HP A7533A - Brocade 4Gb SAN Switch Base, Administrator'S Manual

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Fabric OS 6.2 administrator guide 505
• PDCM values are read from the IPL; the default is “Allow All.”
• Advanced Zoning, if used, continues to be in force. If there are any differences in restrictions set up with
Advanced Zoning and PDCM, the most restrictive rules are automatically applied.
• RSCNs are sent to devices if PDCM results in changes to connectivity between a set of ports.
Changing fmsmode from enabled to disabled triggers the following events:
• A device reset is performed on the control device.
• PDCM is no longer enforced.
• RSCNs might be generated to some devices if PDCM removal results in changes to connectivity
between a set of ports.
• If a given port was set to “Block” or “Unblock,” that port remains disabled or enabled.
• Serialized access to switch parameters ceases.
Enabling fmsmode
1. Connect to the switch and log in as admin.
2. Enter
ficonCupSet fmsmode enable
.
Disabling fmsmode
1. Connect to the switch and log in as admin.
2. Enter
ficonCupSet fmsmode disable
.
FMSmode and FICON CUP
When a CUP license is installed, the transition from fmsmode disabled to fmsmode enabled triggers
notification to the host systems that the CUP feature is available. Without this notification, the host systems
never know that the CUP feature is available and, consequently, never try to communicate with it.
If you install a CUP license on a switch that already has fmsmode enabled, you must disable fmsmode first
and re-enable it after the license is installed so the host systems receive the notification that CUP is
enabled.
Setting up FICON CUP if fmsmode is already enabled
1. Verify that FICON Management Server mode is enabled by entering the
ficonCupShow fmsmode
command.
NOTE: If fmsmode is already enabled, disabling it might be disruptive to operation because ports that
were previously prevented from communicating will now be able to do so.
2. If FICON Management Server mode is enabled, disable it by entering the
ficonCupSet fmsmode
disable
command.
3. Install a CUP license key. See ” FICON CUP license considerations ” on page 508.
4. Enter the
ficonCupSet fmsmode enable
command.
The fmsmode setting
The
ficonCupShow fmsmode
command displays the effective
fmsmode
setting for the switch.
switch:admin> ficoncupshow fmsmode
fmsmode for the switch: Enabled
Setting the MIHPTO value
The missing interrupt handler process timeout (MIHPTO) is a configurable value that the CUP reports to the
channel. This value determines when the channel will timeout waiting for an expected response from the
CUP. If processing times are increased, it is possible to inadvertently timeout the channel because the CUP
is busier than normal.
The
ficonCupSet MIHPTO
command can be used to increase, decrease, or display the MIHPTO value
that the CUP is currently using. The changing of the MIHPTO is an offline procedure as there is no a way to