LUN ID The LUN identifier. When you click on a LUN ID in the table, you link
to additional details about the associated LUN. |
Volume Name The volume name, if the LUN is a volume assigned by SAN File System. The
system displays a dash (-) if the LUN has not been assigned as a volume. |
State The state of the LUN. The LUN states can be one of the following: Assigned Indicates that the LUN is already assigned to a SAN File System storage
pool as a usable volume. | Available Indicates the usable LUNs that can be seen by SAN File System, but are
not currently assigned to a storage pool. | Error Indicates that there was an error in determining the properties of the
LUN. | Unknown Indicates that the metadata server is not running, so a LUN state could
not be determined (that is, the property could not be queried). | Unusable Indicates the LUNs that are unsuitable to be a SAN File System volume.
Possible reasons that a LUN might be unusable include the following: - The LUN does not support read or write operations.
- There is inconsistent availability of a LUN from all servers in the cluster.
- There are disk or driver configuration errors.
- A LUN type is not recognizable to the system.
Note: The unusable state takes precedence over the assigned or available
states.
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Size (MB) The total size of the LUN in megabytes. |
Vendor The name of the vendor of the storage device associated with the LUN. |
Product The product name of the storage device that is associated with the
LUN. The system displays the following IBM® products in addition to other companies’
products: |
Storage Device WWNN The unique identifier, also known as the world-wide node name (WWNN),
of the storage device This information is helpful when you need to ensure
that all LUNs in a storage pool are from the same storage device. |
OS Device Path The path that points to the SAN Adapter driver. Tip: This
driver is local to the SAN File System cluster and is not on the LUN storage
device.
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Sector Size (Bytes) The size of the areas, given in bytes, where blocks of data are physically
stored on the LUN's associated storage device. |