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Chapter 2. System Requirements
required by Directory Server. The dsktune utility even returns information required for tuning the host
server's kernel parameters. This simplifies configuring the machine for Directory Server.
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, 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.
2.3. Red Hat Enterprise Linux 4 and 5
Directory Server is supported on two versions of Red Hat Enterprise Linux:
• Red Hat Enterprise Linux 4 AS and ES on x86 and x86_64 platforms
• Red Hat Enterprise Linux 5 Server on x86 and x86_64 platforms
NOTE
Red Hat Directory Server is also supported running on a virtual guest on a Red Hat
Enterprise Linux 5 virtual server.
Both Red Hat Enterprise Linux versions 4 and 5 on 32-bit and 64-bit platforms have the same system
requirements, as listed in
Requirements". The patches required are listed in
16
Table 2.2, "Red Hat Enterprise Linux Operating System and Hardware
Section 2.3.1, "Red Hat Enterprise Linux
Patches",
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