Re: /netbsd: wd0a: error reading fsbn?

[christos%astron.com@localhost (Christos Zoulas)]

In article <20160107165638.GA22040@dstar>,
scole_mail  <scole_mail%gmx.com@localhost> wrote:
>While copying some files between disks I got these errors:
>
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0: soft error (corrected)
>
>and I retried to copy same files
>
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42), retrying
>/netbsd: wd0: (uncorrectable data error)
>/netbsd: wd0a: error reading fsbn 3522624 of 3522624-3522751 (wd0 bn
>3522687; cn 3494 tn 11 sn 42)
>/netbsd: wd0: (uncorrectable data error)
>
>What does it mean and what corrective action should I take if
>any?  Is the disk going bad or file(s) corrupted or what?  I 
>was copying some large .tgz as well as normal directories of files.

Looks like that block (3522624) has gone bad... Sometimes writing to that
block will cause a spare to be used, but it looks like the underlying
data for that block is gone.

What does "atactl wd0 smart status" say?

christos