Chapter 2. System Requirements
14
•
Section 2.2.2, “Red Hat Enterprise Linux 4 and 5”
•
Section 2.2.3, “HP-UX 11i”
•
Section 2.2.4, “Sun Solaris 9”
Along with meeting the required operating system patches and platforms, system settings, like the
number of file descriptors and TCP information, should be reconfigured to optimize the Directory
Server performance.
Directory Server includes a tool,
dsktune
, which simplifies configuring your system settings. This
section describes what settings to change on the machine on which Directory Server is installed.
2.2.1. Using dsktune
After the packages for Directory Server are installed there is tool called
dsktune
which can scan a
system to check for required and installed patches, memory, system configuration, and other settings
required by Directory Server. The
dsktune
utility even returns information required for tuning the host
server's kernel parameters.
NOTE
The setup program also runs
dsktune
, reports the findings, and asks you if you want to
continue with the setup procedure every time a Directory Server instance is configured.
Red Hat recommends running
dsktune
before beginning to set up the Directory Server instances
so that you can properly configure your kernel settings and install any missing patches. On Red Hat
Enterprise Linux and Solaris, the
dsktune
utility is in the
/usr/bin
directory; on HP-UX, it is in
/
opt/dirsrv/bin
. To run it, simply use the appropriate command:
/usr/bin/dsktune
Red Hat Directory Server system tuning analysis version 10-AUGUST-2007.
NOTICE : System is i686-unknown-linux2.6.9-34.EL (1 processor).
WARNING: 1011MB of physical memory is available on the system.
1024MB is recommended for best performance on large production system.
NOTICE : The net.ipv4.tcp_keepalive_time is set to 7200000 milliseconds
(120 minutes). This may cause temporary server congestion from lost
client connections.
WARNING: There are only 1024 file descriptors (hard limit) available, which
limit the number of simultaneous connections.
WARNING: There are only 1024 file descriptors (soft limit) available, which
limit the number of simultaneous connections.
NOTE
dsktune
is run every time the Directory Server configuration script,
setup-ds-admin
, is
run.
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