[CentOS] hard drive errors

Hello 
 
 I seem to be getting some messages via email and in var/log/messages as
well, i think its a hard drive gone bad but was wondering if anyone has
seen something similar to this or would have some ideas if its fixable
or not, here are the messages 

This email was generated by the smartd daemon running on:

   host name: localhost.localdomain
  DNS domain: localdomain
  NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/hda, 993 Currently unreadable (pending) sectors

For details see host's SYSLOG (default: /var/log/messages).


Nov 23 18:20:22 localhost kernel: hda: dma_intr: status=0x51
{ DriveReady SeekComplete Error }
Nov 23 18:20:22 localhost kernel: hda: dma_intr: error=0x84
{ DriveStatusError BadCRC }
Nov 23 18:20:22 localhost kernel: ide: failed opcode was: unknown
Nov 23 18:20:22 localhost kernel: hda: dma_intr: status=0x51
{ DriveReady SeekComplete Error }
Nov 23 18:20:22 localhost kernel: hda: dma_intr: error=0x84
{ DriveStatusError BadCRC }
Nov 23 18:20:22 localhost kernel: ide: failed opcode was: unknown
Nov 23 18:20:22 localhost kernel: hda: dma_intr: status=0x51
{ DriveReady SeekComplete Error }
Nov 23 18:20:22 localhost kernel: hda: dma_intr: error=0x84
{ DriveStatusError BadCRC }
Nov 23 18:20:22 localhost kernel: ide: failed opcode was: unknown

 thanks for any ideas.

 LostSon