1) If data availability and redundancy is most important, you would go > with multiple 2U boxes to minimize cluster impacts in case of any >> downtime? >> > > My general feeling here is that it depends on the size of the cluster. For > small clusters, 2U or even 1U boxes may be ideal. For very large clusters, > it is probably fine to use a denser chassis. It's all about the ratio of > how many nodes are left to absorb the loss when a single node fails. I > don't have any hard numbers, but my instinct is that in production I > wouldn't want to lose more than about 10% of my cluster if a node dies. > > So for a 180 TB cluster you would go with a 6 - 8 drives bare-bone? What about 500 TB?
> >> 2) Barring service and SLA, is it really worth taking HP over >> SuperMicro, or it's simply overpaying for a brand? >> > > I've had great experiences with both Supermicro hardware and HP hardware. > Products from both companies can work great for Ceph, but they are > different companies and have different benefits and downsides. Service, > support, and price are all things that may make one or the other a better > fit depending on your needs. > > I see, thanks.
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