Hitachi Command Suite 8 User Guide

							Migrate data dialog boxData migration provides the capability for moving data from a set of sourcevolumes to a set of destination volumes or DP pools, including those inexternally-connected storage systems.
The Migrate data dialog box is a wizard that guides you in configuring the
task for migrating selected data from a source location to a destination target.
For example, when you select a specific host, storage system, pool type, and click Apply, the corresponding volume information is displayed in the list of
selected volumes because this information is already known and is non-
configurable. To create a data migration task, you must complete a four-step
configuration process using the migrate data wizard.
When you enter the minimum required information in a dialog box, reviewthe Plan Summary, and click Submit to complete the configuration of this migration task. Click the Back button to modify the plan to meet your
requirements.
The following table describes the dialog box fields, subfields, and field
groups. A  field group  is a collection of fields that are related to a specific
action or configuration. You can minimize and expand field groups by clicking the double arrow symbol (>>).
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 8-3  Migrate Data dialog box
FieldSubfieldDescription1. Migration SourceStep 1 - Specify the criteria to select the source volumes.Logical group-Click Select to display the  Select Logical Group dialog box from
which you can select from the available types. After selecting, click
OK to continue.Host-The Host drop-down list displays available hosts from which you
can select.Storage
system-The Storage system drop-down list displays available storage systems from which you can select.
Note:  If the selected storage system supports or has
corresponding pools, the Pools drop-down list is active.Pool-The Pool drop-down list displays the available pools from which you can select.>>
Advanced
Options(See the
following fields
for details)Click >> Advanced Options to display the Volume criteria options.Optimizing storage performance341Hitachi Command Suite User Guide 
						

							FieldSubfieldDescriptionVolume
CriteriaCategorySelect an option from the Category drop-down list (for example, Storage System).AttributeSelect an option from the Attribute drop-down list (for example, Storage System Vendor).Attribute
ConditionSelect an option from the attribute condition drop-down list (for
example, is).ValueSelect an option from the Value drop-down list (for example,
Hitachi).
Click + to add additional volume criteria condition entries, or click -
to delete a specific volume criteria condition entry.Show entries
matchingSelect Any or All from the Show entries matching drop-down list. The setting you choose determines whether the source volumes
match the use of any or all of the specified criteria.ClearClick Clear to delete all existing volume criteria selections.ApplyClick Apply to define the selected volume criteria settings to select
the migration source volume.Step 2 -  Verify the selected volumes and click [Next].NextFrom the list of selected volumes, verify that these are the source
volumes you want to migrate, and click Next.
Note:  To observe details about a specific volume, click its name in
the Volume column to display the Detailed Information dialog box
for that volume.2. Migration TargetSpecify a pool, tier, or volume criteria for the migration targets.Storage
system-Identifies the selected storage system that is the migration source.Migration-
Target
Selection-Depending upon the selected storage system, choose one of the
following available migration target options:
• Pool
• Tier
• Volume CriteriaPoolClick Pool and select the pool migration target from the drop-down
list.Migration-
Target
Creation
Options-Choose one of the following Migration-Target Creation Options
options:
• Create new DP volumes
• Use existing DP volumesCreate new DP
volumesNote:  Volume criteria and Parity group selection rule are disabled
when you select Pool and Create new DP volumes as your
Migration Target Selection choices.
If you selected Pool and this option, click Next to continue on to
Step 3  in this process.Use existing DP
volumesNote:  Volume criteria is enabled and Parity group selection rule is
disabled.
If you select Pool, click Next and continue on to  Step 3 in this
process.342Optimizing storage performanceHitachi Command Suite User Guide 
						

							FieldSubfieldDescription>>
Advanced
OptionsMigration-
Target
Selection: PoolClick >> Advanced Options to display the Volume criteria options.Volume
Criteria-Note:  The Volume criteria drop-down list choices you make affect
each subsequent criteria option for the migration volume target.
For details on setting these options, see >> Advanced Options in Step 1  in this table.Migration-
Target
Selection-Depending upon the selected storage system, choose one of the following available migration target options:
• Pool
• Tier
• Volume CriteriaTierClick Tier and select the tier from the drop-down list to be the tier migration target.>>
Advanced
OptionsMigration-
Target
Selection: TierClick >> Advanced Options to display the Volume criteria options.
Note:  The Volume criteria drop-down list choices you make affect
each subsequent criteria option for the tier migration target. For
details on setting these options, see >> Advanced Options in  Step
1  in this table.Parity group
selection ruleClick Parity group selection rule, and select one of the following
parity group selection rule options:
• Balance Capacity (use the least utilized parity groups first)
• Maximum Coverage (use the maximum number of parity groups)
• Minimum Coverage (use the minimum number of parity groups)
Click Next to conclude selecting the tier migration target, and
continue on to  Step 3 in this process.Migration-
Target
Selection-Depending upon the selected storage system, choose one of the following available migration target options:
• Pool
• Tier
• Volume CriteriaVolume criteriaClick Volume criteria and click >> Advanced Options to specify the
volume criteria settings for the volume migration target.>>
Advanced
OptionsMigration-
Target
Selection:
Volume criteriaClick >> Advanced Options to display the Volume criteria options.
Note:  The Volume criteria drop-down list choices you make affect
each subsequent criteria option for the migration volume target.
For details on setting these options, see >> Advanced Options in Step 1  in this table.Parity group
selection ruleClick Parity group selection rule, and select one of the following
parity group selection rule options:
• Balance Capacity (use the least utilized parity groups first)
• Maximum Coverage (use the maximum number of parity groups)
• Minimum Coverage (use the minimum number of parity groups)
Click Next to conclude selecting the migration target, and continue
on to  Step 3  in this process.Optimizing storage performance343Hitachi Command Suite User Guide 
						

