Connecting to an RDM LUN on a guest OS

You can connect your SnapDrive for Windows host to an RDM LUN on a guest OS using the Connect Disk wizard in the SnapDrive MMC snap-in.

Before you begin

Steps

1. Under SnapDrive in the left MMC pane, expand the instance of SnapDrive you want to manage. Then, select Disks.
2. From the menu choices at the top of MMC, navigate to Action > Connect Disk.
3. In the Connect Disk wizard, click Next.
4. In the Provide a Storage System Name, LUN Path and Name panel, perform the following actions:
   1. In the “Storage System Name” field, type the name of the storage system where the LUN will be connected, or choose a storage system from the drop-down list.
   2. In the “LUN Path” field, type the path to the LUN. Alternatively, click Browse and navigate to the LUN you want to connect.
   3. Click Next.
5. In the Select a LUN Type panel, select Dedicated, and then click Next.
6. In the Select LUN Properties panel, perform the following actions:
   1. Either select a drive from the list of available drive letters, or enter a mount point for the LUN you are connecting. When you create a volume mount point, enter the drive path that the mounted drive will use: for example, G:\mount_drive1\.
      Note: The root volume of a new mount point must be owned by the node on which you are creating the new disk.

   2. Click Next.
7. In the Select Initiators panel, choose at least one initiator for the LUN you are creating from the list of available initiators, and then click Next.
   Note: If MPIO is installed on the system, you can select multiple FC initiator ports. You cannot select both iSCSI and FC initiators when creating a LUN on a guest OS.

8. In the Select Initiator Group Management panel, specify whether you will use automatic or manual igroup management.

   If you select automatic igroup management, SnapDrive uses existing igroups or, when necessary, creates new igroups for the initiators you have specified. If you select manual igroup management, you manually choose existing igroups or create new ones as needed.

   If you specify...	Then...
   Automatic igroup management	Select Automatic, and then click Next.
   Manual igroup management	Select Manual, click Next, and then, in the Select Initiator Groups panel, perform ONE of the following actions: Select from the list the igroups to which you want the LUN to belong, then click Next. Note: A LUN can be mapped to an initiator only once. Click Manage igroups, and for each new igroup you want to create, type a name in the Igroup Name text box, select initiators, and click Create. Then, click Finish to return to the Select Initiator Groups panel, and click Next. Note: The Next button in the Select Initiator Groups panel remains unavailable until the collection of selected igroups contains all the initiators you previously selected for use.

9. If you selected an FC initiator on an ESX server in the Select Initiator Group Management panel, then the Select a Datastore panel is displayed.

   If your virtual machine resides on a...	Then...
   VMFS datastore	Choose either Store with Virtual Machine, which is the default, or choose Specify datastore to select a different VMFS datastore for your virtual machine disk format (VMDK) file to reside. Click Next.
   NFS datastore	Choose Specify datastore to select a different VMFS datastore for your VMDK file to reside. The Store with Virtual Machine option is unavailable because a VMDK file cannot be stored on an NFS datastore. Click Next.

10. In the Completing the Connect Disk Wizard panel, perform the following actions:
    1. Verify all the settings.
    2. If you need to change any settings, click Back to go back to the previous wizard panels.
    3. Click Finish.

    The newly connected LUN now appears under SnapDrive > Disks in the left MMC panel.