Hitachi Command Suite 8 User Guide

							Related concepts
•
About allocating volumes  on page 188
•
About managing WWNs by using nicknames  on page 366
•
About LUN path management  on page 223
Related tasks
•
Creating clustered-host storage  on page 211
•
Allocating volumes to selected hosts  on page 193
Creating clustered-host storage You create clustered-host storage by allocating volumes to a new host within
an existing host group (also known as a host cluster).
Creating clustered-host storage involves allocating new or additional volumes
to a new host that has been added to an existing host group, setting new LUN paths to the new host, and adding the WWN of the new host to an existing host group.
Prerequisites
• Discover (and register) new hosts.
• Allocate volumes to existing hosts.• Verify that the host connections are Fibre Channel or Fibre Channel over Ethernet (FCoE)
Provisioning storage211Hitachi Command Suite User Guide 
						

							Procedure1. On the  Resources  tab, click Hosts, and select  All Hosts to list the
hosts by OS type in the Application pane.
2. From the list of hosts, select one or more hosts (or from the list of
volumes, select one or more volumes allocated to these hosts).
3. Click  More Actions , and select Define Clustered-Host Storage .
4. Select secondary hosts to add to the cluster:
• To add one host, select the host name in the  Select a host/file
server  list.
• To add multiple hosts, click  Select Hosts/File Servers, highlight
each host name, and click  Add.
5. From the  Selected Storage System  list, select the storage system to
associate with the selected host.
If two or more storage systems are allocated to the selected host, select
only one storage system.
6. In the  Add WWN  list, select the WWN of the new host to add to an
available host group.
View the host groups to which the new host can be added in theAvailable Host Groups  list.
7. In the  Available Host Groups  list, select a host group, and click  Add.
You can see the volumes that are associated with the selected host group in  A list of affected volumes , and also verify the added LUN paths for
each entry in the  Available LUN Path  list.Note: To add more new hosts and associated WWNs, repeat steps 4
through 7 as needed. If you need to modify host information, expand the Host Group and LUN Settings  to set host group information.
8.Click  Show Plan  and confirm that the information in the plan summary
is correct.
If changes are required, click  Back.
9. (Optional) Update the task name and provide a description.
10. (Optional) Expand  Schedule to specify the task schedule.
You can schedule the task to run immediately or later. The default setting
is  Now . If scheduled for  Now, select  View task status  to monitor the
task after it is submitted.
11. Click Submit .
If the task is scheduled to run immediately, the task begins.
12. You can check the progress and the result of the task on the  Tasks &
Alerts  tab.
Click on the task name to view details of the task.
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							Result
The new host is added to the designated host group, which created clustered- host storage by virtue of the following:
• LUN paths are created between new host and host group • WWN of new host is added to host groupTip:  You can also use the Edit LUN Paths dialog box to confirm that the WWN
of the new host is successfully added to the host group.
Related concepts
•
About clustered-host storage  on page 210
Related tasks
•
Allocating volumes to selected hosts  on page 193
•
Editing a WWN nickname  on page 368
•
Editing LUN paths  on page 224
About unallocating volumes You can unallocate volumes from hosts or file servers.
You can also unallocate global-active device paired volumes from hosts.
Unallocated volumes can be: • Re-allocated (with existing data) to a host or file server that can recognize the existing data (file system).
• Used for other storage requirements.
Unallocating a volume deletes all LUN paths that connect the volumes to the
host or file server.
Unallocating volumes does not delete existing volume data by default.
However, during unallocation there is an option to delete the volume (volume
data is lost) and return it to unused capacity, or you can delete the
unallocated volume later. As a precaution, to retain volume data, back up
volumes before unallocating them (for example, for volumes to be re-
allocated to a new host).
Related concepts
•
About removing hosts and releasing associated resources  on page 73
Related tasks
•
Unallocating volumes from hosts  on page 214
•
Unallocating volumes from file servers  on page 215
Related references
•
Unallocate volumes dialog box  on page 216
Provisioning storage213Hitachi Command Suite User Guide 
						

