HP XP P9000 Command View Advanced Edition Software - Manual (Page 68)

Descriptions Subfields
Fields and
Dropdowns
For hosts in a host group, host group information is displayed. For hosts
not in a host group, a host group can be created. Enter a name if a host
group is needed.
Name
This button is used to display a list of host groups to be used during volume
allocation, or which were previously set during prior volume allocations. Host Group Set-
tings in Detail
Select the host mode that supports the host type for which you are allocating
volumes.
Host mode
Select one or more host mode options for supporting special requirements
for specific applications. Host mode op-
tions
LU numbers can be assigned automatically or manually for the volumes
being allocated.
To automatically assign LU numbers to the allocated volumes, select auto
and enter a start from number (or use the default). LU numbers are set in
ascending order while avoiding existing numbers.
To manually assign LU numbers to the allocated volumes, select manual
and click Select LU Number to choose a starting LU number.
auto or manual
selection buttons
LU Number
Option for manually specifying the starting virtual LDEV ID to use for
allocated volumes. Volumes for which virtual IDs have not been specified
are assigned a new virtual LDEV ID when they are allocated to a host that
belongs to resource groups used for a data migration that uses virtual IDs.
Virtual LDEV IDs are assigned automatically by default, with unused IDs
assigned to volumes in ascending order. If a user manually specifies an
ID, volumes will receive the lowest available ID that is equal to or greater
than the specified value.
(See next field
below)
>> Virtual ID
Settings (drop-
down)
The logical disk controller number that forms part of the starting virtual
LDEV ID.
LDKC
Starting virtu-
al LDEV ID
Targets
The control unit number that forms part of the starting virtual LDEV ID. CU
The device number that forms part of the starting virtual LDEV ID. DEV
About LUN path management
When you allocate a volume to a host, HP StorageWorks P9000 Command View Advanced Edition
Suite allows you to assign or edit LUN paths between one or more volumes and one or more hosts.
LUN paths provide volume access for the host by pairing storage ports and host ports. For example,
one or more storage ports can be mapped to one or more host ports (host bus adapters (HBAs)).
After volumes have been allocated to a host, you can edit existing LUN path information to add new
paths and/or delete existing paths from a list of allocated volumes in the Storage Systems tree, Hosts
tree, Logical Groups tree, and from a list of volumes returned from a search.
When initially allocating volumes and setting LUN paths, or editing LUN paths later, WWN nickname
information can be displayed to confirm the host port (HBA). Please note the following conditions for
displaying WWN nicknames:
• WWN nicknames become visible when storage system information is refreshed. If WWN nicknames
are updated on the storage system, another refresh is needed to ensure the latest information.
Managing storage resources in a SAN environment 68