Use this panel to view and perform one of the actions listed below
on the data logical unit numbers (LUNs) designated for use by SAN File System,
but not currently assigned to a user storage pool.
Available data LUNs are the writable data LUNs that can be seen
by SAN File System, but have not yet been assigned to a user storage pool.
Tip: To view all data LUNs that SAN File System can access, whether
or not they have been assigned to a user storage pool, select the Data
LUNs panel.
Fields
Using
the following panel fields, specify settings from which to create the available
data LUNs table and press Refresh.
Client Selects a client that can see the data LUNs. |
Method of fetching the LUN information Selects the method to use in order to fetch the LUN information from cache
or to rediscover the LUNs. |
Refresh Refreshes the Available Data LUNs table based on the selected client and
fetch method. |
Actions
Add as volumes to a user pool Takes you to a wizard for adding a volume to a storage pool. Tip: When
entering the Add Volumes wizard from the Available Data LUNs panel,
your chosen LUNs are preselected in the wizard.
|
Clients that can see the LUN Lists the clients that can see the selected data LUN. |
Details Displays additional LUN details, such as OS device path and sector size. |
Fields
The
available data LUNs table allows you to select one or more LUNs to add as
volumes to a user storage pool or perform one of the other actions described
above. In addition, the table fields provide the following information:
LUN ID Identifier of the LUN. 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 state 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 cannot process 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.
|
|
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 worldwide node name (WWNN) of the hosting storage
device (for example, ESS or DS (FAStT)). This information
can help you ensure that all LUNs in a storage pool are from the same storage
device. |