Buffalo TeraStation Essentials - Drive Replacement for a Redundant RAID Array (TeraStation Is Off)

Drives without red status LEDs lit are still on. Do not unplug or remove them.
4 Pull out the drive cartridge and remove it from the TeraStation.
5 Insert the new drive into the empty slot with the lock mechanism remaining open.
Push here to insert.
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Chapter 11 Drive Replacement and Troubleshooting