Dstat: Versatile resource statistics tool

Meet Dstat, the Versatile resource statistics tool by Dag Wieers.

Dstat is a versatile replacement for vmstat, iostat, netstat, nfsstat and ifstat. Dstat overcomes some of their limitations and adds some extra features, more counters and flexibility. Dstat is handy for monitoring systems during performance tuning tests, benchmarks or troubleshooting.

Dstat allows you to view all of your system resources instantly, you can eg. compare disk usage in combination with interrupts from your IDE controller, or compare the network bandwidth numbers directly with the disk throughput (in the same interval).

Dstat gives you detailed selective information in columns and clearly indicates in what magnitude and unit the output is displayed. Less confusion, less mistakes.Dstat is unique in letting you aggregate block device throughput for a certain diskset or networkset, ie. you can see the throughput for all the block devices that make up a single filesystem or storage system.

Dconf: System config collector

Recommended tool for any linux distro: Dconf by Dag Wieers.
Dconf is a tool to collect a system’s hardware and software configuration. It allows to take your system configuration with you or compare systems (like nodes in a cluster) to troubleshoot HW or SW problems.

Dconf is also useful in projects where you have to manage changes as a team. Dconf can send out changes to your systems to a list of email addresses so that they can be revised.

As a sysadmin, you won’t become too paranoid if less experienced people have root-access. As a consultant, you won’t feel isolated if you don’t have remote access to your systems. As a support engineer, you won’t become frustrated if a customer has fiddled around with some important config file and you have to find what.