Kernel error!!!

[atul]

Hello All,
When today I checked the server logs with logwatch I found under kernel
section a very long messages about the kernel .
I am usuall checking the logs daily,but I didn;t see the kernel sction so
long before.
In that I found warning about kernel error!!

WARNING: Kernel Errors Present
hda: drive_cmd: error=0x04 { DriveStat...: 1Time(s)
hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }...: 1Time(s)

What is this error?
Dose this indicate error on hda?
Should I replace hda?OR it's different from all these?
Please help thank you...

[chirpy]

Apparently you can get those messages if your disks are S.M.A.R.T drives, but disabled in the BIOS. If that's likely and you only get the messages occassionally, you can probably ignore them.