Acer PCI Disk Array Controller Drivers 08P4100 - Manual (Page 71)

SCO OpenServer
Manual No. 775079 5-11
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Updating a Previously Installed Driver
To install the Mylex Disk Array Controller into an existing system to replace
an older version of the driver, perform the following procedure:
1. Make sure you are in single-user mode (init 1), then install the Mylex
mdac drivers by running the installpkg utility. Insert the “Software Kit
SCO OpenServer Driver diskette.”
# init 1
# installpkg
2. When the message prompt asks for a package name, type mdac.
Please enter the names of the packages you
wish to install, or q to quit: mdac
3. A message prompt will advise you that a mdac is already installed and
will ask you to confirm that you want to replace it. Type y for yes.
There is already a mdac installed.
Do you want to replace it with the version
in madac? (y/n/q): y
4. Rebuild SCO UNIX kernel.
# cd /etc/conf/cf.d
# ./link_unix
5. Reboot the system to invoke the new kernel.
Tuning SCO for Maximum Performance
Best system performance can be achieved when using the Mylex Disk Array
Controller SCO UNIX mdac driver by fine-tuning certain UNIX parameters.
To perform this system tune-up, use the scoadmin utility. Select Hardware/
Kernel manager. Under the Kernel option select Tune Parameters. The
SDSKOUT parameter is located under Miscellaneous device drives and
hardware parameters and the NMPBUF parameters is located under Buffers
management. Refer to the SCO UNIX on-line documentation for
information on the scoadmin utility.