Corrupt files on Server 2003
we have a server running 2003, coming back from xmas break yesterday and it was turned off, this was left on before I left. Anyway looks like the UPS failed(working fine now) during the break, anyway turned server on etc, and running fine, until this morning when people started reporting that certain files will not open as they are corrupt, I thought this was an isolated incident until I looked through the event log and see these errors being reported, The error is followed by the same log error message and it says "The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume Data." on each log entry.
I used the chkntfs command to check the drives and did confirm 2 of 3 the drives(C: and E: Data) were dirty?
Also an odd thing is that I can see certain and open files, but other people cannot see them, I presume related to the same problem.
I am unsure on how to proceed now?
any suggestion or help?