[CentOS] OT - Offline uncorrectable sectors

Nifty Cluster Mitch niftycluster at niftyegg.com
Mon Aug 25 19:03:51 UTC 2008


On Mon, Aug 25, 2008 at 07:24:24AM -0400, William L. Maltby wrote:
> 
> "Badblocks" (which really should be invoked via mke2fs or e2fsck rather
> than manually) has useful, but limited, utility in ensuring reliability.
> And it does require some small storage space in the file system. And it
> does *not* assign alternate blocks (that is, it does not take advantage
> of the hardware alternate block capability). And it is not "predictive",
> thereby being useful only for keeping an FS usable *after* data has been
> (potentially) lost on an existing file system. It's best utility is at
> FS creation and check time. It also has use if you can un-mount the FS
> (ignoring the "force" capability provided) but cannot take the system
> down to run manufacturer-specific diagnostic and repair software.

It might be interesting to add a "catch 22" story.

I once added -c  flags to /fsckoptions and "touch"ed /forcefsck.
I had to take the disk to the lab and fix it on a bench system. 



-- 
	T o m  M i t c h e l l 
	Got a great hat... now what.



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