READ_DMA48 error interpretation

[Richard Lynch]

I know the messages below mean the hard drive or IDE cards are having
problems.

But is this like RED ALERT or more like YELLOW or what?

And what do I do about it?

umount and fsck everything a lot?

swap cards/drives around until it stops?

Ignore it and pray?

All the content is already copied to a second box, plus on CD, and
none of it is crucial data, so if I lose a LITTLE data by ignoring
this, I'm okay.

If the whole thing wipes out, that would be bad.

These drives are often spun down, as they are not accessed very often
-- it's the roll-over fall-back audio server in a cobbled-together
system I won't describe, as you'll just laugh at me. :-)  Is it
possible that these are just from the drives spinning up too slowly?

+ad1: TIMEOUT - READ_DMA48 retrying (1 retry left) LBA=404955007
+ad1: FAILURE - READ_DMA48 status=51<READY,DSC,ERROR>
error=10<NID_NOT_FOUND>
LBA=404955007
+g_vfs_done():ad1s1[READ(offset=207336931328, length=16384)]error = 5
+ad1: TIMEOUT - READ_DMA retrying (1 retry left) LBA=106507715
+ad1: TIMEOUT - READ_DMA48 retrying (1 retry left) LBA=324791875
+ad1: FAILURE - READ_DMA48 status=51<READY,DSC,ERROR>
error=10<NID_NOT_FOUND>
LBA=324791875
+g_vfs_done():ad1s1[READ(offset=166293407744, length=2048)]error = 5
+ad1: TIMEOUT - READ_DMA48 retrying (1 retry left) LBA=325168415
+ad1: FAILURE - READ_DMA48 status=51<READY,DSC,ERROR>
error=10<NID_NOT_FOUND>
LBA=325168415
+g_vfs_done():ad1s1[READ(offset=166486196224, length=16384)]error = 5
+ad1: TIMEOUT - READ_DMA48 retrying (1 retry left) LBA=400062279
+ad1: FAILURE - READ_DMA48 status=51<READY,DSC,ERROR>
error=10<NID_NOT_FOUND>
LBA=400062279
+g_vfs_done():ad1s1[READ(offset=204831854592, length=4096)]error = 5
+ad1: TIMEOUT - READ_DMA48 retrying (1 retry left) LBA=387991903
+ad1: FAILURE - READ_DMA48 status=51<READY,DSC,ERROR>
error=10<NID_NOT_FOUND>
LBA=387991903
+g_vfs_done():ad1s1[READ(offset=198651822080, length=16384)]error = 5
+ad3: TIMEOUT - READ_DMA retrying (1 retry left) LBA=287

-- 
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some starving artist.
http://cdbaby.com/browse/from/lynch
Yeah, I get a buck. So?