/usr/adm/unix.log errors, what's these?

[Lenny Tropiano]

What are these errors, and what should I do?

/usr/adm/unix.log:

baddma:FF3F Thu Mar 10 21:16:53 1988

baddma:FF3F Thu Mar 10 21:16:54 1988

HDERR ST:51 EF:40 CL:FFC0 CH:FF03 SN:FF0F SC:FF01 SDH:FF24 DMACNT:FFFF DCRREG:94 MCRREG:9900 Sat Mar 12 06:07:43 1988

HDERR ST:51 EF:40 CL:FFC0 CH:FF03 SN:FF0F SC:FF01 SDH:FF24 DMACNT:FFFF DCRREG:94 MCRREG:9B00 Sat Mar 12 06:07:46 1988

HDERR ST:51 EF:40 CL:FFC0 CH:FF03 SN:FF0F SC:FF01 SDH:FF24 DMACNT:FFFF DCRREG:94 MCRREG:9500 Sat Mar 12 14:39:08 1988

HDERR ST:51 EF:40 CL:FFC0 CH:FF03 SN:FF0F SC:FF01 SDH:FF24 DMACNT:FFFF DCRREG:94 MCRREG:9700 Sat Mar 12 14:39:11 1988

drv:0 part:2 blk:56415 rpts:1 Sat Mar 12 14:39:28 1988

HDERR ST:51 EF:40 CL:FFC0 CH:FF03 SN:FF0F SC:FF01 SDH:FF24 DMACNT:FFFF DCRREG:94 MCRREG:9700 Sat Mar 12 14:44:07 1988

HDERR ST:51 EF:40 CL:FFC0 CH:FF03 SN:FF0F SC:FF01 SDH:FF24 DMACNT:FFFF DCRREG:94 MCRREG:9500 Sat Mar 12 14:44:11 1988

drv:0 part:2 blk:56415 rpts:2 Sat Mar 12 14:44:11 1988

Can I do something about that bad block?  Or isn't it bad?

						-Lenny
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