Red Hat DIRECTORY SERVER 7.1 Installation Manual

Also see for DIRECTORY SERVER 7.1: Manual Deployment guide Configuration Reference Administrator's guide

Contents

Chapter 2. Computer System Requirements 19112785-43: X11 6.6.1: Xsun Patch112970-07: SunOS 5.9: patch libresolv112951-09: SunOS 5.9: patchadd and patchrm Patch113277-24: SunOS 5.9: st, sd, and ssd Patch113579-06: SunOS 5.9: ypserv/ypxfrd Patch112908-14: SunOS 5.9: krb5 shared object Patch113073-14: SunOS 5.9: ufs and fsck PatchTable 2-5. Solaris 9 Patch List2.3.4.4. Tuning the SystemBasic Solaris tuning guidelines are available from several books, including Sun Performance andTuning: Java and the Internet (ISBN 0-13-095249-4). Advanced tuning information is availablein the Solaris Tunable Parameters Reference Manual (816-7137), which can be obtained fromhttp://docs.sun.com/db/doc/816-7137.2.3.4.5. Setting File DescriptorsThe system-wide maximum file descriptor table size setting limits the number of concurrent connec-tions that can be established to Directory Server. The governing parameter, rlim_fd_max, is set inthe /etc/system file. By default, if this parameter is not present, the maximum is 1024. It can beraised to 4096 by adding a line such as set rlim_fd_max=4096 to /etc/system and rebootingthe system.CautionThis parameter should not be raised above 4096 without first consulting your Sun Solaris supportrepresentative since it may affect the stability of the system.You should also set the soft limit for file descriptors:ulimit -n in csh limit desc 1024Use the dsktune utility (see Section 2.3.1 dsktune Utility) to learn about the hard and soft limitsfor file descriptors.2.3.4.6. Tuning TCP ParametersBy default, the TCP/IP implementation in a Solaris kernel is not correctly tuned for Internet or Intranetservices. The following /dev/tcp tuning parameters should be inspected and, if necessary, changed tofit the network topology of the installation environment.The tcp_time_wait_interval in Solaris 9 specifies the number of milliseconds that a TCPconnection is held in the kernel’s table after it has been closed. If its value is above 30000 (30 seconds)and the directory is being used in a LAN, MAN, or under a single network administration, it shouldbe reduced by adding a line to the /etc/init.d/inetinit file similar to the following: