Reasons why people are switching from Solaris to Linux

I met up this week with one of my friends that I haven’t seen in a while. We chatted about life, work and eventually started chatting about Linux and Solaris (we are both SysAdmins). My friend mentioned that his company had decided to quit buying Sun hardware in favor of Dell servers running Redhat Linux Advanced Server. I was shocked to hear this since my friend had actively pushed Solaris in the past, and was one of the folks I regularly got together with to discuss new technologies merged into Nevada. His company has numerous concerns surrounding Solaris 10 manageability and Sun’s lack of ACTIVE support for commonly used opensource packages. We chatted about this for hours over cocktails, and both came to the conclusion that Sun needs to do something to address the following problems with Solaris:

​1. Solaris doesn’t ship with a working and supported LAMP stack (I should probably say SAMP stack). My friend’s company is frustrated with having to manually download and build Apache, MySQL, and PHP on their Solaris boxes, and chose to move to Redhat Advanced server to get a working and SUPPORTED LAMP solution out of the box. I am not sure why Sun can’t ship a working and supported SAMP stack with Solaris. This seems like a no brainer to me.

​2. Several of the developers at my friends company have transitioned to Fedora Core on their desktops, since the desktop looks pleasant, wireless works out of the box for most chipsets, eclipse is an installation option, and there is a full suite of applications available after the installation. The Fedora Core desktop is quite a bit more usable that JDS (if you don’t believe me, install Fedora Core 5 side-by-side with JDS), so developers have jumped all over it (at least those that don’t use Windows). Sun really needs to do something to improve desktop usability, and they should use the GNOME release from versus their own variant. They also need to do something to address package management, either by adopting blastwave or developing a decent remotely-accessible package repository.

​3. Redhat Linux ships and provides regular updates for numerous opensource software (e.g., postgres, MySQL, Apache, Samba, Bind, Sendmail, openssh, openssl, etc), where Sun keeps trying to sell customers the Sun Java One stack, “modifies” an opensource package and diverges the product from what is available everywhere else, and fails to provide timely bug fixes and security patches for the opensource packages that are shipped (Apache, MySQL and Samba are perfect examples) with Solaris. Sun really needs to get some folks focused on supporting the opensource solutions people use, versus shipping opensource software and letting the bits rot.

​4. Several key ISVs are pushing Linux and Windows over Solaris, and have switched from Solaris to Linux as their tier I development platform. This typically means that developers will squash more platform-specific bugs in their product prior to shipping it, since they are using that platform daily. Sun needs to do more to get developers writing code on Solaris, since this helps Sun customers in the end.

​5. Managing applications and patches on Solaris systems is a disaster, and redhat’s up2date utility is not only efficient, but has numerous options to control the patch notification and update process. This can also be used along with Redhat’s satellite server to provide Enterprise wide patch and application management. While Sun kicked off an effort to address the patch and installation process, I wonder if it will be too little too late.

​6. Staying on the cutting edge with Nevada is difficult, since there is currently no way to easily and automatically upgrade from one release of Nevada to another. On Fedora Core servers, you can run ‘yum upgrade’ to get the latest bits. Having to download archives and BFU is tedious, and most admins don’t want to spend their few spare cycles BFU’ing to new releases.

​7. Zones are unusable at my friend’s site, since there is currently no way to filter traffic between zones, apply QOS measures to memory, I/O and network resources, and patching a box with zones can take days in some cases (I have experienced this first hand. If you want to see, install Solaris 10, create 25 non-sparse zones, and run smpatch update). Addressing these items would allow SysAdmins to actually patch their systems, and would allow folks to sleep at night knowing that the QOS measures will protect rogue applications from taking down their servers.

​8. The Solaris opensource movement was great, but in our opinions it is very much closed to the outside world. How many people outside of Sun have actually done ARC reviews, code reviews, or applied a putback to the kernel source tree (there may be cases, but I can’t find them on This is definitely not something that can happen overnight, but people who have to wait in a queue for a sponsor, or worse yet are ignored (I filed a bug 3-months ago and asked to work on it, and have yet to hear back from Sun) when they try to fix something, will cause people to join communities where their voice actually matters.

That said, Solaris 10 is an awesome Operating System, and comes with some incredible technologies (e.g., ZFS, DTrace, FMA, etc). I truly do hope that Sun takes some steps to address these issues, since it will hopefully lead to further adoption of Solaris.

This article was posted by Matty on 2006-04-30 11:42:00 -0400 EDT