On Sun, May 12, 2013 at 05:01:39PM -0400, John Stoffel wrote:
> Edward> Focus on reliability.   ;-)
> 
> No, you want to focus on restorability of your data in face of
> disaster.  It does no good at all to have a reliable backup system if
> you can't get the data out.  

I don't recall seeing  upthread mention of the purported BER of
LTO tapes: 1 error in 10^18 bits. I wish my experience confirmed
this. Recent attempts to restore files (HP tape library, LTO-4,
Backup Exec) resulted in a large number of tapes declared un-
catalogable. I never recovered the data. I do not believe this
reflects the underlying reliability of all tape. I'm a tape
believer. But not in the tape systems in my shop. Possible
contributing factors: lossy optical fiber links, equipment
maintenance issues, unlimited tape lifetimes. YMMV.

-- 
Charles Polisher

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