phenomenon:
Alarm information display panel
PDR1101 fault detected on drive 0. Check drive...The investigation is the cause of data disk failure, while r720 of idrac seems that we do not have, I can not see through to the underlying disk idrac information, also see the specific raid5 disk information in the system.
Note: I suggest here each disk light is not flashing alarm
solve
To find a more appropriate opportunity to resolve the problem server downtime
Restart raid entering CTRL + R configuration interface, disk status were normal
The re-plug the disk according to the original slot
The results of the front panel alarm message has been displayed, and no relief
Eventually the server all power off, then on again, the boot, the alarm message disappears, the panel back to normal
May be due to the server too old because of it, a message we can not rely on a hundred percent, prompt to confirm the accuracy of the information, making the next step