This is likely (almost certainly) a hardware issue. However, I would like any guidance available on diagnosing the exact cause and remedy. We have a warm standby server then went off line over the weekend. The problem manifests itself as a kernel panic during the centos boot process. The issue appears to be with auto-mounting a number of pci devices. Unfortunately the error messages scroll off the monitor that I attached to it. This is some of the residue text that I though might have some use in diagnosing the problem. Kernel panic not syncing: Fatal exception Comm pciehpd Tainted: G DW -- ------- . . . drm_k,s_helper panic occurred switching back to text mode. At which point the system is non-responsive. Any ideas as to what is going on? Any other information I should be looking for? -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3