README
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上传日期:2013-05-04
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- ======================================
- DiskMon (getdisk.pl and showdisk.pl)
- ======================================
- by Steven Micallef <smic@wire.net.au>
- ---------------
- What they do
- ---------------
- getdisk.pl and showdisk.pl work on the client/server principal.
- showdisk.pl - runs off the 'server' displaying disk partition % used.
- getdisk.pl - runs off the 'client' and connects to the 'server' to get disk
- info off showdisk.pl.
- -------------------
- Before you begin
- -------------------
- Before you Install, you need the following:
- - Perl
- - Net::Telnet Perl Module.
- You can get this straight from:
- ftp.oleane.net/pub/CPAN/mirrors/modules/by-module/Net/Net-Telnet-3.01.tar.gz
- -------------
- Installation
- -------------
- The following steps apply to EACH MACHINE YOU WANT TO MONITOR...
- 1. Copy the showdisk.pl script to the host you wish to monitor.
- 2. In your /etc/inetd.conf, insert the line:
- df stream tcp nowait root <path of your TCP wrapper> <path of showdisk.pl>
- Of course, the TCP wrapper isn't mandatory, but if you want to restrict access
- to the viewing of free disk space, I really recommend you install it.
- 3. In your /etc/services file, put in the following line:
- df 9047/tcp
- The port you choose is up to you, but if you do change it from 9047, be sure
- to update getdisk.pl too (the port number is specified in the first few lines
- of the script).
- 4. kill -HUP your inetd
- 5. Test it by telnetting to the host at port 9047. You should get the
- following:
- bash~# telnet hostname 9047
- < usual connect messages >
- 30
- 40
- 10
- 20
- .
- .
- etc..
- Of course, the output depends on
- a) how many disks are on the machine, and
- b) how much space in % is used on each disk.
- If you didn't get any output, go back and make sure you did everything
- properly.
- --------------------------------
- Setting up getdisk.pl with MRTG
- --------------------------------
- The getdisk.pl script runs like so:
- ./getdisk.pl <hostname> <disk number>
- For example, doing a ./getdisk sparky 1 will show how much % of the first
- partition (usually the root partition) on sparky is used.
- So how do you map a number to a partition?
- On the host you installed showdisk.pl on, do the following:
- bash~# df -k
- Filesystem 1024-blocks Used Available Capacity Mounted on
- /dev/hda1 202222 78786 112993 41% /
- /dev/hdc3 2486311 1247138 1110635 53% /usr
- /dev/hdc1 1486150 375570 1033782 27% /backup
- ^
- The first disk is 1, the second 2, and so on.. |
- Example: |
- bash~# ./getdisk.pl hostname 3 |
- 27 <-------------------------------------'
- Please look at sample.cfg to see how to setup getdisk.pl with MRTG.
- ---
- I hope this is as useful to you as it has been to me. If you have any
- problems/bug reports/advice/complaints, email me.
- Enjoy.
- Steven Micallef
- <smic@wire.net.au>