Fsck error

Hello

I own a SPARC Ultra 10 workstation (standalone) and when issuing the fsck command I get the following output on fs C0t0d0s7:
Phase 1 (checks blocks and sizes):

dada warning: /pci@lf;0/pci@1, 1/ide@3/dad@0,0(dad1): ATA Transport failed:reason, `incomplete'>
Uncorrectable data error:Block C18E70
dada warning: /pci@lf;0/pci@1, 1/ide@3/dad@0,0(dad1):
disk not responding to selection.

Is the file system corrupt. If so, what can I do to rectify it?

Many tanks

It sounds worse than the filesystem being corrupt, it sounds like the disk itself is on the way out. Back up what you can immediately!

Also try reseating both ends of the cable going from the motherboard to the disk. If you moved the computer recently I may have moved ever so slightly.