Hitachi Command Suite 8 User Guide

							Private logical groupsTop-level folder that corresponds to each user group.
• Private logical group folder that contains groups of hosts and volumes that are grouped by business function, geographic, or other organizationaldivisions.
• Logical groups of hosts.
• Logical groups of volumes.
The following figure illustrates the structure of logical groups.
The following descriptions and figures show key differences between publiclogical groups and private logical groups.
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							• In public logical groups, any HCS user can access public logical groups.
• In private logical groups, only users that belong to specific user groups canaccess the private logical groups that are associated with the user groupsto which they belong.
The Private Logical Groups root folder can include separate private logical groups thereby maintaining a logical separation between business
organizations or tenants, to provide for the secure sharing of resources.
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							For each of these tenant user groups, only users that belong to the usergroup can see or access the private logical groups for that user group.
When a user group is created, HCS automatically creates a top-level folder
for each user group under the Private Logical Group folder. The default name of the folder is the user group name. All members of the user group
can use this top-level folder as their work folder. In this work folder, users
can create, edit, or delete private logical groups. You can change the default name for the top-level folder name.
However, if you edit the user group name, the names are notsynchronized. When a user group is deleted, the top-level folder under the Private Logical Groups root folder is also deleted. Be aware that all foldersunder the top-level folder are also deleted when the user group is deleted.
The following table describes in more detail the structure for public and
private logical groups and the access rules for each logical group type.
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							Table 9-1  Logical groups structure
TypeDescriptionPublic Logical GroupRoot folder for public logical groups>public-logical-groupEach public logical group can be a logical group of hosts, a logical
group of volumes, or a logical group folder that contains both
hosts and volumes. All users can access these public logical
groups.Private Logical GroupRoot folder for private logical groups>  user-group-name  top-level
folderA top-level folder for each user group. This folder is created by
HCS under the Private Logical Groups folder and can be used as a work folder for a user group. The default name of this top-level
folder is the name of the user group. You cannot add, move, or
delete these work folders except by adding or deleting a user
group. When you delete a user group, the corresponding top- level folder and all included private logical groups under it are
also deleted.
Users that belong to the corresponding user group can create,
edit, or delete private logical groups inside this folder.>>  private-logical-groupEach private logical group within a  user-group-name folder can
be a logical group of hosts, a logical group of volumes, or a
logical group folder that contains both hosts and volumes. These logical groups can only be accessed by members of the user
group to which this logical group belongs. Users that belong to
the user group can create, edit, or delete private logical groups
inside the  user-group-name  folder.
If you have a registered Tiered Storage Manager license, use the Mobility tab
to check the volume status for each logical group or to optimize dataarrangements. To efficiently find logical groups that have usage problems,
use the Mobility tab to check their rankings. For example, such as any logical groups with a small amount of unused capacity or that use a large amount of
capacity by drive type (for example: FMD, SSD, SAS, or SATA). The Tiered
Storage Manager provides more detailed volume information such as IOPS,
response time, and used capacity for each tier in the system in addition to
the status information displayed by the Resources tab.
If you do not have a registered Tiered Storage Manager license, use the
Resources tab to check the volume status for each logical group. For
example, the Resources tab displays the following volume status-related
categories displayed in the application pane:
• Volume
• Storage System
• WWN Nickname
• Port
• Port Type
• LUN
• Capacity
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							Related tasks
•
Creating logical groups  on page 355
•
Editing logical groups  on page 357
•
Viewing logical group reports  on page 356
•
Performing operations from a logical group  on page 357
•
Deleting logical groups  on page 358
•
Creating user groups  on page 127
Creating logical groups HCS supports two types of logical groups: Public Logical Groups and PrivateLogical Groups.
Prerequisites
• Verify that any host to be assigned to a logical group is a normal host, a virtualization server, or a virtual machine registered as a host.
Observe the following restrictions:
• File servers cannot be assigned to a logical group.
• Mainframe volumes (MF-Vols) cannot be assigned to a logical group.
• Child groups cannot be created below host or volume groups. Child groups can be created only below folders.
