Where do you find this short SFP+ cable? It looks like possibly a passive cable assembly. The shortest Ubiquiti sells is 1 meter. These look like they are 3-4” long. Taken from a Unifi rack ad pic.3yr ⋅ razefist ⋅ r/Ubiquiti
Replace drives one by one, last drive rebuilding stuck at 100% for several days?2yr ⋅ razefist ⋅ r/qnap