593 Views 6 Replies Latest reply: Jan 12, 2010 3:12 AM by thomas_r.
Several things come to mind...
Boot from your install disc and run Disk Utility. If it finds errors on the startup disk, Disk Utility can repair them.
Insert your install disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
*(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)*
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility window open, look at the bottom of the window. Where you see Capacity and Available. *Make sure there is always 10% to 15% free disk space*
You can also boot from your install disc and run the Apple Hardware Test, instructions Here.
Go here for hlep to Maintain Mac OS X
The most important thing you can do is back up your important data in case you should have to reformat the drive.
The X-Lab document Carolyn referred you to is an excellent read, overall, but there are a couple things to comment on. First, the Unix maintenance scripts run overnight, and although they'll never run if you shut your machine down overnight every night, this is not true if your machine sleeps overnight. In that case, the scripts that were supposed to run will run as soon as your machine wakes up.
Secondly, I would disregard their recommendations to keep on top of virus definitions and scans... don't bother with anti-virus software at all. Most Mac AV software is known to cause more problems than it solves (especially since it can't actually solve any problem at this point in time).
You said "since the switch to 10.6..." How exactly did you make the switch? I've never been a fan of the 'upgrade' instead preferring a 'clean install.' If you didn't (and can) I'd suggesting a big backup, a wipe of your system media, and a nice clean install of Snow Leopard. Follow it up with a Combo Update.
That said, someone already made the suggestion of running Disk Utility tests. You could also look to a third party application like TechToolPro or Disk Warrior (which can report on different Mac 'health' issues.)