On Mar 12, 2008, at 9:49 AM, Large, Matthew : Barclays Wealth wrote:

Just to summarize the answer from the technote page..

'Data is encrypted during WRITE operations, when the encryption key
is passed
from the server to the drive. Data is decrypted on READ operations.'

I will not need to relabel the volumes since the label is not
encrypted, just
data written in the write process.

Consider the method used for encryption, as the document also says:

"When using encryption-capable drives with the Application method, a
new format will be used to write encrypted data to tapes. If data is
written to volumes using the new format and if the volumes are then
returned to scratch, they will contain labels that are only readable
by encryption-enabled drives. To use these scratch volumes in a drive
that is not enabled for encryption, either because the hardware is
not capable of encryption or because the encryption method is set to
OFF, you must relabel them."