18 IBM Flex System FC5022 2-Port 16Gb FC Adapter User’s Guide
Configuring the adapter
2
Storage instance-specific persistent parameters
You can modify default values for the following functions using specific BCU commands for driver
parameters:
• Authorization algorithm, policy, and secret
• Adapter name
• vHBA interrupt coalesce, delay, and latency
• Log level
• Path time-out value (TOV)
• PCIe maximum read request size
• Port maximum frame size, speed, topology, and name
• Port enable or disable
You can modify default values for these parameters using BCU commands and by modifying the
bfa.conf file. For more detailed information, refer to the “Adapter Configuration” appendix in the
Brocade Adapters Installation and Reference Manual.
Driver parameters should only be changed by power users with great caution.
Storage driver-level parameters
Driver-level configuration parameters are global parameters used by all storage driver instances. The
default values for the driver configuration parameters are compiled into the driver. Tools for configuring
these parameters depend on the operating system and parameter being configured.
Linux and VMware parameters
You can modify parameters for the following functions:
• Maximum scatter gather elements supported
• Maximum SCSI requests per LUN
• Fabric Device Management Interface (FDMI) enable or disable
• Host name
• Enable/disable auto-recover IOC on heartbeat failure
• Adapter log level setting
• MSIx interrupt enable or disable
• Maximum unassisted FC exchanges
• Maximum number of FCIP I/O requests
• Maximum number of remote ports
• Maximum number of scatter gather pages
• Maximum number of task management commands
• Maximum number of unsolicited FC receive buffers
• Operating system name
• OS patch level
• Number of elements in request queues
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