On Fri, May 12, 2006 7:40 am, Mike Schienle wrote: > > On Fri, May 12, 2006 7:05 am, Joel Rees wrote: >> >> On 2006.5.12, at 10:01 AM, Mike Schienle wrote: >> >>> >>> Hi all - >>> >>> I just installed an Intel Mac Mini as a replacement for a dual 1.8 GHz >>> G5 at >>> my colocation place a couple days ago. >> >> Can I ask a silly question in public, or would off-list be more >> appropriate? > > I thought that would raise an eyebrow :-) > > The G5 began having stability problems. It would stop authenticating users > (email, ftp, logins, etc. would fail, but web server would continue) after > anywhere from 2 to 24 hours. I have two internal disks, 80 GB for OS and 250 > GB for DB and web sites, and two external disks that are essentially backups > for the internals (all 7200 RPM). I ran disk checks on all of them. I cloned > internals to externals one at a time and had the exact same issues. After many > attempts to hunt down the root cause (from launchd to securityd and a few > other areas), it was time for stabs in the dark. I replaced the OS on the > external, which was an upgrade from 10.3.x to a fresh install of 10.4. That > actually made things worse, it went from failing to authenticate to complete > lockups within a few minutes, so back to the original setup thanks to being > able to shuffle things around with the spare disks. > > The next attempt was to start swapping/rotating RAM modules (I had recently > gone from 1.25 GB to 4 GB), to see if one was flaky. No change. The current > guess is a problem with the power supply. At this point I just needed to put > something stable in place and fix the problem behind the scenes. As soon as > that happens I expect to put the G5 back. > > I'm definitely happy with the Intel (dual core) Mac Mini so far. Database > access is about 15% slower for a couple long queries (20+ minutes), which I'm > assuming is because they went from a FW800 attachment to FW400, though it > might be because of the internal Mac Mini disk being a 5400 RPM laptop drive. > The mysql executable is on the internal drive, but the data lives on the > external drive.
Actually, the data was on the internal 250 GB disk on the G5, rather than the external FW800 drive. Now it's on the external 250 GB disk attached via FW400. The query uses about 30 fields from 8 joined tables to pull out 200 KB from 19 GB. Mike Schienle
