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2. Encryption Architecture & Strategies
15
Encryption Methods
Choose how to encrypt data. You can use encryption-enabled QIPs, LTO-4 drives, or both to
encrypt data. With QIPs, the library handles encryption, and can encrypt data written to any
tape type (such as LTO-3 and SAIT). With LTO-4 drives, the drive handles encryption, and
encrypts data written to LTO-4 tapes.
Note:
If a partition uses LTO-4 drive-based encryption, the library can load
LTO-3 media into that partition. However, attempts to write to LTO-3
media fail. Note that LTO-4 drives
can
successfully read data on LTO-3
tapes.
Further, if an encryption-enabled QIP and a Fibre Channel LTO-4 drive share a partition, you
can only encrypt data using the LTO-4 drive.
To decrypt data encrypted using a QIP, use a partition with QIP-based encryption. To decrypt
data encrypted using an LTO-4 drive, use a partition with drive-based encryption.
Only one encryption key is allowed per LTO-4 tape. Once you stop using that key, you can no
longer directly encrypt data to any LTO-4 tape that stores data encrypted using the old key. To
write encrypted data using a different key, you must first recycle the tape. Recycling media is
easily managed through BlueScale Encryption Key Management.
LTO-4 Media Recycling
LTO-4 tapes can store only data encrypted using a single key. If you have an LTO-4 tape storing
data encrypted using a different key, or encrypted using a QIP, you have to recycle the tape
before you can re-use it in an encryption-enabled LTO-4 drive.For more information about
recycling media using a T950 or T120 library, refer to
Chapter 6. Recycling Encrypted LTO-4
Media in Spectra T950 and T120 Libraries on page 68
. For more information about recycling
media using a T50, refer to
Chapter 10. Recycling Encrypted Media in Spectra T50 Libraries on
page 119
.
Содержание BlueScale Encryption
Страница 1: ...BlueScale Encryption User Guide PN 90940012 Revision E...
Страница 10: ...BlueScale Encryption Overview...
Страница 26: ...Spectra T950 and T120 BlueScale Encryption...
Страница 71: ...Spectra T50 BlueScale Encryption...
Страница 123: ...EDU and BlueScale Encryption Support...