Hitachi Command Suite 8 User Guide

As you enter information in a dialog box, if the information is incorrect, errors
that include a description of the problem appear at the top of the box.
Table 5-5  Allocate Volumes dialog boxFieldSubfieldDescriptionHost-If you select one or more hosts (including virtualization
servers, or file servers) prior to clicking Allocate Volumes, the
host names are displayed. If you did not select hosts, you are
prompted to do so. The host drop-down list displays a single host, by name. Additionally, Select...

FieldSubfieldDescriptionFor global-active device, from the primary/secondary tabs, youmust select primary and secondary storage systems that have
been previously identified in the global-active device setup.Virtual Storage
Machine-This displays a list of one or more virtual storage machines
from which you can choose during volume allocation. The
virtual storage machines can also be viewed on the
Administration tab by selecting Virtual Storage Machine.
When allocating global-active device paired volumes,...

FieldSubfieldDescriptionNote: This field is replaced by Volume Selection when Dynamic
Tiering is selected (see the previous Volume type section).Volume
Selection-This field displays only if Dynamic Tiering is selected (see
volume type above).
Note:  This field is not the same field as the Volume Selection
field defined in the following Advanced Options Group section.
Select Automatic to allow the system to configure volume
allocation space for you from available DP pools.
Select Automatic and click...

FieldSubfieldDescriptionFor a Basic Volume, Device Manager selects a parity groupbased on the volume criteria. The selected parity group
changes with changes in criteria. If desired, click Select Parity
Groups to make your selection.
For Dynamic Provisioning volumes, the system selects an HDP
pool based on volume criteria. The selected HDP pool changes
with the changes in criteria. New volumes may be created or
existing volumes may be used. If desired, click Select Pool to
make your pool selection.
Drive...

FieldSubfieldDescriptionSelect auto or manual to locate or identify an Initial LDEV IDfor volume creation.Format TypeThis field displays formatting methods that are available for the
volume to be created, and available for basic volumes on the
specified storage system. For example, you might see options
for setting either a quick or a basic format.
Note that during a quick format, the load might become
concentrated on some components, lowering the I/O
performance of all hosts that are running in the...

FieldSubfieldDescription>> LUN Path
Options(See the
following two
fields for
details)Click LUN Path Options to display the fields and buttons for configuring LUN paths (the storage port to host port mappings
that connect volumes to hosts).No. of LUN
paths per
Volume-Specify the number of LUN paths to allocate per host. Changing
the path count may cause the system to suggest a new path for you automatically.
Click Edit LUN Paths to assign or change LUN paths. LUN paths
can be displayed in either graphical...

FieldSubfieldDescriptionNameDisplays host group information for hosts that are in a host
group. For hosts that are not in a host group, a host group can be created by entering a name for a host group as needed.Host Group
Settings in
DetailThis button displays a list of host groups than can be used
during volume allocation, or which were previously created for
prior volume allocations.Host modeSelect the host mode that supports the host type for which you
are allocating volumes.Host mode
optionsSelect one...

FieldSubfieldDescriptionPair
management
server-Displayed hosts will be pair management servers configured
during global-active device setup.Instance IDNewCreate a new configuration definition file (with a new instance
ID). The entered instance ID is validated to prevent duplicates.
You can also specify a specific UDP port number for communications. Available UDP port numbers are:
• 0 - 899
• 999 - 4093ExistingUse an existing configuration definition file. The existing
instance IDs are listed.>> Pair...

FieldSubfieldDescriptionSelecting
MethodSelect Use an existing iSCSI Target to indicate that you want to use existing iSCSI targets. Select Create an iSCSI Target to
indicate that you want to create new iSCSI targets.NamePrompts you to create a new iSCSI target, or displays the
existing iSCSI target name.iSCSI Target
Settings in
DetailDisplays a list of iSCSI targets that can be used during
allocation. This also displays iSCSI targets that were set after
the task for allocating volumes was executed.Host...

•Allocating global-active device pairs using existing volumes on page 293
•
Adding redundancy to open-allocated volumes  on page 295
•
Configuring pair management servers  on page 289
Related references
•
Volume allocation methods  on page 190
•
Notes on performing quick formats  on page 140
About clustered-host storage Clustered-host storage is a storage configuration that is created when
volumes are allocated to a new host (or file server) that is added to a host group (also known as a host cluster)....