HP StorageWorks 2.128 SAN Director Switch - Manual (Page 113)

Fabric OS 5.x administrator guide 113
NOTE: You cannot use the
portCfgPersistentEnable
and
portCfgPersistentDisable
commands to persistently enable and disable ports when FMS mode is on. See the procedure ” Persistently
enabling and disabling ports ” on page 115.
Changing fmsmode from
disabled
to
enabled
triggers the following events:
• Access to switch parameters is serialized.
• The active CUP configuration data is established as follows:
• Port and switch names are not read from the IPL; they remain as previously set.
• Port Block and Unblock values are not read from the IPL; they remain as previously set with the
portEnable
and
portDisable
commands.
• Prohibit Dynamic Connectivity Mask (PDCM) values are read from the IPL; the default is Allow All.
• HP Advanced Zoning, if used, continues to be in force. If there are any differences in restrictions set up
with HP Advanced Zoning and PDCM, the most restrictive rules are 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.
Setting up CUP when FMS mode is enabled
Fmsmode may be enabled and in use on a switch without a CUP License. The transition from fmsmode
disabled to fmsmode enabled with the CUP license installed triggers the notification to the host systems
that the CUP feature is available. Without this notification, the host systems never know the CUP feature is
available, and consequently never try to communicate with it. Hence, it is possible that fmsmode may
already be enabled on the switch.
If FMS mode is already enabled, set up CUP as follows:
1. Verify that FMS mode is enabled by entering the
ficoncupshow fmsmode
command.
If FMS mode is not enabled, see ” Enabling and disabling FMS mode ” on page 112.
CAUTION: If fmsmode is already enabled, disabling it might be disruptive to operation, because ports
that were previously prevented from communicating are now able to do so.
2. If FMS mode is enabled, disable it by issuing the
ficoncupset fmsmode disable
command.
3. Install a CUP license key as described in ” Adding and removing FICON CUP licenses ” on page 116.
4. Issue the
ficoncupset fmsmode enable
command.
Displaying the fmsmode setting
The
ficoncupshow fmsmode
command displays the effective fmsmode setting for the switch. For
example:
Displaying mode register bit settings
The mode register bits are described in Table 19 .
switch:admin> ficoncupshow fmsmode
fmsmode for the switch: Enabled