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How many passes have they sustained thus far? They are rated to be
filled 200 times (or so.) After that they are toast. (Toast meaning
they'll probably shred inside your drive at some point.)
Honestly I don't think they'll have much value. You can get new ones for
under $20 which obviously have zero passes on them. LTO 4 has been
around a LONG time so your tapes may be nearing end of life.
You can do INZTAP and specify CLEAR(*YES) which will write the entire
tape erasing all data. It will take SOME MINUTES per tape!!
DO NOT use a bulk erase magnet as that will clear the servo track as
well and thus the tapes are useless. There is such a thing as a bulk
tape eraser that zaps them much more quickly without killing the servo
track but I don't know anyone who has one.
The best way to assure they cannot be read is to run them through one of
the commercial shredders. (Really a tree shredder but they'll destroy
tapes :-)
- Larry "DrFranken" Bolhuis
www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.
On 8/3/2018 3:28 PM, Gerald Kern wrote:
I have several dozen LTO-4 tapes used only by BRMS running on i v7.2. and
I'd like to prepare them for re-use and possible re-sale, perhaps on ebay
or craigslist etc. But I need to ensure all of the data on the tape is
totally unrecoverable.
What is the best method to clear all of the data? INZTAP? Specific BRMS
commands?
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