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Vol. 1 No. 12 February 2003

PST Files Spell Trouble for Storage Administrators

Between end users treating their Inboxes as de facto filing cabinets, and federal regulators that specify lengthy e-mail retention times, administrators trying to keep their Exchange servers slim have their work cut out for them. A easy way to trim down Exchange data stores is for end users to use Microsoft Outlook's AutoArchive function, which archives old messages to a so-called Personal Store File (PST). This approach is used by "virtually everyone," says Andrew Barnes, European marketing director for KVS, which makes Enterprise Vault, an e-mail archiving tool for Microsoft Exchange. But PSTs are highly flawed. For one thing, they can get easily corrupted. And if they get too large, Outlook may not be able to open them. In terms of how they use storage space, PSTs are equally bad. For one thing, once messages are out of Exchange's purview, you lose the benefits of a single image store (SIS), whereby objects such as attachments are only written once. As a result, messages stored in PSTs actually take up more space than they do...

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Features in this issue

  • Midrange Arrays Inherit High-End Smarts

    Virtualization layers, once a feature of only the most expensive storage subsystems, are beginning to ship with midrange storage systems.

  • Optimize database storage

    by  Jim Booth

    In this article, author and consultant Jim Booth maintains that different database objects may each require their own type of storage to make the database operations run more smoothly. Whether you're dealing with tablespaces, indexes, redo logs or archives -- there's a right and wrong storage choice for each database component. This article explains what they are.

  • Inside the new Symmetrix

    by  Michael Desmond

    Inside the new Symmetrix

Columns in this issue