ClearPath OS 2200 Series Release 13.2 Software Planning and ...

Tape and DVD
An encrypting tape device can also read unencrypted cartridges, but you cannot write to
an unencrypted cartridge unless you are at the beginning of tape (load point) and the
cartridge would become encrypted. A tape cartridge currently cannot contain a mixture
of encrypted data and unencrypted data; either the entire cartridge is encrypted or the
entire cartridge is not encrypted.
Tape Drives Supporting Encryption
Encryption is fully supported on the following:
• Sun/StorageTek T10000A
• Sun/StorageTek T9840D
• Sun/StorageTek LTO4-HP
Restrictions
Since the tape drive encryption process is totally transparent to the Operating System it
is recommended that all drives be configured for encryption or all drives configured for
no encryption. This release of encryption does not include any encryption subfield(s) on
ECL or through program interfaces (ERs and CALLs). Future ClearPath releases will
include enhancements to standard ECL statements to include encryption specifications.
Encryption is not supported on the DSI LTO4-HP drive at this time.
Operator Messages
There are several I/O error messages that may be displayed on the operator
console. These error messages can be found in the System Console Messages
Reference Manual. The three new messages will be displayed for these events:
• If an encrypted tape cartridge is inserted into a drive that does not have the
encryption feature, the Operating System will prevent inadvertent overwrite of the
encrypted cartridge and the operator will be notified.
• If an unencrypted cartridge is mounted on a drive that has encryption enabled, you
will not be able to append to that cartridge and the operator will be notified.
• If an encrypted cartridge is mounted on an encryption enabled drive but the KMS
system does not have the correct decryption key, you will not be able to read or
write the tape and the operator will be notified.
Related Documentation – Sun/StorageTek Crypto Key Management
System 2.0
• KMS 2.0 Systems Assurance Guide
• KMS 2.0 Installation and Service Manual
• KMS 2.0 Administration Guide
• KMS 2.0 Engineer White Papers
These documents can be accessed from the Sun Microsystems Web site.
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