Ultra 5 disk errors

[terrywashington]

I am getting the below errors on an Ultra-5 workstation. I am assuming that this is a bad block on the disk. I have been able to correct this type of problem on SCSI workstations using the repair utility within format. This system displays an error "controller does not support repairing or disk supports automatic defect management" when using repair. Does the repair utility work on IDE disks? What are my options?

Oct 25 21:38:12 calypso Uncorrectable data Error: Block e12500
Oct 25 21:38:14 calypso unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@0,0 (dad0):
Oct 25 21:38:14 calypso disk not responding to selection
Oct 25 21:38:18 calypso unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@0,0 (dad0):
Oct 25 21:38:18 calypso Uncorrectable data Error: Block e12500
Oct 25 21:38:20 calypso unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@1,0 (dad1):
Oct 25 21:38:20 calypso ATA transport failed: reason 'reset': retrying command
Oct 25 21:38:20 calypso unix: WARNING: interrupt level 4 not serviced
Oct 25 21:38:20 calypso unix: dad0: disk okay
Oct 26 00:06:02 calypso unix: automountd not running, retrying
calypso#