Product guide

13
Symmetrix Fibre Channel with Qlogic HBAs on UnixWare 7
Arbitrated Loop Configurations
Configuring the HBA
Driver
Setup Checklist step 6
The proper configuration of the /etc/conf/pack.d/qlc2200/space.c file
is crucial for Symmetrix host integration and driver behavior. The
driver configuration file contains important information about how
the driver should behave. The file is created automatically when the
HBA driver is installed.
Configuring the Driver
Configuration File
Setup Checklist step 6a
You can find the QLA2200F driver configuration file space.c in the
/etc/conf/pack.d/qlc2200 directory. The file contains two variable
settings for an arbitrated loop environment.
After all changes have been made to /etc/conf/pack.d/qlc2200/space.c, the
kernel must be rebuilt and the system rebooted.
• qlc2200_internal_timeout — This variable sets the timeout in
case of a link-down or Symmetrix off-line condition. You should
set this variable to 60 seconds to ensure proper fault tolerance:
ushort qlc2200_internal_timeout = 60;
After 60 seconds, mounted file systems will be disabled and all
I/O to the failed device will be terminated. Because of SCO
memory implementations with vxfs file systems, vxfs file systems
could hang if this setting is greater than 60 seconds.
• qlc2200_enable_binding — Set this variable to 0 for FC-AL:
char qlc2200_enable_binding = 0;
After all changes have been made to /etc/conf/pack.d/qlc2200/space.c
the kernel must be rebuilt and the system rebooted. Proceed to
Rebuilding the Kernel.
Rebuilding the Kernel Setup Checklist step 6b
To rebuild the kernel, follow these steps:
1. Log in as root.
2. Type
cd /etc/conf/bin ENTER to change to the correct directory.
3. Type
./idbuild -B ENTER to rebuild the kernel.
4. Type
./idcpunix ENTER to relink the kernel.
5. Type
init 6 ENTER to reboot the system.