About a month ago I posted a question asking for users experiences and 
opinions with these two platforms (was posted in sun-managers as well) 
and what course of action they would take if they had it to do over 
again.
There was no overwhelming response favoring either side.  Secondly, as 
mentioned before, very little could be said from experience to support 
their decisions other than personal opinion.  All I can do is explain 
which platform we decided to go with and why.
The considerations that were included were 
o cost (hardware and software)
        - The dec (alphastation 255) outperformed the sun closest to it 
        in price (sun sparc 5) by a considerable margin.  It also outperforms
        our sparc 20 multi-processor for 3 times the money!
        - The operating system with two user license was included.  We needed
        unlimited users.  The solaris workgroup option is a nominal cost 
        while dec wants about $6000 for their unlimited user.  We have 
        been able to get a competitive price on the dec os unlimited user 
        in light of this fact!
o speed (throughput, response time), 
        - The dec simply outperforms the sun for number crunching power 
        and more important in this situation, response time
        - Apparently, dec has included many of the real-time extensions 
        from its real-time unix into digital unix.  this makes for excellent 
        response time which is key for WWW servers.  The solaris server 
        is much worse even though it has twice the memory and half the load
o ease of installation and upgrade, 
        - The solaris machines do install pretty easy.  The dec came 
        preloaded with du 3.2d and we had to fall back on our media 
        distribution of 3.2c because we needed to move the system disk 
        around onto another several disks. the 3.2d that came on the dec
        was rather botched. I blaim this on the fact that since the os came 
        installed, they had to install all options.
o integratability, 
        - no problem running 3.2d and solaris 2.3 side-by-side.  one of 
        our dec's is the nis master server, news server, radius server, 
        and nfs server and no one complains!
o available software (commercial, porting internal software)
        - porting software to du is a nice experience.  librarys and 
        headers are thoughtfully laid out to accomodate both bsd and sysv 
        programming interfaces. solaris provides compatbility libraries 
        but they are unwieldy and porting is difficult
        - secondly, du comes with its own compiler!
        - also liked lsm which comes with a basic set of features and 
        advfs on the dec
        - it doesn't seem however, that du has caught on for commercial 
        software as much as solaris or even some bsd variants. I am 
        referring to low scale software not larger commercial packages
        - the only problem we have with porting inhouse written software 
        was going from gcc to dec cc because our coders have been getting 
        lazy with what gcc lets you get by on and the difference between byte 
        ordering and size of pointers
I hope this helps some people make more informed decisions in the future!
- Brad block
Received on Sat May 04 1996 - 13:14:27 NZST