Re: LTO4 drive with possible issues

[Bill <brobins3d@xxxxxxxxx>]

On 4/9/2014 12:36 PM, Jeff Crosby wrote:
> Another thing I forgot to ask on LTO tapes:
>
> 4) Doing a little reading on LTO tapes and I found on Wikipedia (which is
> never wrong <g>) "LTO uses an automatic verify-after-write technology to
> immediately check the data as it is being written, but some backup systems
> explicitly perform a completely separate tape reading operation to verify
> the tape was written correctly. This separate verify operation doubles the
> number of end-to-end passes for each scheduled backup, and reduces the tape
> life by half."  We do verifies via the backup software.  Should I forget
> that?

Yes, from what I learned a number of years ago, if the tape drive 
utilizes a helical scan head then the verify will likely be an automatic 
operation.

Bill