RUN SCRIPTS LIMITED

Let's try to figure out some example. Assuming we have a standard disk size and we have ten small nodes each with one disk. How many disks are useful to have in one big system? Well, assuming that Ceph chooses to put two of the replicas across the ten small nodes then our effective capacity is 10 / 2, that is, five disks worth. That means we can put five disks in our big box and get useful work done. Any more than that and their effectiveness will wear off... How many storage nodes? Not unreasonably Ceph deems that a storage host is a likely point of failure and so arranges the distribution of replicas to keep them on distinct storage nodes. We have a default replication of three suggesting we need at least three storage nodes.

Also known as: Run Scripts

Registration numbers: 5199729 (W)

Primary location: Sherington United Kingdom