Did you check to see if you have bad RAM in your computer? In my experience, bad RAM is the most frequent cause of crashes in OpenSolaris 2008.05. The difference between OpenSolaris and other operating systems (like Windows Server 2003 or Linux) is that Windows Server 2003 and Linux won't notice the bad RAM and will continue to run smoothly until your website becomes popular and the server gets a lot of hits and Apache starts using up more RAM and then, right when you need your server to be up the most, it starts crashing ALL THE TIME. Very frustrating.
OpenSolaris is different because ZFS will notice that other programs aren't using the RAM and that there is idle, unused RAM space just lying around. ZFS will then start to use this un-used RAM (for caching, check-summing, etc) and will inevitably hit the bad spot in the RAM So you have two choices: (A) run Linux or Windows Server 2003 and not notice that you have bad RAM until your server gets a lot of hits and starts crashing when you need it the most. or (B) run OpenSolaris and notice that the bad RAM is causing your server to crash right from the get go, and replace the bad sticks of RAM with new ones. -- This message posted from opensolaris.org
