Chapter 13. Encryption 791
To declare an MDisk as self-encrypting, select Externally encrypted when adding external
storage in the Assign Storage view, as shown in Figure 13-69.
Figure 13-69 Externally encrypted MDisk
IBM Spectrum Virtualize products can detect that an MDisk is self-encrypting by using the
SCSI Inquiry page C2. MDisks provided by other IBM Spectrum Virtualize products will report
this page correctly. For these MDisks, the Externally encrypted box shown in Figure 13-69
will not be selected. However, when added, they are still considered as self-encrypting.
To check whether an MDisk has been detected or declared as self-encrypting, click Pools →
MDisk by Pools and customize the view to show the encryption state by selecting the menu
bar, right-clicking it, and selecting the Encryption Key icon, as shown in Figure 13-70.
Figure 13-70 MDisk self-encryption state
Note: You can override external encryption setting of an MDisk detected as self-encrypting
and configure it as unencrypted using the CLI command chmdisk -encrypt no. However,
you should only do so if you plan to decrypt the data on the backend or if the backend uses
inadequate data encryption.
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