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Vol. 6 No. 9 November 2007

Weighing the risks of 1TB drives

One terabyte SATA and SAS drives are here. And when larger capacity drives come to market, people always cram them with data. That being said, what are the implications of storing that much data in one place? The risk is the same as it ever was: data loss. However, storing a terabyte of data in one place certainly makes the risk of data loss more acute. Experts agree that it's very important to match these drives to the right tasks. For now, it looks like that's still secondary storage. "When it comes to nearline storage, its all about capacity," says Willis Whittington, senior manager of market development at Seagate Technology. And while Whittington was unwilling to comment on specific release dates for Seagate disks larger than 1TB, he did say that "You can expect to see a 40% to 50% increase in aerial density from generation to generation." With disks this large, rebuild time for failed drives is a legitimate concern. That's why RAID 6 is often recommended, as it protects against dual-disk failure. However, "RAID 6 is duct ...

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Features in this issue

  • Survey Says: Still coping with capacity

  • Solid-state storage finds its niche

    by  Alan Radding

    Storage managers facing critical storage performance problems and needing maximum IOPS have found a feasible option in solid-state disk. Solid-state storage is fast, cool and it barely sips power, but it's still far more expensive than traditional media.

  • Where encryption fits best

    by  Jerome Wendt

    Everybody knows they should encrypt tapes that go offsite, but many are still on the fence about where encryption should occur in their storage environments. There are a number of options, ranging from using your backup app's encryption capabilities to installing a purpose-built encryption appliance. We weigh the pros and cons of the available alternatives so that you can decide which approach best suits your shop.

Columns in this issue

  • Editorial: Web services for storage? It's already happening

    Web services for storage? It's already happening

  • Hot Spots: Web 2.0 storage: Challenges and choices

    by  Bob Laliberte

    Web 2.0 tools and strategies hold many potential benefits for businesses that deploy them, but their requirements for rapidly scalable storage and access, as well as persistent data, pose significant challenges for the IT staffs that need to build and manage the infrastructure.

  • Best Practices: Tackling data migration

    Data center projects often involve migrating data, which is frequently a painful process that can lead to unplanned downtime and outages. It's time to adopt consistent, repeatable migration practices. Selecting the right approach is highly dependent on infrastructure limitations, data and platform types, time constraints and staff capabilities.

  • Storage Bin 2.0: Virtually changing everything

    Server virtualization drives storage growth and dramatically drives the proliferation of storage networking. This is enabling the re-invention of how we manage, protect, store and access information.