I previously posted on how to create a script that monitors your Celerra replication jobs. I have an intranet web page that is updated daily with many other reports (most of which I’ve posted about here), so I thought I’d add this one to the web page as well rather than having to search through my inbox for it every day.
Developing an easy and automated method of getting files from the Celerra to a windows based web server was my challenge. I figured out an easy way to do this with FTP. As my internal windows web server is also my internal FTP server, I can place the file directly in the public folder for easy web publishing. Now that I’ve got the report working and updating on the intranet page every day my next task will be to come up with a more secure method using SSH or SCP, but this works well for now.
The big challenge in creating a bash script using FTP is figuring out how to pass the user id and password. I tried various methods unsuccessfully and finally settled on using the .netrc file. Create an empty file named .netrc in your home directory (in my case I put it in /home/nasadmin) with the following syntax:
machine <ftp_server_name> login <ftp_login_id> password <ftp_password>
Once that is created, you need to do a chmod 600 on the .netrc file in order for it to work. If the permissions are not set to 600 on that file the auto-login to the FTP server will fail.
My next step was to create the script that sends the replication status report to the IIS web server:
#!/bin/bash cd /home/nasadmin/scripts ftp <ftp_server_name> <<SCRIPT put <filename>.csv quit SCRIPTI always chmod the script with 755 and +X after creating it in vi. The script always ran fine manually, but I struggled for a while getting it to work properly when run from crontab. I figured out that you must cd to the correct directory in the script before you call the ftp command, if not you will get “file not found” errors when you run it. I was always running it manually from within that directory, so I didn’t immediately catch that problem. 🙂
I then added the above script to crontab on the Celerra. I run it at 6AM every morning with the following entry:
0 6 * * * /scripts/repl_status.sh
For those not familiar with cron, you can add an entry using “crontab -e”, and list your current entries with “crontab -l”. The first two entries in the line “0 6” represent minutes and the hour of each day, in this case it will run at 6:00AM every day.
I have a download link to the csv file on my web page, and I also have a script on my web server that converts the csv file to HTML output with a perl script called csv2html.pl so the data can be easily viewed without having to download the csv and open it in excel. You can find csv2html.pl easily with a google search, I’ve blogged about it in previous posts as well.
That’s it! An easy way to automatically push your reports to another server from the Celerra. Now that I have the transfer method down, I’ll be adding more daily reports in the near future. If anyone has experience doing this type of transfer from a Celerra (or Linux server) to a windows server via SSH or SCP, please comment! 🙂