74 External Storage XP for the XP12000/XP10000
• Mode
Mode the RAID Manager user assigns to the logical volume.
• Zer: Zero Read Cap mode is assigned to the logical volume.
• Inv: Invisible mode is assigned to the logical volume.
• Zer/Inv: Zero Read Cap and Invisible mode are assigned to the logical volume.
•Hyphen (-): The RAID Manager user has not assigned a mode to the logical volume.
• Extent
Indicates whether extents are set.
•Asterisk (*): Extents are set.
•Hyphen (-): Extents are not set.
• Used Volumes
Licensed capacity for LUN Security XP Extension that the LU has used.
Setting alternate paths for external LUs
Before you can use an external LU mapped as an internal XP LDEV, set at least one alternate path from the
internal XP LDEV to the external LU (likely by way of an alternate controller). The number of alternate paths
set is the same as the number specified on the Add LU or Auto Map Setting window when the LU was
mapped as the internal XP LDEV. For more information, see ”Alternate paths” on page 22.
Use the Path Setting window (Figure 40) to add and define alternate paths to the paths set at mapping or
change the alternate paths.
NOTE: You can add or delete alternate paths by selecting multiple external LUs at one time. For more
information, see ”Adding alternate paths to multiple external LUs (Add Paths)” on page 79 and ”Deleting
alternate paths for multiple external LUs (Delete Paths)” on page 80.
CAUTION: If the specified number of alternate paths is out of range (for example, too few), an error
appears in the Preset list.
Use the Path Setting window (Figure 40) to define alternate paths.
You can perform the following operations on the Path Setting window:
• ”Defining alternate paths” on page 77
• ”Changing an alternate path’s priority” on page 77
• ”Canceling defined alternate paths” on page 78
• ”Changing alternate paths” on page 79
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