Erasing volumes

[Iago77]

Hello,

I was trying making clones and I had to 'clear' backup volumes. First I click with right button on STKL700 > Operations, next I put in slot ranges. Then I select the wished poo. Finally I click OK and I must confirm each labelling.

I have just done a clone volume in a manually way. This time I've noted the size is 236 GB, the label is 129, a new volume. Last week I tried doing the same with another volume which was erased in the way I described before and the capacity was of 130 GB. I ask myself if the capacity was relationated 'cause 'the labelling proccess'.

Would you tell me another way to erase the information from a Ultrium 100/200GB volume?

Many thanks in advance

 

[605]

The capaciaty actually depends on the device type you have
selected and it becomes effective by the labeling.

However, for tape devices, this is nothing else but an
estimated value - NW will always write until it reaches
the physical end-of-tape. On disk devices, you may also set
the 'volume default capacity' - if you hit this mark, the
'media' is considered to be full and NW will look for
another piece of media from the same pool.

Todays tape drive's firmware prevent you from going beyond
the logical EOT but of course this is possible, for instance
for data recovery companies.

If you really want to do a 'security erase' i think you
need to initiate this by a utility that allows you to set up
your own SCSI command. Unfortunately, such tools are expensive.