IBM DS4000 FC Host bus adapter settings, BIOS address, Revision, Interrupt level, Frame size

vExit FASt!UTIL

You can access the host bus adapter settings through the Configuration Settings menu in Fast!UTIL. See “Host bus adapter settings” and“Advanced FC 4Gbps PCI-X Adapter Settings” on page 25 for detailed information on the settings.

Host bus adapter settings

You can modify most of the host bus adapter settings. The current default settings for the host bus adapter are listed in “Advanced FC 4Gbps PCI-X Adapter Settings” on page 25. These settings are described following the table. You can modify the following default host bus adapter settings.

BIOS address

The BIOS address is the I/O address where the BIOS code is stored when you press Ctrl+Q or when you have the BIOS code enabled for starting from the root directory. This is the address of the BIOS code in ROM shadow memory. Multiple adapters can be installed in the server, but only one BIOS instance is loaded for all of the adapters.

Note: The BIOS code is loaded from the first port of the first adapter that the server recognizes. This code is used for all remaining DS4000 FC 4Gbps PCI-X Single Port and DS4000 FC 4Gbps PCI-X Dual Port adapters in the same bus or server. The level of BIOS code that is loaded does not affect other adapters with earlier BIOS code levels.

Revision

The BIOS revision is the revision number of the BIOS code that is loaded from the first FC 4Gbps PCI-X Adapter that the server recognizes. Each FC 4Gbps PCI-X Adapter in the server has the same BIOS code revision number because only one BIOS code instance is loaded.

FC 4Gbps PCI-X Adapter serial number

The adapter serial number is located on the noncomponent side of the adapter. See Figure 1 on page 3 for the location of the serial number label.

Interrupt level

The interrupt level is the interrupt that is used by the FC 4Gbps PCI-X Adapter. The interrupt level can change when the operating system is installed.

FC 4Gbps PCI-X Adapter port name

This is the worldwide port name.

Host adapter BIOS

When this setting is Disabled, the ROM BIOS on the FC 4Gbps PCI-X HBA is Disabled, freeing space in upper memory. This setting must be Enabled if you are booting from fibre channel disk drive attached to the PCI-X board.

The default is Disabled.

Frame size

This setting specifies the maximum frame length supported by the FC 4Gbps PCI-X HBA. The default size is 2048, which provides maximum performance for F-Port (point-to-point) connections.

Loop reset delay

After resetting the loop, the firmware refrains from initiating any loop activity for the number of seconds specified in this setting. The default is 5 seconds.

24IBM System Storage DS4000 FC 4Gbps PCI-X Single/Dual Port HBA: Installation and User’s Guide