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Changing Host LUN Assignments

For the server to recognize a logical drive/logical volume, it must first be mapped to a host channel/ID. When a logical drive/logical volume is mapped to a host channel/ID, it becomes a logical unit number (LUN). The following section describes how to map a logical drive/logical volume to a host channel and how to remove it.

NOTE: When logical drives/logical volumes are first created, unless Do Not Map is selected, the host LUNs are automatically mapped after logical drives/logical volumes have completed the initialization process.

NOTE: On a SANnet II 200 SCSI array and the SANnet II 220 SCSI array, there is a maximum of 128 LUN assignments. On a SANnet II FC array and SANnet II SATA array, there is a maximum of 1024 LUN assignments (maximum number of LUNs assigned to each host ID is 32).

Adding or Changing (Mapping) a Host LUN

  1. Choose Configuration > Custom Configure.
  2. Click Change Host LUN Assignments. The Change Host LUN Assignments window is displayed.
  3. From the Select Host Channel and SCSI ID list box, select the channel and ID to which the LUN is to be assigned.
  4. All available logical drives are displayed under Partitions. For your reference, Used LUNs displays a list of LUNs used for a specified channel and Partition Assignment displays a list of channels, IDs, and LUNs to which a partition has been assigned.

  5. Select the partition you want to map, and click Assign Host LUN.
  6. To map multiple partitions (up to 32), select the first partition, scroll to the last partition, and Shift-click to select everything in between. Then click Assign Host LUN.

    As a result, Unmap Host LUN becomes active.

  7. When finished, click OK to save your changes and return to the main window.
  8. NOTE: In the event that an error message is displayed when mapping a host channel, repeat steps 1 through 5.

Deleting a Host LUN

  1. With the Change Host LUN Assignments window displayed, select the LUN to delete from the Host LUN Assignments field.
  2. Click Unmap Host LUN.

  3. When finished, click OK to save your changes and return to the main menu.

The Logical Drive/Logical Volume Number

For important information regarding the logical drive/logical volume number displayed in the LD/LV field in the Change Host LUN Assignments window, see The Logical Drive/Logical Volume Number.

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