Throughput test using dd
December 18th, 2009 |
Technology |
Oneiric Systems |
No comments
When installing or tuning storage, it is nice to benchmark write performance from several hosts simultaneously. It is possible to accomplish this using the following command:
dd if=/dev/zero of=/Volumes/SAN/`hostname` bs=1g count=100
Assuming the hostname of the server is xserve01.domain.com, this command will write a 100GB file with the hostname of the computer to /Volumes/SAN/xserve01.domain.com
This command works well when run across several computers using Remote Desktop, and could be used to apply substantial load on a network server or SAN volume.