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Vol. 2 No. 8 October 2003

The trouble with measuring SAN performance

Fine-tuning your SAN Trying to isolate the cause of a performance issue in networked storage environment requires the collection of performance metrics in the data path. Here's a sampling of touch points a storage administrator may want to capture metrics on when troubleshooting a performance problem. Server CPU Speed Number Memory Amount Operating System I/O File system activity Database Number of threads or users Type and complexity of queries being run Storage Array Disk speed Back-end disk connectivity (Fibre Channel or SCSI) Cache or memory Front-end port count Connectivity Switches/Directors Number of hops Zoning Protocol Fibre Channel SCSI TCP/IP or iSCSI Channels Bandwidth Number of channels Speed Host bus adapters Firmware Driver Backplane Number Connection count It's the early morning telephone call every storage area network (SAN) administrator dreads. The system administrator, DBA and their managers are already on the phone. The issue? One of the mission-critical application databases is running slow and they think ...

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Features in this issue

  • Spend less on storage

    by  Marc Farley

    Serial ATA disks can save you big bucks, but there's a bigger story here. By using RAID and a SAN, you can overcome many of its inherent reliability and performance limitations. It's time to rethink many of your assumptions about storage costs.

  • The survey says:

Columns in this issue

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  • Asigra Cloud Backup Version 13

    Asigra Cloud Backup Version 13 provides an AWS Elastic Block Store Snapshot Manager and the ability to support Docker container ...

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  • Druva inSync 5.5

    Druva inSync 5.5 endpoint backup software stands out with its proactive compliance, cloud app integration, full text search and ...

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