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Vol. 2 No. 9 November 2003

IBM unveils storage tank

For all the sweat, dollars and frustration that storage professionals have invested in implementing storage area networks (SANs), it's still not clear that SANs are delivering the full payback for these efforts. SAN File System Architecture Clients participating in SAN File System retrieve data in a two-part process. Clients equipped with the virtual file system request data from the metadata server, which provides a file's physical location, and issues locks. With that information, clients retrieve data from SAN-attached disks directly over the Fibre Channel SAN. Sure, compared to direct-attached storage (DAS), SANs are easy to scale, and they deliver consolidated management and backup, without sacrificing performance. But at the same time, says Brian Truskowski, IBM general manager for storage software, "whenever I talk to customers, they report that they're not really getting the maximum benefit" from their SAN. Helping storage administrators get more from their SANs was the stated intent of IBM Corp. when it announced its ...

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Features in this issue

  • Defragmenting Disks Falls by the Wayside

    The deal on disk fragmenting

  • Too many SAN islands

    by  Jeff Moad

    One of the main challenges to growing SANs is the proliferation of independent SAN islands. We look at how and why a multinational financial services company consolidated many islands into larger ones, but stopped short of a single, unified SAN.

  • Sane strategies for SAN growth

    What's the right way to design storage networks for growth? There's no simple answer to that question, but understanding the implications of storage- or network-centric approaches will help you make the right choices.

  • New directions for switches

    With all of the recent acquisitions and new partnerships forming this year, finding the right Fibre Channel switch for you is even more confusing. This article will help you chose the right one.

Columns in this issue