Zoning considerations, Flow monitor, Flow monitor 5 – Brocade Network Advisor SAN + IP User Manual v12.1.0 User Manual
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Brocade Network Advisor SAN + IP User Manual
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Flow Vision features
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A maximum of 5 seconds worth of data is stored for any platform.
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This feature is only supported on ports operating at 8 Gbps or less.
on page 1610 for more information on Flow Mirror feature
limitations for flow definition parameters.
Zoning considerations
Zone checking is not required for the source device or destination device elements of a flow to be
mirrored. However regular zoning is enforced by the zoning application on the frames flowing
between the devices.
Flow Monitor
Flow Monitor allows you to monitor the network’s traffic pattern and provides statistics to make
capacity planning decisions based on the collected data.
Uses for Flow Monitor include:
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Monitoring SCSI commands and write data in flows from a host to a target or LUN.
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Monitor unidirectional flows from a host to target at an F_Port (either at host or target
port).
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Monitor flows from a host to a target at an individual E_Port or trunk.
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Monitoring unidirectional flows from a target to a host (read data).
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Gathering SCSI statistics such as the following:
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IOPS - the number of SCSI read, write I/O operations per second.
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Read, write data in bytes.
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SCSI frame or data rate in Mbps.
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Create individual flows for each NPIV virtual machine (VM) to a LUN.
The Flow Vision interface provide a single interface to manage flows and unifies different monitor
functions, such as end-to-end monitors and frame monitors. Flow Monitor provides the following
monitors:
•
End to End Monitor: Measures the traffic in terms of word count between a pair of ports (host
and target) ports using a 5-second sampling rate.
•
Frame based monitoring: Measures the transmitted frame count through a port with specific
values in the first 64 bytes of a frame using a 5-second sampling rate.
•
ISL monitoring: Measures the traffic transmitted via an ISL to different destination domains
using a 10-second sampling rate.
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Top Talker monitoring: Measures the flows that are major consumer of bandwidth on a port
using a 6-second sampling rate.
Flow Monitor provides a mechanism to define and monitor any flow parameter. Instead of only the
static combinations described above, you can use Flow Monitor to define your own flows using
source and destination devices, LUN IDs, and Frame Type as parameters to create a flow definition
for a specific use.