I am facing a problem with Microsoft Cluster on Windows Server 2012 R2.
I will explain in steps:
- I had a Windows 2008 R2 cluster running Hyper-V;
- In this cluster, I have some disks presented by an iSCSI Dell storage;
- After the upgrade of servers to Windows 2012 R2, some disks cannot be recognized by cluster (when I try to add disks I receive the following message: No Disks suitable for cluster disks), in storage system nothing was changed, some disks (directly mapped to Red Hat virtual machines in a Passthrough mode) can't be added to cluster. The interesting fact that on Windows 2008 I presented these disks before without any problem, in the same way with Red Hat filesystem present.
- In the Windows Disk Management on each server I can see the disks and bring them online if I want (to workarround this problem I started VM machines outside the cluster on one node);
- I ran the cluster validation report before;
I am very concerned about this issue.
Any idea to help me?