Re: @mmeier
@eulampios
10+ years of support for a Linux? Where? LTS versions are 5years, a joke compared to what Solaris offers even for a single major version. And drivers are often compatible over two major versions
Solaris has better file system, better clustering, better thread handling and as of late 2012 better performance on the same hardware as Linux for J2EE based software. AND it is the set OS for most of our customers
A Linux Admin is "for distribution X using parts a, b, c". If that is your distribution, fine. If not - problem. A Solaris admin is for Solaris.
PostgresSQL is nice. But it is not capabel of keeping up with ORACLE (or DB/2) when it comes to clusters, high available systems and other stuff. Stuff some of our customers need. And Oracle performance on Solaris is better on the same hardware as of late 2012.
Three of our bigger customers use penable tablet pcs in the 500+ number with one planning penable convertibles for the next "replace notebooks" round. Linux won't work there since it lacks the necessary software and drivers
Other customers have a tools chain that is based on MS products. Not ours (we are a Java shop) but we need to integrate with that. Linux can't do that. And we are talking BIG (10.000+ clients) customers here