HP is organising a UK event in January to attract Sun users who may be concerned about Oracle's plans for the Sun hardware business.
Marc Waters, strategy and integration manager at HP, said more than 50 businesses have begun migrating from Sun through HP's "Sun Complete Care" programme.
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According to Waters, Sun users can make significant savings by moving from legacy Sun Sparc hardware running Solaris Unix onto Red Hat, SuSE Linux or Windows Server.
He said Sun users were moving from Sparc-based servers to x86-compatible HP Proliant hardware, such as the Proliant DL785, an eight-core server, which Waters said is capable of replacing back-end Unix database severs.