I'm currently running 6.2 Enterprise as a web server. Upon boot, the system gets about halfway through loading and throws up this error:
>fsck.ext4: No such file or directory while trying to open /dev/(our device): The superblock could not be read or does not describe a correct ext2 filesystem. If it's valid or really contains an ext2 system then it's corrupt.

Then it gives the options to either Ctrl-D to continue or input Root password to go to a shell. I booted from a rescue disk and the dev in question was empty. At the time of the first crash, no one was working on the server which led me to believe that it was a hardware failure, but after doing some thorough testing the drives all seem fine. Now I have no idea what could have been the cause of the failure. I'm hesitant to just re-install the OS without finding out the cause because it could happen again.

Thanks for the help!

I found these error messages from the Kernel on the day of the crash.

Dec 29 12:18:49 init: Failed to spawn splash-manager main process: unable to open console: Input/output error
Dec 29 12:18:49 init: tty (/dev/tty1) main process (2698) killed by TERM signal
Dec 29 12:18:49 init: tty (/dev/tty2) main process (2700) killed by TERM signal
Dec 29 12:18:49 init: tty (/dev/tty3) main process (2702) killed by TERM signal
Dec 29 12:18:49 init: tty (/dev/tty4) main process (2704) killed by TERM signal
Dec 29 12:18:49 init: tty (/dev/tty5) main process (2706) killed by TERM signal
Dec 29 12:18:49 init: tty (/dev/tty6) main process (2708) killed by TERM signal
Dec 29 12:18:49 rhnsd[2664]: Exiting
Dec 29 12:18:51 qpidd[2572]: 2012-12-29 12:18:51 notice Shut down
Dec 29 12:18:51 abrtd: Unrecognized variable 'DeleteUploaded' in '/etc/abrt/abrt.conf'
Dec 29 12:18:51 abrtd: Got signal 15, exiting
Dec 29 12:18:56 acpid: exiting
Dec 29 12:18:56 init: Disconnected from system bus
Dec 29 12:18:56 rpcbind: rpcbind terminating on signal. Restart with "rpcbind -w"
Dec 29 12:18:56 auditd[2075]: The audit daemon is exiting.
Dec 29 12:18:56 kernel: type=1305 audit(1356812336.838:433705): audit_pid=0 old=2075 auid=4294967295 ses=4294967295 res=1
Dec 29 12:18:56 kernel: type=1305 audit(1356812336.951:433706): audit_enabled=0 old=1 auid=4294967295 ses=4294967295 res=1
Dec 29 12:18:56 kernel: Kernel logging (proc) stopped.
Dec 29 12:18:56 rsyslogd: [origin software="rsyslogd" swVersion="4.6.2" x-pid="2100" x-info="http://www.rsyslog.com"] exiting on signal 15.