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: 2105F20 ESS F20 | 2105800 ESS 800 | 2145 SAN Volume Controller and SAN Integration Server | 3552 FAStT5000 | 1722 DS4300 (FAStT600) | 1742 DS4400 and DS4500 (FAStT700 and FAStT900) | |
Storage Device WWNN The unique identifier, also known as the worldwide 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. |
Storage Device WWPN The unique identifier, also known as the worldwide port
name (WWPN), of the storage device port. |
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. |