Identify SAN Related Issues That Impact Applications
Application Insight collects various host specific information including port throughput, errors, and traffic balance ratios between paths. By analyzing this information, storage teams can:
Validate Multi-Path Operations
SANscreen Foundation takes logical and physical configuration information and constructs a service model of exactly which paths a particular application uses to access its data. Working with the analysis accomplished by SANscreen Foundation, Application Insight understands which hosts have dual path redundancy configured. By applying switch port performance information to the path data, Application Insight can determine which hosts do not have balanced traffic down redundant paths and alert the infrastructure team.
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Congestion Analysis
Application Insight understands all the data paths taken by an application to its designated storage volumes. Hence when congestion occurs at a switch or array port, Application Insight can work backwards and reveal the contributing hosts and their relative percentage of traffic to a particular port.
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Balancing Host Traffic
Ideally, application traffic should be balanced across all host ports. However, application issues, congestion issues and hardware problems may cause situations where application traffic is not balanced. Application Insight enables infrastructure teams to easily validate that traffic is balanced over the course of an hour, day, week or year and perform root cause analysis if an imbalanced situation exists.
Troubleshoot Errors
Identifying errors in the fabric by simply monitoring several ports for an interval of time is a challenging assignment. Errors could be transient in nature, may gradually build, or may cascade from a single root cause. Application Insight’s ability to present 7 days of data for all the ports in the fabric enables administrators to locate and troubleshoot fabric errors more effectively than simple port monitoring tools.
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