To simply display the number of Physical processors, simply run the command with the -p option as follows:

root@sunserver # psrinfo -p
2

where 2 implies that there are 2 physical processors installed on the system.

If you would like to check the number of Virtual Processors on each of these Physical processors then type the command with the “-pv” arguement as follows:

root@ server:/root$ uname -a

SunOS server 5.10 Generic_137111-02 sun4v sparc SUNW,SPARC-Enterprise-T5120

root@server:/root$ psrinfo -pv

The physical processor has 32 virtual processors (0-31)

  UltraSPARC-T2 (cpuid 0 clock 1165 MHz)

The above indicates that there was only one physical processor (UltraSPARC-T2) on the T5120 server which has 32 Virtual processors. Each virtual processor is an entity with its own interrupt ID, capable of executing independent threads.

In simple terms, the number of Virtual Processors supported by a physical CPU is

“Number of Core” x “Number of threads”

For instance, the above is on a T5120 server with the UltraSPARC-T2. This CPU  has 4 cores and each core can support 8 threads and that gives us 32 Virtual processors.

The number of Virtual processors on a Server is simply the total Virtual processors supported on each of the physical processor.

In the following T5140 server there are 2 Physical UltraSPARC-T2+ processors with 6 cores, each supporting 8 threads which means we get 48 Virtual processors per Physical processor and hence a total of 96 Virtual processors (sum of VPs on individual processors) for the server:

root@ bserver:/root$ uname -a

SunOS bserver 5.10 Generic_137111-02 sun4v sparc SUNW,T5140

root@ bserver:/root$ psrinfo -pv

The physical processor has 48 virtual processors (0-23 32-55)

  UltraSPARC-T2+ (cpuid 0 clock 1167 MHz)

The physical processor has 48 virtual processors (64-71 80-119)

  UltraSPARC-T2+ (cpuid 64 clock 1167 MHz)

In earlier versions of Solaris, the -p arguement is not supported and hence wouldn’t provide this summarised output on the counts of the physical and Virtual CPUs.

To install MySQL Database server on Solaris follow the procedures listed below:

Note: I've used MySQL-5.0.24a for Solaris 8. However, this is a very generic

procedure and I'm sure will work on other Solaris versions. 

Download the MySQL Package for solaris from

http://dev.mysql.com/downloads/mysql/5.0.html

Once downloaded unzip using

# gzip mysql-standard-5.0.24a-solaris8-sparc-64bit.tar.gz

Now, comes the first problem, you need to have GNU Tar installed on your Solaris server as there is bug in getting the classic Solaris one to work.

To download and install GNUTar, please click here. 

Untar using GNUTar by

# tar -xvf mysql-standard-5.0.24a-solaris8-sparc-64bit.tar

Now, install using

# pkgadd -d mysql-standard-5.0.24a-solaris8-sparc-64bit.pkg

This installs the software. You can be confirmed using

# pkginfo -l mysql

This will give a detailed output describing the installation.

Now, change dir to /opt/mysql/mysql/support-files

# cd /opt/mysql/mysql/support-files

Copy the my-middle.cnf as my.cnf and mysql.server to /opt/mysql/mysql/scripts

# cp my-middle.cnf ../scripts/my.cnf
# cp mysql.server ../scripts/

Now, change to /opt/mysql/mysql/scripts folder

# cd opt/mysql/mysql/scripts

Edit file my.cnf using vi

#vi my.cnf

Add the following lines to the file under [mysqld]

datadir=/opt/mysql/mysql/data
basedir=/opt/mysql/mysql
log
log-update

Similary, edit the mysql.server file and add the following lines:

# vi mysql.server

basedir=/opt/mysql/mysql
datadir=/opt/opt/mysql/mysql/data
conffile=/opt/mysql/mysql/scripts/my.cnf
mysql_daemon_user=mysql

Now, all done, run the mysql_install_db script as follows

# ./mysql_install_db –defaults-file=/opt/mysql/mysql/scripts/my.cnf

This creates the initial MySQL database.

Now, start MySQL using

cd . ; /opt/mysql/mysql/bin/mysqld_safe &

This will start MySQL.

Now, you need to set the password for root account

# /opt/mysql/mysql/bin/mysqladmin -u root password ‘newpassword’
# /opt/mysql/mysql/bin/mysqladmin -u root -h <hostname> password ‘newpassword’

This completes a successful installation of MySQL on your Solaris Server.