Solution: 

The following chart is a general guideline for how many trusted drive users can be added to a Self-Encrypting Drive (SED). The actual number of users you can add will vary depending on several factors such as the length of the user names, custom pre-boot message used and the overall amount of storage space on a specific drive model’s control board.

The chart is broken down based on the standard that the drive conforms to (TCG OPAL, TCG OPAL2 or the older Seagate DriveTrust standard). There is also 2 separate columns for each drive type (With or without Extended User Support enabled).

Extended user support is disabled by default but can be enabled using an ERAS server setting (“Use extended user account mode”). Note that this setting cannot be changed after the drive is initialized. If you wish to enable or disable Extended User mode on an already managed machine you will have to set the server setting as desired then uninitialize and reinitialize the drive. For more details on this setting please refer to the ERAS admin manual.

 

Drive Type

Max Users w/o Extended User Support Enabled

Max Extended Users

OPAL 2

8

256

OPAL

16

62

Seagate DriveTrust

4

20