"The open source operating system is growing in both maturity
and its share of mission-critical deployments. While HP sells and
supports both HP-UX and Linux -- and sees a place for both -- it
maintains that Linux doesn't fit the same needs.
"In particular, Brian Cox, director of software planning and
marketing for Business Critical Systems at HP, told
InternetNews.com that he believes HP-UX is still a more mature
operating system."