							FieldSubfieldDescription3. Migration PairEdit migration pairs.Analyze
Performance-Click Analyze Performance to display a report of historic performance for one or more selected migration pairs (this
requires a Hitachi Tuning Manager license).Do Not
Migrate-Click Do Not Migrate to remove one or more selected migration
pairs from migration consideration.Restore
Default Pairs-Click Restore Default Pairs to restore one or more selected
migration pairs to default values.Other
Candidate
pools for
Migration-From the other candidate pools for migration list, click Map Pools
to select other pools to map into the migration process.
Click Next to conclude editing the migration pairs, and continue on
to  Step 4  in this process.
Note:  If you selected any option besides Pool in Step 2 of this
wizard, you would click Map Volumes to select other volumes to
map into the migration process, and this list table would be titled
Other Candidate volumes for Migration.4. Show Plan and Option SettingVerify the plan for migrating data. You can also specify migration optionsPlan
Summary-In the plan summary list, review the following migration option settings:
• Storage System - listed system name and/or IP address
• Migration Source - listed host name, logical group name and location, and pool name
• Migration Target - listed pool or volume name
• Estimated Time - listed time to complete migration in hh:mm:ss format
If you disagree with the migration option settings, click Back and
make the necessary changes.>> Plan
Details-Click >> Plan Details to display the migration pairs list. Review the listed migration pairs .
If you disagree with the listed migration pairs, click Back and make the necessary changes.>> Migration
Options-Click >> Migration Options to display the following migration
options:
• Shredding
• Deleting
• Zero page reclaim
• Email address that received completion emails
After choosing your option, enter a task name and description in the appropriate Task name and Description text boxes.ShreddingClick the Shredding option to enable the destruction (shredding) of
deleted data from the source volume during the migration
operation.DeletingClick the Deleting option to enable deletion of the migration source
volume after migration.344Optimizing storage performanceHitachi Command Suite User Guide 
						

							FieldSubfieldDescriptionZero page
reclaimClick the Zero page reclaim option to enable the process where when volumes are migrated to DP volumes, any unused physical capacity in the target volumes is returned to the pool. Pools are
examined by the firmware, which if it verifies that no data other
than zeros are detected and physical storage is unmapped, it can
be returned as free storage capacity.Email address
that received
completion
emailsClick the Email address that received completion emails option and
enter a valid email address into the adjacent text box.>> Schedule-Schedule the running of the migration task by using one of the
following options:
• Now
• Later
Note:  After you leave this wizard, you can click the Tasks & Alerts
tab and view the status of any scheduled task.NowClick Now to schedule the running of this migration task now
(which is the default).LaterClick Later and specify a date and time to run the migration task in the Date and Time text boxes.View task
statusIf you select the View task status check box, you can check the
task status in the tasks list in the Tasks & Alerts tab.Submit-Click Submit to submit the migration task to the system.
Prerequisites for migrating data from an SMI-S enabled storage
system to another storage system
You can migrate data between an old and new storage system for abolishing
or merging systems by using the external storage connection function
(External Storage Management). The following figures provide an example of migrating data to Universal Storage Platform V when the SMI-S enabled storage system is abolished. To perform migration, use the GUI or CLI to
migrate data by the system.
Optimizing storage performance345Hitachi Command Suite User Guide 
						

							Related tasks
•
Migrating data from an SMI-S enabled storage system to another storage
system  on page 346
Migrating data from an SMI-S enabled storage system to another
storage system
You can migrate data from an SMI-S enabled storage system to anotherstorage system.
346Optimizing storage performanceHitachi Command Suite User Guide 
						

