How can I tell my SAN is properly tuned?

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There are a couple of simple ways to tell if your SAN performance needs tuning:

1.) If the application is not meeting response times, SLA's (Service Level Agreements), or customer service commitments.

2.) By using performance measurement software (IOstat, SAR, Perfmon etc), to drill down to discover specific I/O performance metrics. The most common symptom is disk I/O queuing where the queue depth is greater than 1. The greater the queue depth, the more significant the performance bottleneck.

There are of course other bottlenecks that exist in a SAN, of which many are server related, such as CPU and Memory as well as application-specific issues. A comprehensive performance review or audit can detect these types of bottlenecks and others.

 

 

 

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Imperial SANaccelerator Receives Brocade Fabric Aware Status for Interoperability - November 11, 2002

 

Tuning Storage Area Networks with Solid State Disk - DM Direct Online - September 27, 2002

 

Imperial & Tek-Tools Partner for SRM  - September 24, 2002

 

Imperial & FalconStor  Partner for SAN-Based SSD Cache - September 16, 2002

 

Solid State Disk Gives SANs Performance - SearchStorage - August 12, 2002

 

Imperial SANaccelerator Ably Lives Up to Its Name - eWeek - July 29, 2002

 

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The Clipper Group Navigator Report

IDC Bulletin on SSD

The High-Performance Alliance: SAN, SSD, and Virtualization

Tuning SANs with SSD
 

 

 

SednaTech - Accelerating Application Performance

 

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