Provide a description  of the Juniper EX-series Ethernet switches file system.

Overview of the EX-series Ethernet switches File System for the EX 3200 and EX 4200:

The following list shows the key directories and file locations:

1. / - The root file system. Located on the switch’s boot device, which is normally the primary compact flash drive.

• /config - This directory is located on the boot device (normally the primary compact flash drive) and contains the current operational switch configuration and the last three committed configurations as well as the rescue configuration if one is saved. ( juniper.conf.gz , juniper.conf.1.gz -juniper.conf.3.gz and rescue.conf.gz)
  
  
  • /config/db/config : This contains up to 46 additional previous versions of committed configurations, which are stored in the files juniper.conf.4.gz through juniper.conf.49.gz.

• /var - This directory is also located on the boot device. This file system contains the following subdirectories:
  
  
  • /var/db/config : This has a symbolic link to /config/db/config
  
  
• /var/home : Contains users’ home directories, which are created when you create user access accounts. For users using SSH authentication, their .ssh file, which contains their SSH key, is placed in their home directory. When users save or load configuration files, those files are loaded from their home directory unless the users specify a full path name.

• /var/log : Contains system log and tracing files.  

• /var/tmp : Contains daemon core files (if present) and is the recommended location for storing temporary software and configuration files.