							Unallocating volumes from hostsUnallocated volumes can be re-allocated (with existing data) or can be madeavailable for other storage requirements.
Prerequisites
• Identify the name of the target host, and the volumes to unallocate.
• If necessary, backup data on the target volumes. • Unmount all allocated volumes that you plan to unallocate. An IT administrator might have to perform this task.
Procedure 1. On the  Resources  tab you can unallocate volumes from several
locations:
• From  General Tasks , select Unallocate Volumes .
• Select a host OS, select one or more target hosts, and click Unallocate Volumes .
• Select a host OS, click a target host name to display volumes, select one or more volumes, and click  Unallocate Volumes.
• Search for a host, click the host name and go directly to the volume list, and click  Unallocate Volumes
The Unallocate Volumes dialog is launched.
2. Select the host and host volumes to unallocate. Note that if the host and
host volumes were selected prior to launching the Unallocate Volumes dialog box, you will go directly to the plan summary mentioned in thenext step.
3. Click  Show Plan  and confirm that the information in the plan summary
is correct. If changes are required, click  Back.
4. (Optional) Update the task name and provide a description.
5. (Optional) Expand  Schedule to specify the task schedule.
You can schedule the task to run immediately or later. The default setting
is  Now . If the task is scheduled to run immediately, you can select  View
task status  to monitor the task after it is submitted.
6. Click  Submit.
If the task is scheduled to run immediately, the process begins.
7. (Optional) Check the progress and result of the task on the  Tasks &
Alerts  tab. Click the task name to view details of the task.
Result
Unallocated volumes are added back to the storage system Open-Unallocated
volume list.
214Provisioning storageHitachi Command Suite User Guide 
						

							Related concepts
•
About unallocating volumes  on page 213
Related tasks
•
Shredding volume data  on page 144
•
Deleting unallocated volumes  on page 146
Related references
•
Unallocate volumes dialog box  on page 216
Unallocating volumes from file servers Unallocated volumes can be re-allocated (with existing data) or can be made
available for other storage requirements.
Prerequisites
• Identify the name of the target cluster or file server, and the volumes to unallocate.
• If necessary, backup data on the target volumes. • Unmount all allocated volumes that you plan to unallocate. An IT administrator might have to perform this task.
Procedure 1. On the  Resources  tab, select  File Servers , then select All File
Servers .
• From the Servers/Clusters list, select the row of the target cluster or file server (only one row can be selected), and then click  Unallocate
Volumes .
• To unallocate individual volumes, select the target cluster or file server in the tree view, and then select the target volumes from the  System
Drives  tab for Hitachi NAS Platform, or the  Volumes tab for Hitachi
NAS Platform F or Hitachi Data Ingestor, and then click  Unallocate
Volumes .
2. Specify the appropriate settings for creating a plan.
3. Verify the plan and click  Submit.
4. In the task list, confirm that the task is completed.
Tip:  For Hitachi NAS Platform family, for reasons such as node deletion,
if you want to unallocate volumes from individual file server nodes that
are in clusters, click the link of the cluster name and select the  Physical
View  tab. From the list, select the row of the target file server (node)
and click the  Unallocate Volumes  button.Provisioning storage215Hitachi Command Suite User Guide 
						

							Related concepts
•
About unallocating volumes  on page 213
Related tasks
•
Shredding volume data  on page 144
•
Deleting unallocated volumes  on page 146
Related references
•
Unallocate volumes dialog box  on page 216
Unallocate volumes dialog box Successfully unallocated volumes are placed in the Open-Unallocated folderof the storage system from which they originated. Unallocated volumes can be reallocated to another host, with data intact.
Volumes can be deleted using this dialog box and returned to unused
capacity if eligible, or previously unallocated volumes can be reallocated to
another host.
When you enter the minimum required information in this dialog box, the
Show Plan button activates to allow you to review the plan. 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 5-6  Unallocate volumes dialog box
FieldSubfieldDescriptionHost-Note: It is recommended that volumes be unmounted from
hosts prior to unallocating the volumes.
The unallocate volumes dialog box works slightly differently
depending on where you launch the dialog box, for
example:
If you select Unallocate Volumes from General Tasks, you
will be prompted to select a host. Selecting the host will
display the host volumes. Select one or more volumes and
click Show Plan to display the fields and options below.
If you select Unallocate Volumes by selecting a host row
from the Hosts panel, you will not be prompted to select a
host. Host volumes are displayed. Select one or more
volumes and click Show Plan to display the fields and options below.216Provisioning storageHitachi Command Suite User Guide 
						

