Topics started by Sam41

2 Topics

S
Sam41Adventurer
asked in How It works

Native replication (RF2, RF3) vs Local Replication (Async DR, NearSync)

Hi all,   Local Replication is a process in which multiple copies of data are stored within a storage container. These copies exist for fault tolerance. Snapshots are placed locally on the same cluster as the source VM. Thus, If a physical disk fails, the cluster can recover data from another copy. The cluster manages the replicated data, and the copies are not visible to the user.   So, what is the difference the Replication Factor option? Because RF is used too for fault tolerance in case of a physical disk failure (or node, ...)   Thanks

4
S
4 years ago
S
Sam41Adventurer
asked in How It works

How Nutanix works!

Hi all, I have some questions that I’m trying to answer but … ;) So if you can explain to me or point me to a part of some resources   # Questions Is it recommended or mandatory to configure containers as ReplicationFactor-3 when the cluster is RedundancyFactor-3 In case of ReplicationFactor-3, when reading, how many checks are done to validate data correctness? In a RedundancyFactor-2 only 1 failure is tolerated, the cluster will still work with (e.g) 2 Zookeeper. In RedundancyFactor-3 there is 5 Zookeeper, so why we can’t tolerate up to 3 failure? What are the limitations for which it is not possible to migrate VMs between containers without the export/import method? How the cluster will behave in case of network separation issue (e.g. 4 nodes can communicate and 4 other too)? If I a have 2 Guest VM in the same Vlan, will they communicate through the OVS br0 or the traffic will go till the external switch and come back to the cluster? With the bond0 (br0.up) interface having 2 links

2
Alona
Nutanix Employee
4 years ago

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