CID=85640 _______________________________________________________________ ARCHIVE LINKS Archive of the Storage newsletter: http://www.nwfusion.com/newsletters/stor/index.html Breaking storage news and analysis: http://www.nwfusion.com/topics/storage.html _______________________________________________________________ FEATURED READER RESOURCE NW CLEAR CHOICE TESTS The Network World Lab Alliance is a coalition of industry experts, network integration consultants, independent test labs and universities who conduct single-product reviews and head-to-head comparative tests in real enterprise network settings. Find out which products get the "thumbs-up" in categories such as web front-end devices, WLAN security, anti-spam and more at: <http://www.nwfusion.com/reviews/> _______________________________________________________________ May We Send You a Free Print Subscription? 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