RDM unreadable in Win2k3

[emp618]

Hi

I have a RDM of a 1TB LUN in ESX 3.5 that is assigned to a Win2k3 guest. I go into Computer Management and the disk just shows up as unreadable meaning that I cannot partition or format the disk.

How can I format this or create a partition on it?

[VTorque]

Is the disk initialised?

If not, you may just need to right click the actual disk in disk mangement (where it says Disk 0, Disk 1, etc) before you can partition or format it.

[emp618]

Hi

I dont actually get an option to initialize the disk. When I right click, it just has properties and thats all I can choose from.

I'm thinking of rebooting the ESX servers just in case, but I cant seem to initialize, partition or format the RDM.

Am I correct in thinking that once a RDM disk has been added to a guest, you should simply be able to format the disk in the native partition format for that OS via the OS tools?

[VTorque]

Thats correct - you should be able to use it just like you would if you'd just added another vmdk.

Is the LUN in Read-only or something maybe?

[Texiwill]

Hello,

I would make sure the proper LUN is mapped to the VM as well. Check presentation, etc within the iSCSI server/SAN as well as check to make sure you have the proper LUN.

Best regards,

Edward L. Haletky

VMware Communities User Moderator

====

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