[CentOS] System hanged - no info in logs.

Sat Apr 14 19:13:26 UTC 2012
Lamar Owen <lowen at pari.edu>

On Thursday, April 12, 2012 10:13:00 AM m.roth at 5-cent.us wrote:
> Time to use smartctl, if not fsck -c.

Another useful fsck variation is fsck -cc which will do a nondestructive 'read-write' to trigger on-drive bad sector remapping.  Takes a long time to do, but does the work.

It's documented in the man page under the '-c' option's paragraph, last sentence.