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Assigning a LUN Filter
Assigning a LUN filter involves the following
steps:
Accessing the LUN Filter View
- From the main window, click the Filter
View tab.
- Click the container symbol to expand the
device trees for detailed views of the servers (hosts) in the left pane
and the array devices in the right pane.
Adding a New Host Manually
If you do not see the desired host displayed
in the left pane (under Hosts), add it manually through the Configure
Host/WWN window.
- From the main window, click the Filter
View tab.
- Choose Configuration > Configure Host/WWN.
NOTE: If the Configure Host/WWN
option is not enabled, select any one of the icons in the left pane
to enable it.
- If you are not already logged in as ssconfig
or ssadmin, a password prompt is displayed. Type the password
and click OK.
The Configure Host/WWN window is displayed.
- Under Available Hosts look for
the host.
If you see the host, go to Step 9.
If you do not see the host, continue
with Step 5.
- Under Available Hosts click Add.
The Add/Edit Host window is displayed.
- Enter the host name, IP address,
and the OS, and then click Add.
The Add/Edit HBA window is displayed.
- Enter the new adapter name and
the appropriate WWN, and then click OK.
For details on determining the WWN, see
Determining Host Worldwide Names, Worldwide
Node Names, and Worldwide Port Names.
- Click OK to close the Add/Edit
Host window.
- Under Available Hosts select the
host, and click Add to add the host to the Connected Hosts
list.
- Click OK to close the Configure
Host/WWN window.
A confirmation message is displayed.
- Click Close.
When you return to the Filter View
tab, the new host is available for LUN filtering.
- (Optional) If you want to map multiple
hosts to an array, choose Configuration > LUN Filter Properties,
and then select the array from the Select SANnet II Family System
list box.
Select the Hardware Filter and
Map to Multiple Hosts check boxes, and then click OK.
NOTE: If you uncheck the Hardware
Filter check box, you cannot assign LUN filter mapping; you can
only assign a standard map.
Adding an HBA Device Manually
If you do not see the desired HBA device
displayed in the left pane (under Hosts), add it manually through
the Configure Host/WWN window. You can add up to 64 WWNs per
array.
- Choose Configuration > Configure Host/WWN
.
NOTE: If the Configure Host/WWN
option is not enabled, select any one of the icons in the left pane
to enable it.
- If you are not already logged in as ssconfig
or ssadmin, a password prompt is displayed. Type the password
and click OK.
The Configure Host/WWN window
is displayed.
- Under Connected Hosts, select the
host that you want to add an HBA device to, and click Remove.
- Under Available Hosts, select the
host, and click Edit.
The Add/Edit Host window is displayed.
- Click Add.
The Add/Edit HBA window is displayed.
- Enter the new Adapter Name and
the appropriate WWN, and click OK.
For details on determining the WWN, see
Determining Host Worldwide Names, Worldwide
Node Names, and Worldwide Port Names.
- Click OK to close the Add/Edit
Host window.
- Under Available Hosts, select the
host, and click Add to move the host back to the Connected
Hosts list.
- Click OK to close the Configure
Host/WWN window.
A confirmation message is displayed.
- Click Close.
When you return to the Filter
View tab, the new HBA device is gray, and it is available for
LUN filtering.
Removing Standard Mapping
Before you can assign a LUN filter, you have
to remove the standard host mapping (indicated by M labels [Mapped] )
from the array. Standard mapping enables all hosts to see all standard
mapped logical drives. LUN filtering restricts the mapping to specific
host(s).
Follow this procedure to remove standard
host mapping:
- From the main window, click the Filter
View tab.
- From the right pane, click each All
Hosts item, and drag and drop it to Storage Pools.
A warning message is displayed.
- Click Yes.
A confirmation message is displayed.
- Click Close.
When you return to the filter tab, note
that the M label ( )
has been removed from the logical drive.
Assigning a LUN Filter
After you remove the standard mapping, you
are ready to assign a LUN filter by mapping logical drives to hosts.
- Select a logical drive under Storage
Pools, and drag and drop it to the appropriate HBA device under
Hosts.
A warning message is displayed.
NOTE: If the HBA device connected
to the array is not known, drag and drop the logical drive to the host
(server) in the left pane. The program prompts you to filter the array
for each HBA device in the host. When this happens, the logical drive
is visible to the HBA device on the host, but it is not visible (or
accessible) to any other HBA device.
- Click Yes.
The Specify Map Information window
is displayed. Note that SANscape automatically
maps the logical drive to the first HBA device listed in the host
if there is more than one HBA device.
- Assign the logical drive to a primary
or secondary controller and with the desired channels and LUN ID numbers,
and then click OK.
A confirmation message is displayed.
- Click Close.
The assignment of the primary controller
or secondary controller to an HBA device is selected for the initial
LUN filter assignment, and cannot be changed unless you delete the
LUN filter assignment and start over.
To apply a LUN filter to a second host
for one array, repeat the steps in Adding an HBA Device Manually
and Assigning a LUN Filter.
CAUTION: Because data corruption
can occur, a warning message is displayed if two users access the
same logical drive at the same time. This is a characteristic of some
host OSs. Click Yes to add the additional host.
An F (Filtered) ( )
label indicates that a LUN filter has been applied to the host.
Deleting a LUN Filter
- From the main window, click the Filter
View tab.
- From the right pane, select the associated
WWN, and drag and drop it to Storage Pools.
A warning message is displayed.
- Click Yes.
A confirmation message is displayed.
- Click Close.
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