VMware, GFS2 and Red Hat Cluster Suite
Hello
I want to implement Red Hat Cluster Suite with a shared file system GFS2 on hosts VMware running RHEL 5.7. I want the implementation to be fully supported by Red Hat and VMware.
This Red Hat https://access.redhat.com/kb/docs/DOC-46375 document says that VMDK is not supported, but that RDM (in virtual or physical Compatibility Mode Compatibility Mode) are fully supported when the perimeter fence fence_vmware_soap is used.
That's why I intend to place GFS2 filesystem on one of the two types of disc RDM (and obviously have the Red Hat operating system on another drive). I'm a bit confused about the options well! My questions are:
(1) the ROW should be added to an additional SCSI controller on the guest, or can it be on the same controller as local drive (OS)? for example I just have a SCSI controller for the guest, with both OS and GFS2 storage?
(2) how is the option 'Compatibility Mode' RDM (virtual or physical) affected by the option of 'sharing of SCSI Bus"of the SCSI controller (no, virtual or physical)? It's just different ways of putting the same thing? If so, which one is priority?
(3) is it possible to vMotion these prompts do not turn off?
Thanks a lot in anticipation, the experts!
Andy
norfolknog wrote:
(1) the ROW should be added to an additional SCSI controller on the guest, or can it be on the same controller as local drive (OS)? for example I just have a SCSI controller for the guest, with both OS and GFS2 storage?
No RDM do not need to be on their virtual SCSI controller
(2) how is the option 'Compatibility Mode' RDM (virtual or physical) affected by the option of 'sharing of SCSI Bus"of the SCSI controller (no, virtual or physical)? It's just different ways of putting the same thing? If so, which one is priority?
The RDM compatibility mode is chosen based on the cluster that you are proposing to run - if you plan to have have the cluster extend to ESXi hosts that you can select the physical compatibility. Similarly the shared SCSI Bus is also selected according to the configuration of cluster - physical if you plan to have a "cluster - everywhere-boxing ' or virtual, if you plan a"cluster-in-a-box"."
(3) is it possible to vMotion these prompts do not turn off?
No you are not able to vMotion a virtual machine that is part of a Cluster of BONES.
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