netsharepoll

A simple shell script to connect to a network share and read a remote file at a specified interval, useful for generating baseline data on the performance of the network share for troubleshooting purposes.

Features

• Designed to be deployed into a client environment and gather basic performance metrics by reading from one or more network shares.
• Will connect to a network share at the configured interval, navigate to a directory, and read the contents of a specified file.
• Supports accepting an array of multiple remote file locations which are read in a round robin format on each iteration of the script.
• Data is appended to a log file in csv format with the network share, remote file, timestamp, and duration in ms of the operation.
• If the remote read fails, "FAIL" will be inserted for the duration value.
• If the remote file does not exist, "MISSING" will be inserted for the duration value.
• If the remote connection cannot be established, "CONNECT FAIL" will be inserted for the duration value.
• Script will make sure that only one instance is running at one time, if it is executed multiple times the subsequent executions will abort.
• For unattended execution, schedule the script to run every minute in cron. The script will automatically begin on boot, and if it crashes it will resume within 60 seconds.
• To fetch log files remotely, consider scheduled mailx, mutt, or scp to a remote server. Alternatively, set up a basic samba share and fetch from another machine on the network.
• Currently supports smb only (Windows shares)

Usage

1. In netsharepoll.sh, configure NETSHARE, USERNAME, PASSWORD, REMOTEFILES, and INTERVAL.

2. Run netsharepoll.sh in a terminal session, or schedule it to run in cron.

3. netsharepoll.sh will continue to run until killed. Output is written in csv format in LOGPATH and can be opened by any spreadsheet program.

To gather data on a second server simultaneously, make a copy of netsharepoll.sh, change the NETSHARE, USERNAME, PASSWORD, and REMOTEFILES variables so they are different, and run as normal.

Supported Platforms

netsharepoll has only been tested on CentOS 7. It should also work on any other Redhat-compatible Linux distribution.