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Changing Host LUN Assignments

Adding (mapping) a Host LUN

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

NOTE: On a SANnet II 200 SCSI array, you can create up to eight logical drives with up to 32 partitions per logical drive. On a SANnet II 100 Blade SCSI array, you can create up to six logical drives with up to 32 partitions per logical drive. For both SCSI arrays, there is a maximum of 128 LUN assignments, and a logical volume can be divided into a maximum of 32 partitions. On a SANnet II 200 FC array, you can create up to eight logical drives with up to 128 partitions per logical drive.

 

  1. Select Configuration > Custom Configure.
  2. From the Custom Configuration Options menu, select Change Host LUN Assignments. The Change Host LUN Assignments window is displayed.
  3. Using 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 LUNs 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.

    NOTE: When a logical drive/logical volume is added or created, it is assigned as either primary or secondary (controller assignment). A logical drive/logical volume is then initialized and mapped to a primary or secondary channel ID. If you unmap a logical drive/logical volume and remap it to another host channel ID that has a different controller assignment, you must reset the controller. If you unmap a logical drive/logical volume and remap it to another host channel ID that has the same controller assignment, you do not have to reset the controller. If a logical drive/logical volume has remaining partitions still mapped, the unmapped partitions can only be mapped to host channel IDs of the same controller assignment.

  5. Select the desired partition from the LDs/LVs field, and click Assign Host LUN to accept the change.
  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, Delete 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 Delete Host LUN.

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

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

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