Areca ARC-8050T3U 6-Bay Thunder3 Desktop RAID Storage Array - Manual (Page 83)

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WEB BROWSER-BASED CONFIGURATION
You can enter SED KEY from password to generate and upload
the key for device unlocked and available to the Host.
1. SED Key is generated automatically by internal random num-
ber for a SED RAID set use without needing a password in-
put.
2. SED Key is generated by user supplied password for a SED
RAID set use.
3. Enter SED key is only allowed when no key is set in controller.
So that next time power up again, it will need to input the
key from the “ Enter SED Key By User Password” again.
4.7.4.2 SED Key Management-Modification
If you have evidence that the SED key is known to unauthor-
ized users, you can change the SED key again. The ‘Disable SED
Key” function is used to clear SED key on controller and RAID
set members.