Hitachi Command Suite 8 User Guide

							6.In the  Edit Ports  window, select the  Port Speed check box, and then
select the desired port speed (select the speed in the unit of Gbps
(Gigabit per second).
If  Auto  is selected, the storage system automatically sets the speed to
2, 4, 8, or 16 Gbps.Note:  When setting speed on a Fibre Channel port:
• If the HBAs (host bus adapters) and switches support 2 Gbps, use the fixed speed of 2 Gbps for the CHF (channel adapter for Fibre Channel)
port speed. If they support 4, 8, or 16 Gbps, use 4, 8, or 16 Gbps for
the CHF port speed, respectively.
• If the  Auto Negotiation  setting is required, some links might not be
up when the server is restarted. Check the channel lamp. If it is flashing, disconnect the cable, and then reconnect it to recover fromthe link-down state.
• If the CHF port speed is set to  Auto, some equipment might not be
able to transfer data at the maximum speed.
• When you start a storage system, HBA, or switch, check the host speed appearing in the Port list. If the transfer speed is different from
the maximum speed, select the maximum speed from the list on the
right, or disconnect, and then reconnect the cable.
7. Click  Finish .
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 •
Setting the Fibre Channel port address  on page 221
•
Enabling LUN security on a port  on page 218
Setting the Fibre Channel port address When configuring your storage system, set addresses for Fibre Channel ports.When addressing Fibre Channel ports, use AL-PA (arbitrated-loop physical
address) or loop IDs as the addresses.
Note:  In FCoE networks, you do not need to set the address of a fibre
channel port.
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.
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							• 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. Select  Edit Ports .
6. In the  Edit Ports  window, select the  Address (Loop ID)  check box,
and then select the address.
7. Click  Finish .
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
•
Setting the data transfer speed on a Fibre Channel port  on page 220
•
Enabling LUN security on a port  on page 218
Setting the fabric switch When you configure your storage system, specify whether the hosts and thestorage system are connected via a fabric switch.
Note:  In FCoE networks, Fabric is fixed to ON. Therefore, you do not need to
set Fabric.
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 .
6. Select a check box of  Fabric, and select  ON if you set the fabric switch.
If you do not set the fabric switch, select  OFF.
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							7.Click  Finish .
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
Managing LUN paths This module describes path management; how to specify LUN paths, edithost mode and host mode options, and how to specify LUN paths after replacing or exchanging a host bus adapter.
About LUN path management When you allocate a volume to a host, Hitachi Command Suite allows you toassign 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 or iSCSI targets.
After volumes have been allocated to a host, you can edit existing LUN pathinformation to add new paths or delete existing paths from a list of allocated
volumes in the storage systems tree, hosts tree, logical groups tree, or file
servers tree, and from a list of volumes returned from a search.
To set a new LUN path between a specific volume and a host or file server,
perform the allocate volume operation, and to delete all the LUN path
settings between a specific volume and a host or file server, perform the
unallocate volume operation. In contrast, in LUN path editing, you can
change the number of LUN paths and the connection-destination ports according to operations. In particular, edit LUN paths to achieve thefollowing:
• Improvement of I/O performance If the usage frequency of an application increases, you can add LUN pathsto increase the data transmission speed and improve the I/O performance.
If the usage frequency decreases, you can delete the LUN paths.
• Enhancements to system redundancy To prepare for an error in storage systems or host ports, you can enhance
the system redundancy by configuring multiple LUN paths, with each using
a different port.
• Response to failures When a port is disabled because of an error, you can configure LUN paths
that temporarily use alternate ports to continue system operation.
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							Because allocated volumes belong to a specific host group or iSCSI target,the same target host port is set for all volumes in any given host group or
iSCSI target. Therefore, when adding or deleting a host port for one or more
volumes, you must select all of the volumes that belong to that host group or
iSCSI target to maintain consistent LUN path assignments for all volumes.
When a FC or FCoE connection is used, you can change host modes and host
mode options depending on the situation, for example when an application is
added to the host and the operating system is upgraded.
You can add or exchange HBAs to improve performance and throughput requirements. To edit LUN paths when replacing a failed HBA or performing a
planned HBA replacement, use any of the following options, depending on
your task purpose:
• Add HBA • Exchange HBA
• Remove HBA
You can use the LUN paths that were set for the old HBA for the new HBA,
and delete LUN paths set for an HBA that is no longer necessary. You can also
edit LUN paths for multiple HBAs collectively.
