To be fair - both synologies are running big spinny NAS drives - I could reduce my capacity and my power usage by going with SSDs, but shockingly, I can't seem to figure out what to cull in the 35TB combined storage.
I am debating moving my Vault cluster from a Clusterhat to pods on my fresh kubes deployment - and if I virtualize Pihole, that would also reduce some power consumption. Admittedly, I'm going overboard on my "homelab" - it's more of a full blown SMB at this point with Palo firewall and brocade 48p switch. I do infosec for a living though, and there's reason to most of my madness.
Ceph is... fine. I feel like I don't know it enough to properly maintain it. I only went with 10gbe because I was basically told on a homelab reddit that Ceph will fail in unpredictable ways unless you give it crazy speeds for it's storage and network. And yet, it has perpetually complained about too many placement groups.
Aside from that and the occasional falling over of monitors it's been relatively quiet? I'm tempted to use use the Synology for all the storage and let the 10GbE network be carved up into VM traffic instead. Right now I'm using bonded USB 1GbE copper and it's kind of sketchy.