This is driving me nuts, I manage a lot of sbs boxes, this one I just inherited. Dell Poweredge SC1430 with SBS 2003 R2 SP2. The server has randomly frozen several times where video goes out, mouse, keyboard and network all unresponsive the only option is hard reboot. There are no errors in event logs, event logs are very clean, and this doesn't occur all the time. Using sbsbackup to an external usb hard drive, here are the only consistencies:
2/5/11 ntbackup starts 5:30 server hangs at 6:11
2/14/11 ntbackup starts at 6:30 server hangs at 6:57
2/23/11 ntbackup starts at 7:30 server hangs at 7:46
all ntbackups in between the above listed are successful and usually complete about 11:00 pm.
Here is what I have done to troubleshoot:
Changed out usb backup drive after the first time, but happened again.
Changed start time of the backup 1hour later each time
Disabled antivirus (it is set to avoid, exchange and backup drives anyway)
checked server hardware (memory, hard drive)
Checked scheduled tasks for conflicts no other tasks other than system tasks listed.
There are no other backup programs running, server has updates, plenty of space on both internal and external hard drives. There were scheduled nt backup routines running unsuccessfully when I took over the server but I deleted and removed the scripts and set up sbsbackup to run instead. Seems odd that this occurs almost every 9 days maybe just a coincidence? I am out of ideas, any help is appreciated!