Procedure 1. On the  Resources  tab, select  Logical Groups .
2. Create a logical group using one of the following methods:
• For a Public Logical Group, select the Public Logical Groups root folder and click  Create Logical Group .
• For a Private Logical Group, select the Private Logical Groups root folder, select a top-level folder for each user group under the Private
Logical Group folder, and then click  Create Logical Group.
3. In the  Create Logical Group  dialog box, enter information in the  Name
and  Description  fields, and select one of the following  Create as
options:  Folder, Group of hosts , or Group of volumes .
• To create a folder, click the  Folder option and click  OK.
• To create a group of hosts, click the  Group of hosts option, and
choose how to specify hosts for a logical group by selecting one of the
following  Specify hosts  options: By Search Criteria  or Manually .
If you selected  By Search Criteria , click Add Criteria  in the list of
criteria. In the  Add Conditions  dialog box, specify values for  IP
Address Criteria , Name Criteria , and Operating System Criteria
as needed. You can also choose to click  Search Result Preview,
select one or more hosts in the list of hosts, and click  Add to add
them to the list of hosts, and then click  OK.
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							If you selected Manually, click Add Hosts  and in the  Add Hosts
dialog box, select one or more hosts from the lists of hosts, click  Add
to add them to the list of selected hosts, and then click  OK.
• To create a group of volumes, click the  Group of volumes option,
and choose how to specify volumes for a logical group by selecting one
of the following  Specify volumes  options: By Search Criteria  or
Manually .
If you selected  By Search Criteria , click Add Criteria  in the list of
criteria. In the  Add Conditions  dialog box, specify values for  Usage
Criteria , Storage System Criteria , and Volume Criteria  as needed.
You can also choose to click  Search Result Preview, select one or
more volumes in the list of selected volumes, click  Add, and then click
OK .
If you selected  Manually, click Add Volume  and in the Add
Volumes  dialog box, select one or more volumes from the list of
available volumes, click  Add to add them to the list of selected
volumes, and then click  OK.
4. Repeat this process for each new logical group that you want to create.
5. To create a hierarchy of logical groups, repeat step 2.
Result
New logical groups appear on the Resources tab under Logical Groups.Tip:  To delete logical groups, select the logical groups to be deleted, click
Delete Logical Groups, and click OK.
Related concepts
•
About logical groups  on page 350
Related tasks
•
Editing logical groups  on page 357
Viewing logical group reports You can view summary reports for specified logical groups.
Procedure 1. On the  Resources  tab, click Logical Groups .
2. Expand the tree and select the target logical group.
Related concepts
•
About logical groups  on page 350
Related tasks
•
Creating logical groups  on page 355
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							Editing logical groupsYou can edit a logical group to change the name and description, move alogical group to another logical group folder, select a new parent logical
group, or edit a logical group to add or remove hosts or volumes.
If data placement profiles for HDT volumes are created, a change of logical groups is reflected for the structure of data placement profiles.
Procedure 1. On the  Resources  tab, click Logical Groups .
2. Select  Public Logical Groups  or Private Logical Groups .
3. In the list of logical groups on the application pane, click the row for the
logical group you want to edit, and click  Edit Logical Group.
4. Edit the name or description of the logical group.
5. Click  Change Location  to move the logical group to another logical
group folder, select a new parent logical group, and click  OK.
6. Select the logical group for the volumes or hosts that you want to add or
remove, and click  OK .
7. Click  OK to finish editing the logical group.
Result
Changes are reflected in the Logical Groups tree in the navigation pane, and in the details of the logical groups.
Related concepts
•
About logical groups  on page 350
Related tasks
•
Creating logical groups  on page 355
Performing operations from a logical group You can perform tasks on storage systems by starting from a logical group.
Procedure 1. On the  Resources  tab, select  Logical Groups , and select either  Public
Logical Groups  or Private Logical Groups .
2. Expand the appropriate logical groups tree and select the target logical
group.
