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For some reason, only one of the physical drives is detected and attached to the pass 4 driver. On the second node there are no Journal disks. What can I see more, is that on the first node in the Cluster Manager I can see an Encolsure parameter set on all disks installed on node 1. On the second node the Enclosure parameter is blank for all drives installed on node 2. I wonder if it is not the root cause. Do you mind sharing what counters you were using to see if the journal drives were being used?
Also, what tests were you running to get your IOPS performance? I don't have an access to working S2D, then I cannot give you the exact name of that couter. Look for "Cluster Cache" or "Cache". We have a S2D cluster with 3 Dell Rxd servers.
One of the nodes has exactly the same issue as you described earlier. This server is not showing enclosure details in failover cluster manager or server manager. Hence, they are not going to replace any parts and want us to open a support case with Microsoft.
Your issue seems to be solved by replacing the HBA controller and the backplane. How did you or Dell investigated this issue and concluded these parts needed to be replaced? Did you use tooling, found logs, etc? Yes, it was a hardware issue, failed SCSI controller. I think that without this device OS cannot determine in which server a particular disk is placed. This issue was discovered in Dell servers and HBA controller, but this LSI chipsed can be found in many other controllers in other verndors.
It was hard to figure it out since everything else worked properly. Yes I figured that out as well. Problem is, I have one system Dell xd where the Generic Enclosure device is found and three where it is not and are otherwise working fine. How did you determine what a functioning HBA looks like? I know this topic is about five years old but I was searching for the same driver today and took a while. Note: If you're clicking this link while signed into these forums it will attempt to search Dell Community, not Dell.
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