Compaq Fast Wide SCSI and Wide Ultra SCSI Controllers

Preconfiguration Information

• Ensure that the Compaq 825 EISA controller is properly installed in one of the EISA slots or that the Compaq 825 or 875 PCI controller is in one of the PCI slots in the server.

• EISA systems only: Configure the system using the Compaq EISA configuration utility (ECU version 2.34 and later) so the system recognizes the Compaq 825 or 875 controller(s).

Configuration Procedure

1. Install the Solaris software.

2. Modify the driver configuration file /kernel/drv/cpqncr.conf.

   This file specifies the valid configurable parameters for the driver:

   • tag_enable: This property enables or disables tagged queuing support by the driver and can be set to the following values:

     • 0 - Disabled (Default)

     • 1 - Enabled

   • alrm_msg_enable: This property enables or disables Alarm messages due to faults in the Compaq Storage system connected to the 825 or 875 controller. The valid values are:

     • 0 - Disabled

     • 1 - Enabled (Default)

   • debug_flag: This property enables or disables debug messages from the driver. The valid values are:

     • 0 - Disabled (Default)

     • 1 - Enabled

   • queue_depth: This property specifies the number of active requests the driver can handle for a controller. The maximum and default value for this property is 37; the minimal value is 13. You can reduce the value to support multiple controllers if you cannot allocate enough memory while trying to load the driver.

   • board_id: This property specifies additional controller IDs the driver has to support. The driver currently supports Compaq 825 and 875 controllers. It recognizes the board ID for Compaq 825 Fast Wide SCSI and Compaq 875 Ultra SCSI controllers by default.

   • ignore-hardware-nodes: Set this property to 1.

3. To activate the configuration changes, as root type:

   # touch /reconfigure # reboot