Verifying System Resources

Verify that your system is ready to accept the Sun xVM Ops Center server or proxy software before you proceed with the installation. This page describes the system resources to check.

These procedures assume that you are logged in as the root user on the system on which you intend to install Sun xVM Ops Center server or proxy software. You can check these system resources in any order.

To Check the Operating System Release

Verify that a release of the Solaris OS that is compatible with Sun xVM Ops Center software is installed. Sun xVM Ops Center 1.0 requires at least Solaris 10 Update 3 (11/06) for SPARC or x86 systems. The /etc/release file lists the Solaris OS release installed on your system. For example:

# cat /etc/release
                       Solaris 10 8/07 s10s_u4wos_12b SPARC
           Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 16 August 2007
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To Check the Available Disk Space

Use the df -h command to list the space utilization on the server, and verify that you have at least 60 GBytes available. For example:

# df -h
Filesystem             size   used  avail capacity  Mounted on
/dev/dsk/c1t0d0s0       65G   4.0G    61G     7%    /
/devices                 0K     0K     0K     0%    /devices
ctfs                     0K     0K     0K     0%    /system/contract
proc                     0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
swap                   5.1G   624K   5.1G     1%    /etc/svc/volatile
objfs                    0K     0K     0K     0%    /system/object
/platform/sun4u-us3/lib/libc_psr/libc_psr_hwcap1.so.1
                        65G   4.0G    61G     7%    /platform/sun4u-us3/lib/libc_psr.so.1
/platform/sun4u-us3/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
                        65G   4.0G    61G     7%    /platform/sun4u-us3/lib/sparcv9/libc_psr.so.1
fd                       0K     0K     0K     0%    /dev/fd
swap                   5.1G    32K   5.1G     1%    /tmp
swap                   5.1G    40K   5.1G     1%    /var/run

Sun xVM Ops Center primarily installs packages and consumes space below the /opt and /var/opt directory structures. In this example, the /opt and /var/opt directories are located within the root (/) file system, which has 61 GBytes of space available.

To Verify the Amount of System Memory

Use the prtconf command to display the amount of installed memory on your system. For example:

# prtconf | grep -i meg
Memory size: 4096 Megabytes
# 

At least 4 GBytes of installed memory is recommended for Sun xVM Ops Center server installations. At least 2 GBytes of installed memory is recommended for Sun xVM Ops Center proxy installations.

To Verify the umask Value

Verify that the umask in use for the root user or equivalent role is set to 0022. Different shells report this value differently. The following examples list output from the umask command for the Bourne shell, the Korn shell, and the C-shell, in descending order. In all three examples, the umask value is correct.

# sh
# umask
0022
# ksh
# umask
022
# csh
host# umask
22
host# 

To Verify That the SUNWgcc Package Is Installed

Sun xVM Ops Center uses the gcc compiler during the installation process. Verify that the SUNWgcc package is installed, and that the gcc compiler is located in /usr/sfw/bin.

# pkginfo SUNWgcc
system      SUNWgcc gcc - The GNU C compiler
# ls -l /usr/sfw/bin/gcc
-r-xr-xr-x   3 root     bin       122260 Jan 22  2005 /usr/sfw/bin/gcc
#

To Verify Network Access to Required Sun Web Sites

Use a web browser to verify that your system can access the following URLs:

https://getupdates1.sun.com
https://inv-cs.sun.com
https://inventory.sun.com

The https://getupdates1.sun.com site should display a login authentication screen for the Sun Update Connection Download Server. The https://inv-cs.sun.com and https://inventory.sun.com sites should display the Sun Connection page.

To Verify ssh Access for the root User

On systems where you intend to remotely install the Sun xVM Ops Center agent, verify that the ssh daemon is configured to allow root user logins. This is required on systems that Sun xVM Ops Center servers and proxies manage, in order to remotely install the Sun xVM Ops Center agent.

To verify ssh access for the root user, try using ssh to log in as root to the system. If that attempt succeeds, no further action is necessary. If that attempt fails, check the value of the PermitRootLogin parameter in the /etc/ssh/sshd_config file. If PermitRootLogin is set to no, edit the /etc/ssh/sshd_config file, and change the PermitRootLogin setting to yes. Then use the svcadm command to restart the svc:/network/ssh:default service. For example:

# svcadm restart svc:/network/ssh:default
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