RDM Shared disk

[vjackie]

I configured two VMs use shared RDM:

VM Node 1:

    1. Add new harddisk as a Raw Device Mapping

    2. Edit Settings of the VM, Select the "SCSI Controller 1" (Controller of new disk) .SCSI Bus Sharing :Physical

VM Node 2:

    1. Add the new harddisk as an Existing Virtual Disk, browse the datastore to the foler VM Node 1.

    2. Edit Settings of the VM, Select the "SCSI Controller 1" (Controller of new disk) .SCSI Bus Sharing :Physical

When I'm power on VM1 and create new file, I can not see that file on VM2. But I restart VM2 that file appear.

How can I see that file  without restarting VM2

Thanks

[a_p_]

Which OS did you install on the VMs. Unless the OS has a cluster aware file system you can access the shared LUN by only a single VM at any given time in order to not risk data corruption. In case of an MSCS, an NTFS formatted LUN will always be visible for just one cluster node.

André

[KamilAzmer]

What type of OS that you use.

For RDM, you doesnt need to use existing disk. You need to select RDM and point the same thing, afraid that the .vmdk pointer is locking during the power-on if you using the existing.

and same as what a.p mention that you OS must be cluster aware.

[Cyberfed27]

Agree with the other guys, your VM Guest OS needs to be running some sort of cluster aware software to treat the RDM has a clustered disk.

If not you will damage the disk data sooner rather than later.