3. Select a host or volume.
4. Click on the task type you want to perform such as  Allocate Like
Volumes , Edit Labels , Edit LUN Paths , or Export to CSV , or click
More Actions  for additional choices.
5. If needed, update the task name and provide a description.
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							6.Click  Submit .
7. You can check the progress and result of the selected task on the  Tasks
& Alerts  tab, and verify the results.
Related concepts •
About logical groups  on page 350
Related tasks
•
Creating logical groups  on page 355
Deleting logical groups You can delete logical groups when they are no longer required.
Procedure 1. On the  Resources  tab, select  Logical Groups .
2. Depending on the type of logical group you want to delete (public or
private), do one of the following:
• Click  Public Logical Groups  in the navigation pane, and then select a
logical group from the list of logical groups in the application pane.
• Expand  Private Logical Groups  in the navigation pane, select a
logical group folder from the navigation pane, and then select a logical group from the list of logical groups in the application pane.
3. Click  Delete Logical Groups .
Tip: Deleting a user group deletes the private logical group folder and all
the logical groups in that folder. You cannot delete a top-level folder for
each user group under the Private Logical Group folder.
4. Click  OK to confirm and delete the logical group.
Result
The logical group you deleted no longer appears in the list of logical groups.
Related tasks
•
Deleting user groups  on page 129
Managing storage tiers This module describes how to manage tiers.
About tier-based storage management In Hitachi Command Suite, you must have a Tiered Storage Manager licenseto perform tier-based storage management operations.
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							In a tier-based storage management system, storage system resources aregrouped and managed in tiers. Tiers can be created for volumes or for
Dynamic Provisioning (DP) pools to allow high-capacity resources to be
centrally managed.
Tiers allow you to allocate data according to its purpose. This allocation can
be done by grouping drives in a storage system by type, or by creating groupings of particular tasks or functions. For example, you can allocate
frequently accessed data to a tier of high-reliability drives or storage
systems.
You can also use storage system resources more efficiently by storing data
that is only for archive purposes on a tier of SATA drives or older storage
systems. A volume can also have a volume belong to multiple tiers.
When you are managing a large variety of resources in tiers, you can check
the performance status of all the resources in the tiers at the same time, and you can select the migration-source and migration-target volumes for data
migrations from the tiers. By selecting tiers that match all the requirements
when volumes will be allocated to hosts, you can allocate all the necessary
volumes from the selected tiers at the same time.
Related tasks
•
Creating tiers  on page 359
•
Expanding a tier  on page 360
Values to ensure acceptable tier performance The values below ensure the operation of Tiered Storage Manager.
Performance might slow down or memory might become insufficient if a value
exceeds these values.
Table 9-2  Tiered Storage Manager operational values
ItemValue for which performance is ensuredRecommended valueNumber of tiers in a
single storage system10030 or lessNumber of unused
volumes a tier1,3001,000 or less
Creating tiers
Create tiers to prioritize data based on accessibility requirements.
Prerequisites
• You must have a valid license for Tiered Storage Manager. • Register one or more of the following Hitachi storage systems: ○Virtual Storage Platform G1000
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							○Virtual Storage Platform
○ Universal Storage Platform V/VM
○ USP
○ HUS VM
Procedure 1. On the  Resources  tab, select  Tiers.
2. Select the storage system for which to create a tier.
3. Click  Create Tier .
4. Specify the appropriate information.
5. Click  OK.
Result
The tier is created and added to the storage system.
Related concepts
•
About tier-based storage management  on page 358
Related tasks •
Expanding a tier  on page 360
•
Deleting tiers  on page 361
Expanding a tier Edit a tier to expand it.
Prerequisites
A Tiered Storage Manager license must be registered.
Procedure 1. On the  Resources  tab, select  Tiers.
2. Expand the tree, and select the storage system with the tier you want to
expand.
3. From the list of tiers in the application pane, select the tier you want to
expand and click  Edit Tier.
4. Specify the appropriate values.
5. Click  OK.
6. Confirm that the tier has expanded.
Related concepts
•
About tier-based storage management  on page 358
Related tasks •
Creating tiers  on page 359
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