Related tasks
•
Editing LUN paths  on page 224
•
Editing the host mode and host mode options  on page 226
•
Editing LUN paths when exchanging a failed HBA  on page 227
•
Editing LUN paths when adding or exchanging an HBA  on page 228
•
Removing LUN paths after adding an HBA  on page 230
Editing LUN paths You can manage the LUN paths between storage systems and hosts byadding or deleting them as needed.
You manage LUN paths on your storage system by controlling the connections between the storage systems and hosts. This allows you to
better adapt to changing storage system and network conditions.
As conditions change, you can create new paths or delete selected paths on aLUN path basis that are established between multiple host bus adapters
(HBA) of a host within a host group. For example, some HBAs may become
unnecessary when the related applications are unneeded or infrequently used, and you can delete selected LUN paths for such cases.
Prerequisites
Allocate volumes to the existing hosts.
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							Procedure1. On the  Resources  tab, expand the tree for storage systems, hosts, file
servers, or logical groups to display volumes.
2. Select one or more volumes for which you want to edit LUN paths. If
selecting multiple volumes, they must belong to the same configuration
host group.
3. In the selected volume, click  More Actions, and select Edit LUN Paths .
4. In the  Edit LUN Paths  dialog box, use the topographical graph or
selection table view to map storage ports to host ports. In both views, you can use links to view WWN nickname information to confirm the
target HBA.Tip:  When editing the LUN path of a global-active device paired volume,
you can specify the settings while referencing the LUN paths of the other
volume.
a. In  Topological Graph  (or graph view), click on a storage port row to
add it to the  LUN Path Editor  panel. Connect the line to the target
HBA. Another line is displayed, which you can connect to another HBA
or discard with a click.
b. In  Selection Table  (or table view), first select a storage port, then
select a host port row, and click  Add to move the mapping to
Selected host Ports  list.
If you add an incorrect mapping and want to delete it, click the connector
line in graph view, or use the remove button in table view, or click
Cancel  to close the dialog box and start over.
5. To delete an existing path, which is indicated by a green line in graph
view, or by the 'In Use' state in the Selected host ports list in  Selection
Table , do the following:
Tip: To delete all the LUN paths between a specific volume and a host,
file server so that there are no paths left, delete LUN path settings by unallocating the volumes.
a. In graph view, click the green line. The line will now be gray and thin
which indicates that the LUN path is removed.
b. In table view, select the mapping row and click  Remove to change
the state from 'In Use' to 'Remove.'
6. Change any other required settings.
7. Click  Show Plan  and confirm that the information in the plan summary
is correct.
Optionally, update the task name and provide a description.
8. Expand  Schedule  to specify the task schedule.
The task can be run immediately or scheduled for later. The default
setting is  Now.
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							9.Click  Submit .
If you selected  Now, the editing LUN path process begins
10. You can check the progress and result of the editing LUN paths task on
the  Tasks & Alerts  tab.
Verify the results for each task by viewing the details of the task.
Result
The LUN path settings you edited are displayed correctly.
Related concepts
•
About LUN path management  on page 223
Related tasks
•
Allocating global-active device pairs  on page 291
•
Allocating global-active device pairs using existing volumes  on page 293
•
Adding redundancy to open-allocated volumes  on page 295
Editing the host mode and host mode options Manage your host group information by editing the host mode and host mode
options after the volumes have been allocated.
You can edit host group information (host group name, host mode, and host
mode options) for an existing host group by editing its LUN paths when a host, to which volumes are allocated, has been added to a host cluster. You
can verify host mode option IDs when host group information is being edited
or when new volumes are allocated.
Tip:  In addition to when you are editing LUN paths, you can also edit host
group information when allocating volumes, allocating like volumes, and
defining clustered-host storage.
Prerequisites
• Allocate volumes to hosts.
• Verify that the host connections are Fibre Channel or Fibre Channel over Ethernet (FCoE).
Procedure 1. On the  Resources  tab, choose one of the following options to expand
the tree for storage systems, hosts, file servers, or logical groups to
display volumes.
• Storage Systems > All Storage Systems
• Hosts > All Hosts
• File Servers > All File Servers
• Logical Groups > Public Logical Groups  or Private Logical
Groups
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							2.Select a volume that belongs to the target host group (if selecting
multiple volumes, they must belong to the same configuration host
group).
3. Click  More Actions , and select Edit LUN Paths .
4. In the  Edit LUN Paths  dialog box, click  Host Group and LUN Settings ,
and modify the host group name, host mode, or host mode options as needed.
5. Click  Show Plan  and confirm that the information in the plan summary
is correct.
If changes are required, click  Back.
6. (Optional) Update the task name and provide a description.
