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Snapshots: The alternative backup
This article is part of the Storage magazine issue of Vol. 9 Num. 9 January 2011
How do you beat the backup window? Use snapshots and you can forget about backup windows. Snapshot-based backup, also known as near-continuous data protection (or near-CDP), currently offers one of the most cost-effective, worry-free and efficient ways to provide operational recovery. Before we get into why, let's first look at a few of the alternatives. Tape systems, when used in conjunction with a traditional data backup system, are the most cost-efficient way to provide long-term storage of backups and archives; however, the mismatch between the speed of backups and the speed of modern tape drives creates quite a challenge when performing operational backup and recovery directly to and from tape. A popular option is to augment tape with a data deduplication target for your traditional backup system. This significantly improves the efficiency of traditional backup systems and reduces the amount of ongoing maintenance they need; however, dedupe systems aren't cheap. And while deduplication technology makes backups more ...
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Features in this issue
Record-breaking scores highlight EMC's big win in the enterprise NAS group and IBM's stunning performance among midrange NAS systems.
Snapshot-based backup, also known as near-continuous data protection, is one of the most efficient ways to provide operational recovery, and you can forget about backup windows.
More than two-thirds of the respondents to our survey are diligent DR plan testers, but they test fewer apps.
Hybrid cloud storage products provide the best of both worlds -- local storage that's tightly integrated with off-site cloud storage services.
Columns in this issue
Gartner's Hype Cycles make for interesting reading. But they might also be a handy way to evaluate storage technologies.
Scale-out storage enables rapid, on-the-fly expansion of data storage systems that support fast-growing applications. You can start small and grow as your storage needs change.
2010 was a fairly tumultuous year in storage highlighted by blockbuster acquisitions. This year it's time to get back to the business of managing storage.
Anyone who has struggled with configuring storage for VMware virtual servers will be happy to hear help is at hand; just look inside your storage array.