Disk volumes mounted under this directory.This includes system log files (/var/log) packages and database files (/var/lib) emails (/var/mail) print queues (/var/spool) temp files needed across reboots (/var/tmp).Solaris is SunOS packaged with a number of additional tools and a graphical user interface (GUI) environment.Since Sun Microsystems did not offer Solaris until SunOS 4, SunOS and Solaris have different version conventions (e.g., Solaris 1 includes SunOS 4, while Solaris 2 includes SunOS 5). Content of the files that are expected to grow can be found under this directory. SunOS is a Sun Microsystems implementation of the Unix operating system.Contains certain other links such as spool, news, man, mail.Contains /usr/bin which is been linked from /bin.Files under this directory are deleted when system is rebooted.Directory that contains temporary files created by system and users.This is a virtual filesystem with text information about system resources.For example: /proc/ directory contains information about the process with that particular pid. This is a pseudo filesystem contains information about running process.Contains information about system process.For example: /platform/SUNW,SPARC-Enterprise-T3120, /platform/SUNW,Sun-Blade-T6340.add-on applications should be installed under either /opt/ or /opt/ sub-directory.ฤก1.Contains add-on applications from individual vendors.Empty folder generally used for mounting file systems.For example: libmtsk.so, libncurses.so.5.7.Contains library files that supports the binaries located under /bin and /sbin.All binaries are located under /usr/bin.But, the commands located under this directory are used typically by system administrator, for system maintenance purpose.Just like /bin, /sbin also contains binary executables.Contains kernel components common to all platforms within a particular instruction set that are needed for booting the system.Home directories for all users to store their personal files.For example: /etc/services, /etc/nf, /etc/nf.This also contains startup and shutdown shell scripts used to start/stop individual programs.Contains configuration files required by all programs.These include terminal devices, usb, or any device attached to the system.
![solaris 10 vs 11 solaris 10 vs 11](https://docs.oracle.com/cd/E53394_01/html/E54790/figures/sriov_vf.jpg)
/ is also the root account home directory.Only root user has write privilege under this directory.Every single file and directory starts from the root directory.This article is similar, but for Solaris. Earlier we discussed about Linux Directory Structure.