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Vol. 4 No. 9 November 2005

CDP poised to replace traditional backup methods

We've witnessed major changes in data management during a decade of SAN evolution. Advances in disk capacity, huge reductions in the cost of disk and ever-developing tools have significantly changed the way data is managed. Today, we're able to provision and allocate storage online, create snapshots and local volume copies automatically, and replicate data across long distances. The technologies used to perform these tasks are far from "bleeding edge," but many have been widely adopted and are generally accepted as best practices for managing and protecting data. Compared to the pre-SAN era, the shift is quite dramatic. But amid this data management revolution, backup is a notable exception. Despite advances such as SAN-based shared tape drives and disk technology like virtual tape libraries, the backup process is fundamentally the same as it was 20 years ago. Backup remains a costly and highly intrusive batch operation that's prone to error and consumes an exorbitant amount of time and resources. Defining CDP "Continuous data ...

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Features in this issue

  • Quality Awards: What are the best midrange arrays?

    Midrange array users are a generally satisfied group, according to the latest Diogenes Labs-Storage magazine Quality Awards survey. While all midrange array vendors fared quite well in this third installment of our awards program, the vendor that snared top honors might surprise some people.

  • Easing away from ESCON

    by  Alex Barrett

    ESCON, the protocol that pre-dated FICON as a systems-to-storage connection, is incompatible with the newer FICON-based systems. This tip looks at various ways you can tackle this dilemma.

  • Secure your backups

    The headlines tell the story: Lost tapes can jeopardize the confidentiality of personal information and cause public-relations woes for those companies charged with safeguarding that data. Encryption can solve the problem, but implementing tape encryption isn't so easy, as performance issues could impact backup windows.

Columns in this issue

SearchSolidStateStorage

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

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