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Replicating apm monitors using flow monitor, Creating flow monitor flows – Brocade Flow Vision Administrators Guide (Supporting Fabric OS v7.3.0) User Manual

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A sample use case would be to monitor throughput statistics for inbound traffic between a source
device and a destination device.

Monitoring LUN level statistics

on page 52 provides an example

of the command and the results for this use case.

• Monitoring of various frame types at a switch port to provide deeper insights into storage I/O access

patterns at a LUN, reservation conflicts, and I/O errors. Examples of the frame types that can be
monitored include SCSI Aborts, SCSI Read, SCSI Write, SCSI Reserve, all rejected frames, and
many others. Refer to

Flow frametype parameters

on page 19 for a list and description of the frame

types that can be monitored.

• The SCSI Read/Write Frame Count and SCSI Read/Write Data statistics are supported only for

F_Ports for any flow configuration where either srcdev or dstdev exists on the switch, and the flow is
defined using a combination of srcdev, dstdev, ingrport, or egrport (with or without bidir), or a
combination of srcdev, dstdev, lun, ingrport, or egrport.

• Integration with the Monitoring and Alerting Policy Suite (MAPS) service to enable threshold-based

monitoring and alerting based on flows. Refer to the Monitoring and Alerting Policy Suite
Administrator's Guide
for more information on integration with MAPS.

Replicating APM monitors using Flow Monitor

It is possible to replicate standard Advanced Performance Monitor (APM) functionality using Flow
Monitor.

For information on replicating standard APM functionality using Flow Monitor, refer to the following
links:

Creating an end-to-end monitor equivalent

on page 55

Creating a frame monitor equivalent

on page 55

Creating an ingress or egress Top Talker monitor equivalent

on page 56

Creating an end-to-end monitor equivalent

on page 55

Creating Flow Monitor flows

To create a Flow Monitor flow, enter the flow --create flowname -feature monitor parameters
command using the parameters listed in the following table. The figure

Frame and port parameters

on

page 17 illustrates how the frame and port parameters apply to a flow.

Flow Monitor flow parameter combinations

TABLE 7

Parameters

Field names

Description

Port

ingrport

egrport

• One field only must be specified
• Values must be explicit
• Can be an F_Port, E_Port, or EX_Port on a local switch

Frame

srcdev

dstdev

lun

frametype

• At least one field must be specified
• Values for srcdev and dstdev can be explicit or "*" ("*" indicates

learned flows)

• Values for lun and frametype must be explicit

Optional keyword parameters

Replicating APM monitors using Flow Monitor

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Flow Vision Administrators Guide

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