Dear cephers, I am new to the storage domain. Trying to get my head around the enterprise - production-ready setup.
The following article helps a lot here: (Yahoo ceph implementation) https://yahooeng.tumblr.com/tagged/object-storage But a couple of questions: What HDD would they have used here? NVMe / SATA /SAS etc (with just 52 storage node they got 3.2 PB of capacity !! ) I try to calculate a similar setup with HGST Ultrastar He12 (12TB and it's more recent ) and would need 86 HDDs that adds up to 1 PB only!! How is the HDD drive attached is it DAS or a SAN (using Fibre Channel Switches, Host Bus Adapters etc)? Do we need a proprietary hashing algorithm to implement multi-cluster based setup of ceph to contain CPU/Memory usage within the cluster when rebuilding happens during device failure? If proprietary hashing algorithm is required to setup multi-cluster ceph using load balancer - then what could be the alternative setup we can deploy to address the same issue? The aim is to design a similar architecture but with upgraded products and higher performance. - Any suggestions or thoughts are welcome Thanks in advance
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