cant add SSD cache

[Rayqusa]

hi there,

I have a question. I have install my synology in proxmox and it is going well. my proxmox was installed on unused intel optane 15GB. so it has limited capacity

after install several OSs it left with 7GB SSD. I want to add it to ssd cache read and write. for starting I want to add 2 GB each, so it consume 4GB memory

 

it detected in my NAS, but cant build cache. I have tried read only mode with 6GB ssd, but it refuse.

 

I remember read somewhere that minimal capacity for ssd cache is 10gb. is that true?

anyone can help me to proof this theory. 

thank you

[Peter Suh]

[Peter Suh]

[Rayqusa]

so it minimum 10 GB

 

thank you for your help. at my SS 10-2 GB, so I think it is weird, it should be 2-10 GB