							Prerequisites
• Register a Tiered Storage Manager license.
• Set up Tiered Storage Manager CLI (if necessary). • Set up Device Manager CLI (if necessary)• Connect the port on the SMI-S enabled storage system to the External port of the storage system by using Fibre Channel or Fibre Channel over
Ethernet.
• Assign the volumes on the SMI-S enabled storage system to an External port (performed by the management tool of the SMI-S enabled storage
system).
• Gather the following information: ○Name or IP address of the allocation target host.
○ WWN and LUN associated with the migration source SMI-S enabled
storage system that was assigned to the External port.
For details about the specified values specified for parameters and syntax of
each CLI command of Device Manager and Tiered Storage Manager to be used in tasks, see the  Hitachi Command Suite CLI Reference Guide  and the
Tiered Storage Manager CLI Reference Guide .
Procedure 1. Register the migration target storage system and the migration source
SMI-S enabled storage system in Hitachi Command Suite. Use the GUI to register the storage systems, or run the  AddStorageArray command
(Device Manager CLI).Note:  Registering or updating a storage system might take a long time
depending on its configuration or scale, so you need to perform these
operations systematically.Note:  If the migration target or source storage system has already been
registered, you need to update the migration target or source storage
system in order to obtain the latest configuration information.
2. Stop the hosts to which the storage systems are connected.
Observe that the following steps (3 - 4) need to be performed while the
host is stopped, so you need a plan that considers host operations.
3. Map the volumes of the migration source SMI-S enabled storage system
to the migration target storage system as external volumes.
Use the GUI to map the volumes or run the  AddExternalArrayGroup
command (Device Manager CLI).
4. Allocate the external volumes mapped to the migration target storage
system to the host.
Use the GUI to allocate the volumes, or run the  AddLun command
(Device Manager CLI).
Optimizing storage performance347Hitachi Command Suite User Guide 
						

							5.Start the host, and then change the target that the host (applications)
accesses from the migration source storage system to the migration target storage system.
Perform this step by using the configuration tools of the host while
applications are stopped.
6. Migrate data in the external volumes (migration source) to an internal
volume of the migration target storage system (data migration). Use the
GUI to migrate data, or run the following commands (Tiered Storage Manager CLI):
• CreateStorageTier  command
• CreateMigrationGroup  command
• CreateMigrationPlan  command
• CreateMigrationTask  command
• ExecuteTask  command
7. Unmap the external volumes (migration source) from the migration
target storage system.
Use the GUI to unmap (unvirtualize) the volumes or run the
DeleteExternalArrayGroup  command (Device Manager CLI).
8. Delete the migration source SMI-S enabled storage system from the
management targets of Hitachi Command Suite.
Use the GUI to delete a storage system, or run the  DeleteStorageArray
command in the Device Manager CLI.
Result
The data of the migration source SMI-S enabled storage system can now be
used as an internal volume of the migration target storage system. The migration source SMI-S enabled storage system can be removed.
Related references •
Operations available to SMI-S enabled storage systems  on page 60
348Optimizing storage performanceHitachi Command Suite User Guide 
						

							9
Grouping resources
This module describes how to group logical groups and storage tiers
(resources).
□
Managing logical groups
□
Managing storage tiers
Grouping resources349Hitachi Command Suite User Guide 
						

							Managing logical groupsThis module describes how to manage the two supported logical group types:public and private. Public and private logical groups are listed in the
navigation pane (Resources > Logical Groups) under the Public Logical
Groups root folder and the Private Logical Groups root folder, respectively.
About logical groups A logical group  is a mechanism for the grouping of storage resources (hosts
and volumes) by storage administrators, and can be organized according to
business operations, geographic locations, or other organizational divisions.
Using grouped storage resources as logical groups allows you to:
• Create summary reports that indicate current resource use in a storage environment by organization.
You can create logical groups that generate usage summary reports for
each organization that uses storage, if you manage an entire system.
• Monitor volumes and perform storage system operations by grouping together managed resources (hosts and volumes).
You can categorize volumes according to the organizations that use the
storage, if you manage a part of a system. Grouping and categorizing volumes makes finding volumes easier and allows you to perform daily
operations for volume resources.
You can add multiple hosts or volumes to a logical group at one time by
specifying a range of IP addresses, or by specifying multiple items, such as operating system type and drive type. The same hosts or volumes can be
registered to multiple logical groups.
When you need to, you can add or remove hosts and volumes from a logical
group, or change the hierarchy, or structure, of existing logical group folders, depending on the logical group type. Any volumes allocated to a host in a
logical group are automatically assigned to the logical group. Note that child
groups cannot be created below host or volume groups (child groups can be
created only below folders).
Hitachi Command Suite supports two types of logical groups: public and private. A key distinction between public and private logical groups is the root
location in the work area for the user, and these two logical group types have
the following basic structure in the navigation pane:
Public logical groups
• Logical group folders 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.
350Grouping resourcesHitachi Command Suite User Guide