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a. To make adding the Crypto Express features nondisruptive, the logical partition must be predefined with the appropriate PCI Express cryptographic adapter number. This number must be selected from its candidate list in the partition image profile. 

b. This feature is not required for Linux if only RSA clear key operations are used. DES or triple DES encryption requires CPACF to be enabled. 

c. This feature is physically present, but is not used when configured as an accelerator (clear key only). 

