Optional Features
164
HA-Fabric Manager User Guide
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Click in the Threshold % column and enter a value in the range of 1
through 99.
Note:
If no threshold is entered for a port, a default value is used that is based on port
type (1 Gb/s or 2 Gb/s) and channel bandwidth. This field cannot be left blank.
4. Set Event Notification options. Note that, if enabled, these notifications
occur the first time the events occur. Notifications are not resent while the
problem persists.
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Unresolved Congestion—Click this check box to display a check mark
and enable notification. If enabled, an “unresolved congestion” entry is
made to the Event Log and an SNMP trap are generated if trap recipients
are configured through the Configure SNMP dialog box.
An unresolved congestion event occurs when the rerouting algorithm
cannot find a path for rerouting data flow and relieving congestion on
an ISL.
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Back Pressure—Click this check box to display a check mark and enable
this option. If enabled, a back pressure entry is made to the Event Log
and an SNMP trap are generated if trap recipients are configured through
the Configure SNMP dialog box.
A back pressure event occurs when the percentage of time the ISL has no
available BB_Credit exceeds the low BB_credit threshold. A separate
event also occurs when the back pressure condition ends.
5. Set the Low BB_Credit Threshold.
Note:
Using default settings for low BB_Credit threshold should work well in most
cases. This step is not required.
The threshold value is the percentage of time that the transmitting link has no
BB_Credit. This value is also used when determining routes for a transmit
link. An ISL that has no BB_Credit for longer than this time percentage
cannot be the recipient of traffic rerouted from other ISLs. Traffic on this ISL
may be rerouted by Open Trunking even if the ISL is not congested.
Two options are available:
Содержание 316095-B21 - StorageWorks Edge Switch 2/24
Страница 18: ...Contents 18 HA Fabric Manager User Guide ...
Страница 26: ...About this Guide 26 HA Fabric Manager User Guide ...
Страница 42: ...Introduction and General Information 42 HA Fabric Manager User Guide ...
Страница 126: ...Monitoring SAN Products 126 HA Fabric Manager User Guide ...
Страница 210: ...Configuring Zoning 210 HA Fabric Manager User Guide ...
Страница 264: ...Configuring Remote Workstations 264 HA Fabric Manager User Guide ...
Страница 268: ...Editing Batch Files 268 HA Fabric Manager User Guide ...