[smartmontools-support] Short offline test 'Completed: read failure'

[Micah A. <mi...@ri...>]

I've got a disk that doesn't seem to complete the short tests, it
produces this:

SMART Self-test log structure revision number 1
Num  Test_Description  Status                 Remaining LifeTimeb(hours)  LBA_of_first_error
# 1  Short offline Completed: read failure       20%      7469            8598696
# 2  Short offline Completed: read failure       20%      6826            8598710

I've got three exact models of these disks on this system, and the other
two complete without error. Does this indicate a bad disk? Or just some
bad blocks on a disk? Can I map out those blocks somehow?

What would be the right next step here? 

thanks!
micah