On Sun, 2007-02-18 at 08:52 -0500, Chuck Mattern wrote: > I've got an odd situation that I need some advise on. I have two > computers that I am planning to use as a cluster. I initially started > with some left over Compaq Presairos with 667MHz CPUs. I loaded CentOS > 4.3 and later updated to 4.4. Things ran normally, albeit slowly. I > had an opportunity to upgrade to a pair of IBM Netvistas with 2.26 GHz > CPUs, I did this by transferring the 160GB Western Digital IDE disks and > NICs but did not re-install the OS, just migrated the disks. Since then > they have had the following symptoms: > > -Systems frequently boot faster than the disks can be spun up and have > to be soft booted to recognize and boot from the disks. I doubt this is related, but I had a similar situation with a couple brand new disks that I installed. Thought I would mention, JIC. Us older folks used to store unused jumpers on pins on the HDS. A ground-to- ground connection never did any harm. I used this same scheme on the new disks. The bootable master had no problems. The secondary on IDE-2 did exactly what you described. One day I got sick of it, popped it out, noted that the pins were "undocumented" and removed the jumper. Problem solved. *sigh* Back to Scotch taping spare caps to the HD case and replacing the deteriorated tape every once-in-a-while. Anyway, could you have a similar situation that is causing some long- term effect that I did not see (either it wasn't there or my load didn't cause it to become noticeable or I am unobservant). <snip> HTH -- Bill