7. (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.
8. Click  Submit .
If the task is scheduled to run immediately, the task begins.
9. 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.Tip:  Click  Host Group and LUN Settings  in the Edit LUN Paths  dialog
box to check that all edited host mode or host mode option selections are correct.
Related concepts
•
About changing host settings and information  on page 68
Related tasks
•
Editing LUN paths  on page 224
•
Creating clustered-host storage  on page 211
Editing LUN paths when exchanging a failed HBA Exchange a failed HBA with a new HBA and restore the LUN path settings tothe new HBA.
Prerequisites
• Identify the new WWN for the HBA that is being added
• Identify the WWN from which to model paths
• Verify that the new HBA is physically connected.
Procedure 1. On the  Resources  tab, select  Hosts.
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							2.After selecting the target operating system, select the target host row,
and click  More Actions > Exchange HBAs .
3. Enter the  New WWN  or select a WWN from the table.
4. Enter the  WWN from which to model paths  or select a WWN from the
list.
The selected WWN will be removed from the host.
5. Click  Add.
6. In the  WWN Pairs  list, verify that the listed HBA WWN combination
before and after the replacement are paired correctly.Tip:
• If the WWN information is updated when the host is refreshed, the target WWN might not be displayed in the list. In this case, you need
to manually enter the WWN of the failed HBA.
• To edit a WWN nickname from list of  WWN Pairs, click Edit WWN
Nicknames .
7.Click  Show Plan  and confirm that the information in the plan summary
is correct. If changes are required, click  Back.
8. (Optional) Update the task name and provide a description.
9. (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.
10. Click Submit.
If the task is scheduled to run immediately, the process begins.
11. (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
When the task completes, the LUN path settings are restored to the new HBA
and the original WWN is removed from the host.
Related concepts
•
About LUN path management  on page 223
•
About managing WWNs by using nicknames  on page 366
Related tasks
•
Editing a WWN nickname  on page 368
Editing LUN paths when adding or exchanging an HBA You can add or exchange HBAs to improve performance and throughput
requirements. When adding an HBA, specify the WWN of the new HBA and then select a WWN of an existing HBA from which to model paths.
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							Prerequisites
• Identify the new WWN for the HBA that is being added
• Identify the WWN from which to model paths
• Verify that the new HBA is physically connected.
Procedure 1. On the  Resources  tab, select  Hosts.
2. After selecting the target operating system, select the target host row,
and click  More Actions > Add HBAs .
3. Enter the  New WWN  or select a WWN from the list.
4. Enter the  WWN from which to model paths  or select a WWN from the
list.
5. Click  Add.
6. In the WWN Pairs list, verify that the listed HBA WWN combination before
and after the replacement are paired correctly.Tip:
• If the WWN information is updated when the host is refreshed, the target WWN might not be displayed in the list. In this case, you need
to manually enter the WWN of the HBA you are adding.
• To edit a WWN nickname from list of  WWN Pairs, click Edit WWN
Nicknames .
7.Click  Show Plan  and confirm that the information in the plan summary
is correct. If changes are required, click  Back.
8. (Optional) Update the task name and provide a description.
9. (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.
10. Click Submit.
If the task is scheduled to run immediately, the process begins.
11. (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
When the task completes, the new WWN is added and related LUN path
settings are restored to the host.
Postrequisites If you are performing a planned HBA replacement, remove any unnecessary
WWNs and LUN path settings.
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							Related concepts
•
About LUN path management  on page 223
Related tasks
•
Removing LUN paths after adding an HBA  on page 230
•
Editing a WWN nickname  on page 368
Removing LUN paths after adding an HBA Remove a WWN from the host and also delete the related LUN paths.
Prerequisites
• Identify the WWN of the HBA you are removing
Procedure 1. On the  Resources  tab, select  Hosts.
2. After selecting the target operating system, select the target host row,
and click  More Actions > Remove HBAs .
3. Enter the  WWN to be removed from the host or select a WWN from the
list.
4. (Optional) Select the check box  Delete Host Group to delete the
selected host group. By default, the check box is clear.
5. Click  Show Plan  and confirm that the information in the plan summary
is correct. If changes are required, click  Back.
6. (Optional) Update the task name and provide a description.
7. (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.
8. Click  Submit.
If the task is scheduled to run immediately, the process begins.
9. (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
When the task completes, the WWN and related LUN path settings are removed from the host.
Related concepts
•
About LUN path management  on page 223
Related tasks
•
Editing LUN paths when adding or exchanging an HBA  on page 228
230Provisioning storageHitachi Command Suite User Guide