Master Key, which was generated at the time of SED enablement (see
7.3.3.1. Enabling Controller-Managed SED
7.4.3
Moving SEDs to a Different Controller While Key Change Is in Progress
Moving a SED to another server or adapter while a key change is in progress should only occur if there is a server
or controller failure. If the server or controller is still running, then wait until the key change is completed before the
move occurs.
The controller can detect that the moved SEDs are foreign, and it was undergoing a key change.
This is a case of a Foreign Import and an interrupted key change scenario. The general handling is to follow the
Foreign Import process; however, in this case, the user must provide both the old and new Master Keys.
The management tools support retrieving both the Key Identifier and the Reset Key Identifier from the foreign SED.
After both the old and new foreign keys are provided, the controller completes the key change that was in progress
prior to the move and then execute the additional key change to import the foreign SEDs.
7.4.4
Moving SEDs to a New Controller when the Server Is Powered Off with Controller Password
Enabled
The following use cases describe the process for moving SEDs to a new controller when the server is powered off
with the controller password enabled.
Case 1: If the moved SEDs are MCHP-owned, but do not have any logical volumes on it, the SEDs will be discovered
as foreign SEDs and will be in the Data Locked state. Once adapter password is provided, the foreign SEDs will be
in locked state. The SEDs are not visible to the host. After the user imports the foreign SEDs, they will be unlocked,
Microchip-owned. Now they are exposed to the host.
Case 2: If the moved SEDs are MCHP-owned, and have secured logical volumes on it, the volume will be in data
locked before adapter password is provided. Once adapter password is given, the secured logical volumes become
locked. After user imports all the foreign SEDs, the secured volumes will be in OK state.
7.4.5
Rebuild Does Not Start when a Replacement Drive Is Added Prior to Entering the Controller
Password
After providing the adapter password, hot remove the replacement drive and hot plug back in again, rebuild will be
started.
Managing SED
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2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS00004281C-page 45