Reliability: Unix and Linux beat Windows
Yankee Group market researchers have presented the results of a study on server and operation system reliability for 2007. Compared to the previous year, annual downtime on all systems has dropped sharply – except on Windows server 2000 and 2003.
With between one and two hours of downtime per year, enterprise versions of Linux all performed at a similar level; at some five hours downtime, Debian was the poorest performer. Windows Server 2000 and 2003 had downtimes of ten and nine hours per year, respectively (99.9 per cent accessibility). The market researchers attribute that to a number of critical security patches issued in the summer and autumn of 2007, which forced administrators to take their servers off-line.