Disk troubles - which disk is that ?

[David Timms]

I'm getting so app pausing, and found disk errors in the messages log:
----
[ 5205.549112] ata3.00: exception Emask 0x50 SAct 0x1 SErr 0x280901 
action 0x6 frozen
[ 5205.549115] ata3.00: irq_stat 0x08000000, interface fatal error
[ 5205.549118] ata3: SError: { RecovData UnrecovData HostInt 10B8B BadCRC }
[ 5205.549120] ata3.00: failed command: READ FPDMA QUEUED
[ 5205.549124] ata3.00: cmd 60/08:00:ad:d2:cd/00:00:43:00:00/40 tag 0 
ncq 4096 in
[ 5205.549125]          res 40/00:04:ad:d2:cd/00:00:43:00:00/40 Emask 
0x50 (ATA bus error)
[ 5205.549127] ata3.00: status: { DRDY }
[ 5205.549130] ata3: hard resetting link
[ 5206.007042] ata3: softreset failed (device not ready)
----
.. repeats, slight difference in SErr

How do I translate ata3 or ata3.00 into the logical disk eg /dev/sdN ?

Further on:
----
[ 5282.931436] ata3.00: status: { DRDY }
[ 5282.931437] ata3.00: failed command: READ FPDMA QUEUED
[ 5282.931440] ata3.00: cmd 60/08:d8:ac:8d:c7/00:00:33:00:00/40 tag 27 
ncq 4096 in
[ 5282.931441]          res 40/00:f4:c4:8d:c7/00:00:33:00:00/40 Emask 
0x50 (ATA bus error)

[ 5282.931443] ata3.00: status: { DRDY }
[ 5282.931444] ata3.00: failed command: READ FPDMA QUEUED
[ 5282.931447] ata3.00: cmd 60/08:e0:b4:8d:c7/00:00:33:00:00/40 tag 28 
ncq 4096 in
[ 5282.931448]          res 40/00:f4:c4:8d:c7/00:00:33:00:00/40 Emask 
0x50 (ATA bus error)
----

Also, I seen sd 2:0:0:0: as the disk label, how would you convert that 
to /dev/sdN disk ?

Cheers, Dave.