HP StorageWorks 6000 HP StorageWorks 6000-series Virtual Library System User G - Page 153

LUN Mapping, LUN Mapping (v3.x), Setting the Default LUN Mapping

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4. Click Host LUN Mapping Mode in the task bar. The Host LUN Mapping Mode window opens and displays a list of the host world wide port numbers (WWPNs) seen by the VLS FC host ports on the SAN (Figure 65). Figure 65 Host LUN Mapping Mode window . 5. Select Mapping Enabled in the Mapping Status box for each host for which you want to perform LUN masking. The hosts with mapping enabled are not able to access any of the virtual devices on the VLS until you give them access by performing "LUN Mapping (v2.x)" on page 159. 6. To assign a host name alias to a host WWPN listed, enter the host name in the Hostname box. 7. To add a host WWPN to the list that is not plugged into the SAN yet, enter the host WWPN number and then click Add. 8. When you are finished making changes, click Apply Settings. LUN Mapping The method of LUN mapping differs between VLS firmware versions 3.x and 2.x. LUN Mapping (v3.x) LUN mapping is used to present only a subset of the VLS virtual devices to a host. If LUN mapping is enabled, the VLS prevents all hosts connected to the VLS through the SAN from viewing any virtual devices until they are explicitly mapped to the host. By disabling LUN mapping, the VLS allows all hosts connected to the VLS to access all virtual devices configured on the VLS. By default, LUN mapping is disabled. The setting you choose will apply to every new host that you add to the VLS. See "Setting the Default LUN Mapping" on page 153. Setting the Default LUN Mapping You can set a global default to disable or enable LUN mapping. The setting you choose will apply to every new host that you add to the VLS. • All Devices (LUN mapping disabled) - The default. The VLS allows all hosts connected to the VLS through the SAN to access all virtual devices configured on the VLS. • User-Defined (LUN mapping enabled) - the VLS prevents all hosts connected to the VLS through the SAN from viewing any virtual devices until they are explicitly mapped to the host. HP StorageWorks 153

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4.
Click
Host LUN Mapping Mode
in the task bar.
The Host LUN Mapping Mode window opens and displays a list of the host world wide port
numbers (WWPNs) seen by the VLS FC host ports on the SAN (
Figure 65
).
Figure 65 Host LUN Mapping Mode window
.
5.
Select
Mapping Enabled
in the
Mapping Status
box for each host for which you want to perform
LUN masking.
The hosts with mapping enabled are not able to access any of the virtual devices on the VLS until
you give them access by performing
“
LUN Mapping (v2.x)
”
on page 159.
6.
To assign a host name alias to a host WWPN listed, enter the host name in the
Hostname
box.
7.
To add a host WWPN to the list that is not plugged into the SAN yet, enter the host WWPN
number and then click
Add
.
8.
When you are finished making changes, click
Apply Settings
.
LUN Mapping
The method of LUN mapping differs between VLS firmware versions 3.x and 2.x.
LUN Mapping (v3.x)
LUN mapping is used to present only a subset of the VLS virtual devices to a host. If LUN mapping is
enabled, the VLS prevents all hosts connected to the VLS through the SAN from viewing any virtual
devices until they are explicitly mapped to the host. By disabling LUN mapping, the VLS allows all
hosts connected to the VLS to access all virtual devices configured on the VLS. By default, LUN mapping
is disabled. The setting you choose will apply to every new host that you add to the VLS. See
“
Setting the Default LUN Mapping
”
on page 153.
Setting the Default LUN Mapping
You can set a global default to disable or enable LUN mapping. The setting you choose will apply
to every new host that you add to the VLS.
•
All Devices (LUN mapping disabled)
–
The default. The VLS allows all hosts connected to the VLS
through the SAN to access all virtual devices configured on the VLS.
•
User-Defined (LUN mapping enabled)
–
the VLS prevents all hosts connected to the VLS through
the SAN from viewing any virtual devices until they are explicitly mapped to the host.
HP StorageWorks
153