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Vol. 3 No. 10 December 2004

Faster DB failover in view

Keeping a database running at all costs can be painful. Traditional approaches to database high availability (HA), such as running Veritas Cluster Server or Microsoft Cluster Server, require IT managers to double their administrative duties, and then some. "Everything you do to the primary server, you have to do to the secondary server," says Steve Norall, director of marketing at PolyServe, Beaverton, OR, maker of the PolyServe Matrix Server clustered file system for Linux and Windows. Traditional HA approaches can also take a long time to get a secondary server online. A failure first needs to be detected and then the secondary server has to claim the disk through a SCSI reserve/release command; then it must check and restore the file system, mount the file system and, finally, load Oracle. This can easily take 20 to 30 minutes. "It's by no means instantaneous," Norall says. PolyServe's solution to the database HA problem relies, not surprisingly, on its clustered file system software. It works like this: Run Matrix Server on ...

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Features in this issue

  • Tape price hikes looming

    by  Alex Barrett

    In the coming months, expect to pay more for tape cartridges.

  • Match snaps to apps

    Snapshots are key to most shops' backup and recovery plans. But implementing them requires application analysis to determine the best type of snapshots to use and how often to take them.

  • Stress-free firmware upgrades

    Firmware upgrades can be daunting, but you can take some of the fear and frustration out of the process by preparing detailed documentation of your storage environment.

  • Storage salaries edge up

    Storage's second annual Salary Survey finds salaries and bonuses inching upward despite a still sluggish economy. Even with hiring remaining flat, 2005 looks promising for storage salaries.

Columns in this issue

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