The Sun Grid data processing service suffered a denial of service attack on its first day of operations this week, as remote attackers tried to crash the network.
The data processing network became officially open for business yesterday, and Sun made available a text-to-speech translation service for those wanting to try out the service.
This test service could be used for instance, to turn blog entries into podcasts.
However, a co-ordinated denial of service attack by a large number of remote computers connecting to the service tried to swamp the system and take it down.
To counter the attack, Sun moved the publicly available text-to-speech service to a protected part of the grid, where users had to sign in to get access.
Sun said the attack did not degrade performance for users connecting to the paid-for part of the grid that requires registration.
Sun Grid is aimed at large companies and institutions that need to access flexible amounts of data processing power, to handle peaks and troughs in their business or to deal with special projects.