after some 11-12 hours i got this:

empeg:/empeg/bin# cat /dev/hd? > /dev/null
hdb: read_intr: status=0x59
hdb: read_intr: error=0x40
show_message("36e0.-1 hdb: err: read_intr")
end_request: I/O error, dev 03:40 (hdb), sector 115464112
cat: /dev/hdc: Input/output error
empeg:/empeg/bin#
_________________________
the "monkey" who learned to check a harddrive