							FieldSubfieldDescriptionIf you click the host name to list host volumes, you canidentify and select volumes using details such as host group,
or volume attribute. Select volumes and click Unallocate
Volumes to display the fields and options below. In this case, Show Plan is not displayed because the host volumes
were known prior to launching the dialog box.Unallocate global-
active device pair
simultaneously-When a global-active device primary (P-VOL) or secondary (S-VOL) volume is selected to be unallocated and this
checkbox is selected, the global-active device pair will be
simultaneously unallocated.Plan Summary-For one or more volumes the volume ID, storage system,
volume type, drive type, and host for each volume is
displayed.
When a global-active device paired volume is selected, Copy
Info(P-VOL) and Copy Info(S-VOL) are displayed.>> Plan DetailsVolume
InformationThere is a Deletable column with a yes or no value to
indicate whether the volume can be deleted. For example,
volume conditions preventing deletion include:
• The volume is in use by another host
• The volume is a command device
• The volume is a pair volumeLUN Path
InformationFor one or more volumes the volume ID, storage system,
storage port, port type, host port, LU number, host group, host mode, and 'other options' for each volume is displayed.
This provides complete storage and host LUN path
information.global-active
device pair
informationWhen unallocating global-active device pairs, copy pair
names, pair management servers, and copy groups appear
as information of the pairs that are released at the same
time that global-active device pair volumes are unallocated.Pair
Management
Server
InformationWhen unallocating global-active device pairs, information such as the names and instance IDs of the copy groups that
are deleted at the same time that pairs are released
appears.Virtual LDEV ID
informationWhen unallocating volumes such as global-active device S-
VOLs, virtual LDEV ID information is displayed.>> Advanced
OptionsHost Group
DeleteIf you select all volumes for a host group, a host group
deletion option is displayed. Deleting a host group is only done under very specific circumstances, such as the target
server having been replaced with a new server. Do not
select this option unless you know the exact status of the
target server and the server volumes (data), and are confident this option is appropriate.Only unallocate
volumesThis default selection unallocates volumes only without
deleting volume data or the volume. Unallocated volumes
can be re-allocated to another host, for example a newer
and faster server.Release LUSE
volumesA LUSE volume is created by aggregating (combining)
multiple smaller LDEVs into a larger volume that is allocated
to a host. If one or more LUSE volumes are selected, this
option is activated and can be selected to un-allocate LUSEProvisioning storage217Hitachi Command Suite User Guide 
						

							FieldSubfieldDescriptionvolumes and release the component LDEVs of the LUSE
volume.Delete volumesFor volumes where Plan Details > Volume Information
indicates the volume can be deleted (Deletable=yes),
eligible volumes will be deleted and returned to unused
capacity. To delete a selected volume when unallocating
volumes: select Delete Volumes, and click Submit.Delete virtual
ID information
assigned to
volumesSelect Delete Virtual Information from volumes to delete
virtual ID information. This option should only be used by an
administrator knowledgeable about the status of migrated volumes with virtual ID information, or the status of global-
active device pairs.LDEV IDs are
moved to the
resource pool of
the default
virtual storage
machineSelect LDEV IDs are moved to the resource pool of the
default virtual storage machine to release LDEV IDs.
Related concepts
•
About unallocating volumes  on page 213
•
About releasing a LUSE volume  on page 148
Related tasks
•
Unallocating volumes from hosts  on page 214
•
Unallocating volumes from file servers  on page 215
•
Unallocating global-active device pairs  on page 301
•
Unallocating individual global-active device volumes  on page 302
Configuring Fibre Channel ports Enable LUN security and configure data transfer speeds, port addresses, and
fabric switch settings.
Enabling LUN security on a port To protect mission-critical data in your storage system, you can enable LUN
security on ports to secure LUs from illegal access.
By default, LUN security is disabled on each port. When registering hosts in
multiple host groups, you must enable LUN security (set the switch to
enabled). When you change LUN security from disabled to enabled, you must
specify the WWN of the host bus adapter.
Caution:  Although you can enable LUN security on a port when host I/O is in
progress, I/O is rejected with a security guard after enabling. To prevent this,
enable LUN security on each port when configuring your storage system.218Provisioning storageHitachi Command Suite User Guide 
						

