SCSI Flow Statistics Overview

The statistics that can be collected for SCSI flows include the following:

• SCSI reads
• Number of I/Os
• Number of I/O blocks
• Maximum I/O blocks
• Minimum I/O response time
• Maximum I/O response time
• SCSI writes
• Number of I/Os
• Number of I/O blocks
• Maximum I/O blocks
• Minimum I/O response time
• Maximum I/O response time
• Other SCSI commands (not read or write)
• Test unit ready
• Report LUN
• Inquiry
• Read capacity
• Mode sense
• Request sense
• Errors
• Number of timeouts
• Number of I/O failures
• Number of various SCSI status events
• Number of various SCSI sense key errors or events

To take advantage of this feature, only the initiator must be directly attached to an SSM.

Note     The SCSI flow statistics feature requires the Enterprise Package license installed only on the initiator switches.

Note     For SCSI flow statistics, the initiator must connect to an SSM on a Cisco MDS switch while the target can connect to any other switch in the fabric. The SCSI flow initiator and target cannot connect to the same switch.

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