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

Checkpoint/Restart (CKRS)
Migration
The OS 2200 Cryptographic Library (CryptoLib) must be installed for Cipher API to run.
Previous levels of Cipher API did not require CryptoLib.
ClearPath OS 2200 Release 12.1
Java applications can access Cipher API by using the standard Java Cryptography
Architecture (JCA) classes and interfaces. Cipher API handles cryptographic requests
through a cryptographic service provider called UnisysJCE.
In addition to the API and Java Cryptographic Service Provider support, Cipher API
includes a command line utility for file encryption.
5.5. Checkpoint/Restart (CKRS)
General Considerations
• Because CKRS saves a particular environment and then restores that exact saved
environment, any changes to the hardware or software environment (such as a
change in mass storage device or installation of a new product level) between the
taking of the checkpoint and the attempted restart might prevent successful restart.
• For a successful restart, the Exec and CKRS product levels must be compatible
(specifically, they must be from the same system release level).
• A checkpoint and subsequent restart will be unpredictable if you change addresses
or data in a common bank between the checkpoint and the restart. The linked
(resolved) references in the program are no longer valid and the restarted program
would refer to incorrect addresses and data. Also, a checkpoint request is not
fulfilled and a fatal checkpoint error results if any write-enabled common banks are
based at the time a checkpoint request is made.
5.6. COMAPI
General Considerations
• The security attributes for subsystem User-id, ACRs, and files are changed. The
following attributes are required:
− The clearance level attributes for COMAPI are minimum=0 and maximum=63.
− The compartment set applies only to Security Level 2 or higher.
− The value is access to ALL compartments, even if no compartments are defined.
− Trusted privileges are SSBAFC, SSBYCOMP, SSBYPASSOWNR, and SSCCL.
• If your application is designed to use socket function calls, you must include the
library element SYS$LIB$*COMAPI$LIB.SOCKET$LIB in the link of your application.
Refer to the COMAPI User Guide for more information.
If you use a newer level of the socket library in your application and subsequently try
to run on an older level of COMAPI, it will not work. You must re-link with the socket
library that is installed for that level of COMAPI.
Note: You can use old socket libraries with newer levels of COMAPI.
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