Hello!
Suppose there's an active/passive two-node HV cluster where all VMs are active on the first node:
Once there's a storage connectivity problem all IO would be redirected using node1/node2's Cluster/CSV adapters:
In order not to suffer any performance degradation inside VMs the speed of Cluster/CSV nics should be at least = or > then that of the iSCSI nics (>=10Gbps). To fulfill this requirement I must invest at least in an additional 10Gb switch + a couple of 10Gb nics.
Doesn't it make more sense in this situation to initiate a cluster failover to the node wich does not have any issues with the storage?
- in this case the speed of 1Gb for the Cluster/CSV nics may be sufficient and there will no be need for the second 10Gb switch.
Q: Is it possible to configure AUTOMATIC failover due to storage connectivity problems (in spite of working heartbeats)?
Thank you in advance,
Michael