Monitoring Network Bandwidth and Disk I/O using BWM-NG
BWN-NG (Bandwidth-NG) is old and simple tool to monitor the bandwidth and disk I/O including the RAMdisk usage, this tool really helps the administrator to quickly monitor the bandwidth and disk I/O usages. Installation is pretty simple which can be done in just 2 minutes.The latest version 0.6 includes the disk I/O monitoring features but the older version does not have this features enabled. So make sure you have the 0.6 version if you setting up bwn-ng to monitor your disk I/O.
Features
- * supports /proc/net/dev, netstat, getifaddr, sysctl, kstat, /proc/diskstats /proc/partitions, IOKit, devstat and libstatgrab
* unlimited number of interfaces/devices supported
* interfaces/devices are added or removed dynamically from list
* white-/blacklist of interfaces/devices
* output of KB/s, Kb/s, packets, errors, average, max and total sum
* output in curses, plain console, CSV or HTML
* configfile
Install bwm-ng
Installation bwm-ng from source is pretty simple, just download the tar from http://www.gropp.org/bwm-ng/
- cd /usr/src
wget http://www.gropp.org/bwm-ng/bwm-ng-0.6.tar.gz
tar zxvf bwm-ng-0.6.tar.gz
cd bwm-ng-0.6
./configure && make && make install
Type bwm-ng -h and make sure you are able to see the command help menu
Network Monitoring using bwm-ng
Use the
- bwm-ng -u bits -d
bwm-ng -u bytes -d
Options to see all the NIC status in bits and bytes and -d is for dynamic output which displays in the KB/s and MB/s dynamically.
Disk I/O monitoring using bwn-ng
Monitoring disk I/O is pretty simple with bwn-ng
- bwm-ng -u bytes -i disk
Will list all the usage including the RAMdisk/dm and RAID I/O etc
