System Administration Guide: Advanced Administration

Displaying System Information

The following table describes commands that enable you to display general system information.

Table 15–1 Commands for Displaying System Information


Command	Man Page	System Information Displayed
`date`	date(1)	Date and time
`hostid`	hostid(1)	Host ID number
`isainfo`	isainfo(1)	Reports the number of bits supported by native applications on the running system, which can be passed as a token to scripts
`isalist`	isalist(1)	Identifies processor type for x86
`prtconf`	prtconf(1M)	Installed memory
`psrinfo`	psrinfo(1M)	Processor type
`showrev`	showrev(1M)	Hostname, host ID, release, kernel architecture, application architecture, hardware provider, domain, and kernel version
`uname`	uname(1)	Operating system name, release, version, node name, hardware name, and processor type

How to Determine If a System Can Run the 64–bit Solaris Operating Environment

Currently, the only platform capable of supporting the 64–bit Solaris operating environment is an UltraSPARC system. To verify if a system is an UltraSPARC system, use the following command:

$ uname -m
sun4u

If the output of the uname -m command is sun4u, then the machine is an UltraSPARC system.

You can verify that the machine is an UltraSPARC system by using the psrinfo command:

# psrinfo -v 		
Status of processor 0 as of: 05/30/01 13:48:46
  Processor has been on-line since 05/18/01 10:02:40.
  The sparcv9 processor operates at 333 MHz,
        and has a sparcv9 floating point processor.

If the processor type is sparcv9, the platform is capable of running the 64-bit Solaris operating environment.

How to Determine If a System Has 64-bit Solaris Capabilities Enabled

Use the isainfo command to determine if a system has 64-bit capabilities enabled, which means that the system is booted with the 64–bit kernel.

Examples—Determining If a System Has 64–bit Solaris Capabilities Enabled

The output for an UltraSPARC system running a 32-bit kernel appears as follows:

$ isainfo -v
32-bit sparc applications

This output means that this system is capable of supporting only 32-bit applications.

The output for an UltraSPARC system running a 64-bit kernel appears as follows:

$ isainfo -v
64-bit sparcv9 applications 
32-bit sparc applications

This output means that this system is capable of supporting both 32-bit and 64-bit applications.

Use the isainfo -b command to display the number of bits supported by native applications on the running system.

The output from a SPARC, x86, or UltraSPARC system running the 32–bit Solaris operating environment appears as follows:

$ isainfo -b
32

The output from a 64–bit UltraSPARC system running the 64–bit Solaris operating environment appears as follows:

$ isainfo -b
64

The command returns 64 only. Even though a 64–bit UltraSPARC system is capable of running both types of applications, 64–bit applications are the best kind of applications to run on a 64–bit system.

How to Display a System's Processor Type

Use the psrinfo -v command to identify a system's processor type. This command also displays the number of processors, as shown in the following example.

#psrinfo -v
Status of processor 0 as of: 02/24/2003 09:11:05
  Processor has been on-line since 02/03/2003 10:21:46.
  The sparcv9 processor operates at 600 MHz,
        and has a sparcv9 floating point processor.
Status of processor 1 as of: 02/24/2003 09:11:05
  Processor has been on-line since 02/24/2003 07:02:28.
  The sparcv9 processor operates at 600 MHz,
        and has a sparcv9 floating point processor.

On an x86 system, use the isalist command to identify the processor type.

#isalist
pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

How to Display Solaris Release Information

Display the contents of the /etc/release file to identify your Solaris release version.

$ more /etc/release
                       Solaris 9 s9_58shwpl3 SPARC
           Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 15 April 2002

How to Display General System Information

To display general system information, use the showrev command.

Examples—Displaying General System Information

The following example shows the showrev command output. The -a option displays all available system information.

$ showrev -a
Hostname: starbug
Hostid: nnnnnnnn
Release: 5.9
Kernel architecture: sun4u
Application architecture: sparc
Hardware provider: Sun_Microsystems
Domain: solar.com
Kernel version: SunOS 5.9 May 2002

OpenWindows version: 
X11 Version 6.6.1 5 April 2002

No patches are installed
$

You can also use the uname command to display system information. The following example shows the uname command output. The -a option displays the operating system name as well as the system node name, operating system release, operating system version, hardware name, and processor type.

$ uname
SunOS
$ uname -a
SunOS starbug 5.9 Generic sun4u sparc SUNW,Ultra-5_10
$

How to Display a System's Host ID Number

To display the host ID number in hexadecimal format, use the hostid command.

Example—Displaying a System's Host ID Number

The following example shows sample output from the hostid command.

$ hostid
80a5d34c

How to Display a System's Installed Memory

To display the amount of memory installed on your system, use the prtconf command.

Example—Displaying a System's Installed Memory

The following example shows sample output from the prtconf command. The grep Memory command selects output from the prtconf command to display memory information only.

# prtconf | grep Memory
Memory size: 128 Megabytes

How to Display the Date and Time

To display the current date and time according to your system clock, use the date command.

Example—Displaying the Date and Time

The following example shows sample output from the date command.

$ date
Thu May 31 17:44:58 MDT 2003
$