Recently we installed EMC Unity650F flash storage, and it would provision LUNs for our Solaris server configured with Solaris Cluster 4.3. In this cluster, there are 8 nodes (8 virtual machines which reside in 2 physical machines).
We created clustered UFS filesystem from the LUNs provisioned by the EMC flash storage, but we noticed the filesystem's performance (IOPS and I/O throughput, etc.) is very bad.
I noticed this document "ORACLE SOLARIS CLUSTER INTEROPERABILITY MATRIX", which is regarding technical facts how EMC storage interacts with Solaris Cluster 4.3:
First off, I noticed that Unity650F is not in the list. I think there is a possibility that since it's a new model, it might not be immediately reflected in the document yet. I will double check with EMC engineer.
But what really confused me is this column "Maximum Number Of Nodes", which is 6 in the document. Here if this value means the total number of nodes in a Solaris Cluster (v4.3), which the EMC storage could inter-operate with, this number sounds too small.
I am curious what's the exact meaning of "Maximum Number Of Nodes" in the document ?
I really appreciate your prompt reply !
How you test perfomance and on which nodes ?
On Clustered UFS files systems only one node have direct access to LUN, all other nodes use Cluster private network for transfer trafic on active node.
So perfomance will bery depend from perfomance of private net. What use as private net ?