							Procedure1. On the  Resources  tab, click Storage Systems , and then expand  All
Storage Systems  and the target storage system.
2. Choose one of the following options.
• For Virtual Storage Platform G1000 storage systems: Click  Ports/Host Groups .
• For other available storage systems: From the  Actions list in the application pane, select  Element
Manager . Refer to the documentation for the native management tool
for your storage system.
3. Select the  Ports tab.
4. Select the desired port.
5. Select  Edit Ports .
The  Edit Ports  window opens.
6. Select the  Port Security  check box, and then select  Enable.
7. Click  Finish . A message appears, confirming whether to switch the LUN
security.
8. Click  OK to open the  Confirm window.
9. In the  Confirm  window, confirm the settings.
10. Enter a unique  Task Name or accept the default, and then click  Apply.
If  Go to tasks window for status  is checked, the Tasks window
opens.
Related tasks •
Disabling LUN security on a port  on page 219
•
Setting the data transfer speed on a Fibre Channel port  on page 220
•
Setting the Fibre Channel port address  on page 221
•
Setting the fabric switch  on page 222
Disabling LUN security on a port Use this procedure to disable LUN security on a port.
Caution: Do not disable LUN security on a port when host I/O is in progress.
Procedure
1. On the  Resources  tab, click Storage Systems , and then expand  All
Storage Systems  and the target storage system.
2. Choose one of the following options.
• For Virtual Storage Platform G1000 storage systems: Click  Ports/Host Groups .
• For other available storage systems:
Provisioning storage219Hitachi Command Suite User Guide 
						

							From the Actions list in the application pane, select  Element
Manager . Refer to the documentation for the native management tool
for your storage system.
3. Select the  Ports tab.
4. Select the desired port.
5. Select  Edit Ports . The Edit Ports  window opens.
6. Select the  Port Security  check box, and then select  Disable.
7. Click  Finish . If disabling LUN security, a message appears, indicating
that only host group 0 (the group whose number is 00) is to be enabled.
Clicking  OK opens the  Confirm window.
8. In the  Confirm  window, confirm the settings.
9. Enter a unique  Task Name or accept the default, and then click  Apply.
If  Go to tasks window for status  is checked, the Tasks window
opens.
Related tasks •
Enabling LUN security on a port  on page 218
Setting the data transfer speed on a Fibre Channel port As system operation continues, you might notice that a large amount of data
is transferred at some ports, but a small amount of data is transferred at other ports. You can optimize system performance on a Fibre Channel port bysetting a faster data transfer speed on ports where a larger amount of data is
transferred, and setting a slower data transfer speed on ports where a
smaller amount of data is transferred.
Note:  In Fibre Channel over Ethernet (FCoE) networks, the port speed is
fixed at 10 Gbps and cannot be changed.
Procedure
1. On the  Resources  tab, click Storage Systems , and then expand  All
Storage Systems  and the target storage system.
2. Choose one of the following options.
• For Virtual Storage Platform G1000 storage systems: Click  Ports/Host Groups .
• For other available storage systems: From the  Actions list in the application pane, select  Element
Manager . Refer to the documentation for the native management tool
for your storage system.
3. In the  Ports/Host Groups  window, select the Ports tab.
4. Select the desired port.
5. Click  Edit Ports .
220Provisioning storageHitachi Command Suite User Guide