D How to Complete Preinstallation Tasks Manually

This appendix provides instructions for how to complete configuration tasks manually that Cluster Verification Utility (CVU) and Oracle Universal Installer normally complete during installation. Use this appendix as a guide if you cannot use the fixup script.

This appendix contains the following information:

D.1 Configuring Kernel Parameters on HP-UX Itanium Systems

During installation, you can generate and run the Fixup script to check and set the kernel parameter values required for successful installation of the database. This script updates required kernel packages if necessary to minimum values.

If you cannot use the Fixup scripts, then verify that the kernel parameters shown in the following table are set to values greater than or equal to the minimum value shown. The procedure following the table describes how to verify and set the values manually.

Note:

The kernel parameter values in this section are minimum values only. For production database systems, Oracle recommends that you tune these values to optimize the performance of the system. Refer to your operating system documentation for more information about tuning kernel parameters.
Parameter Minimum Value
executable_stack 0
ksi_alloc_max 32768
max_thread_proc 1024
maxdsiz 1073741824 (1 GB)
maxdsiz_64bit 2147483648 (2 GB)
maxfiles 1024
maxfiles_lim 63488
maxssiz 134217728 (128 MB)
maxssiz_64bit 1073741824 (1 GB)
maxuprc 3686
msgmni 4096
msgtql 4096
ncsize 35840
nflocks 4096
ninode 34816
nkthread 7184
nproc 4096
semmni 4096
semmns 8192
semmnu 4092
semvmx 32767
shmmax 1073741824
shmmni 4096
shmseg 512
tcp_largest_anon_port 65500
udp_largest_anon_port 65500

Note:

  • If the current value for any parameter is higher than the value listed in this table, then do not change the value of that parameter.

  • The following kernel parameters are obsolete on HP-UX 11.31. You do not specify values for these parameters:

    msgmap

    msgseg

  • If you do not use HFS, then retain the default ninode value.

To display the current value or formula specified for these kernel parameters, and to change them if necessary:

For HP-UX Itanium:

  1. Enter the following command to start the kcweb application:

    # /usr/sbin/kcweb -F

  2. Check the value or formula specified for each of these parameters and, if necessary, modify that value or formula.

    If necessary, refer to the kcweb online Help for more information about completing this step.

Note:

If you modify the value of a parameter that is not dynamic, then you must restart the system.

D.2 Setting UDP and TCP Kernel Parameters Manually

If you do not use a Fixup script or CVU to set ephemeral ports, then use NDD to ensure that the kernel TCP/IP ephemeral port values are broad enough to provide enough ephemeral ports for the anticipated server workload. Set the port value high enough to avoid reserved ports for any applications you may intend to use.

Use the following commands to check your current range for ephemeral ports:

# /usr/bin/ndd /dev/tcp tcp_largest_anon_port

65535

In the preceding example, tcp_largest_anon_port is set to the default value.

If necessary, edit the file /etc/rc.config.d/nddconf and add entries to update the UDP and TCP ephemeral port values. For example:

TRANSPORT_NAME[0]=tcp
NDD_NAME[0]=tcp_largest_anon_port
NDD_VALUE[0]=65500
 
 
TRANSPORT_NAME[1]=udp
NDD_NAME[1]=udp_largest_anon_port
NDD_VALUE[1]=65500

Ensure that the entries are numbered in proper order. For example, if there are two entries present for the TCP and UDP ports in nddconf, then they are numbered 0 through 1: TRANSPORT_NAME[0]=tcp and TRANSPORT_NAME[1]=udp.

See Also:

"Setting TCP Network Protocol Buffer for Direct NFS Client" if you use Direct NFS Client