3 ms·

HA. In theory, if you have several boxes, workload can move around if a box or service go down.

• justsomehnguy 4y ago
  You need a shared storage for that. In theory you can do the same with Docker Swarm too, except you need at least 5 nodes to sleep soundly.
  • imglorp 4y ago
    Yeah shared storage is still going to be the hard part of home lab HA. Either you make a NAS with RAID or you use something redundant like Juicefs or Ceph split among your k8s nodes. Any better ideas?
    • justsomehnguy 4y ago
      > Any better ideas Stop making a 25/7, 99.99% SLA homelab. Nobody needs HA in a homelab anyway. FO - sure, why not, especially if you have a spare hardware and spare money for the electricity. Overall, a NAS/DAS/SAN with a RAID5/6/10 is more than enough to serve a multiple servers with the loads. You need a proper backup sooner than a HA storage. RAID10 on 4 HDDs was enough in 2012 for almost everything. RAID1 from 2 SSDs, even TLC/QLC/xLC - would be enough in 2022/2023 for almost everything, while not quite costly. Pair it with a RAID1 from a 2 4TB+ HDDs and you covered 99% of needs. Forget Ceph and any other vSAN-like/distributed FS - they are for work, not for hosting your 3 Docker containers.