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LUN Configuration and Security Manager XP user guide for the XP10000/XP12000
•”Configuring LU paths in a Fibre Channel environment” on page 11
•”16-Port FC/CA CHIP product” on page 13
•”Host groups” on page 13
•”Host modes” on page 14
•”LUN Security” on page 15
•”RAID Manager command devices” on page 16
•”Fibre Channel port attributes” on page 17
•”LUN Manager operations” on page 19
•”Port Operations” on page 31
•”Operational restrictions” on page 34
• ”Volume Management for the XP10000/XP12000”
•”Volume Management (LU Size Expansion)” on page 37
•”Volume Size Configuration (VSC)” on page 38
•”LUSE operations” on page 48
•”VSC Operations” on page 53
•”Operational restrictions” on page 74
Intended audience
This guide is intended for customers and HP-authorized service providers with knowledge of the following:
• Disk array hardware and software
• Data processing and RAID storage subsystems and their basic functions
Prerequisites
Prerequisites for using this product include:
• Knowledge of HP StorageWorks XP disk arrays and storage systems
• Installation of the HP StorageWorks disk array(s)
• Installation of the license key for this product
Firmware versions
The recommended firmware versions, shown below, provide the optimal level of support for the features
provided with this product. Older firmware versions can be used; however, product features enabled with
newer firmware will not appear.
Table 1 Recommended and minimum firmware versions
XP disk arrayMinimumRecommended
XP1200050-04-31-00/0050-04-41-00/00 or later
XP1000050-04-31-00/0050-04-41-00/00 or later
LUN Configuration and Security Manager XP user guide for the XP10000/XP120007
Related documentation
In addition to this guide, please refer to other documents for this product:
• HP StorageWorks XP Remote Web Console User Guide. for XP12000/XP10000
• HP StorageWorks XP Disk/Cache Partition User Guide
• HP StorageWorks Snapshot XP User Guide
• HP StorageWorks LUN Security XP Extension User Guide
• HP StorageWorks External Storage XP User Guide
• You can find these documents at http://www.hp.com/support/rwc/manuals
Document conventions and symbols
Table 2 Document conventions
ConventionElement
Blue text: Table 1
Blue, underlined text:
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http://www.hp.com)
Bold text
Italic text
Monospace text
Monospace, italic text
Monospace, bold text
CAUTION: Indicates that failure to follow directions could result in damage to equipment or data.
Cross-reference links and e-mail addresses
Web site addresses
• Keys that are pressed
• Text typed into a GUI element, such as a box
• GUI elements that are clicked or selected, such as menu and list
items, buttons, and check boxes
Text emphasis
• File and directory names
• System output
• Code
• Commands, their arguments, and argument values
• Code variables
• Command variables
Emphasized monospace text
IMPORTANT: Provides clarifying information or specific instructions.
NOTE: Provides additional information.
TIP:Provides helpful hints and shortcuts.
HP technical support
Telephone numbers for worldwide technical support are listed on the HP web site:
http://www.hp.com/support/
Collect the following information before calling:
• Technical support registration number (if applicable)
8
.
• Product serial numbers
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• Applicable error messages
• Operating system type and revision level
• Detailed, specific questions
For continuous quality improvement, calls may be recorded or monitored.
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HP strongly recommends that customers register online using the Subscriber's choice web site:
http://www.hp.com/go/e-updates
Subscribing to this service provides you with e-mail updates on the latest product enhancements, newest
driver versions, and firmware documentation updates as well as instant access to numerous other product
resources.
After subscribing, locate your products by selecting Business support and then Storage under Product
Category.
Helpful web sites
For additional information, see the following HP web sites:
.
• http://www.hp.com
• http://www.hp.com/go/storage
• http://www.docs.hp.com
• http://www.hp.com/support/rwc/manuals
LUN Configuration and Security Manager XP user guide for the XP10000/XP120009
10
1LUN Manager for the XP10000/XP12000
You can connect XP arrays to open system and mainframe hosts using Fibre Channel. Use LUN Manager to
configure host groups, logical units (LUs), and Fibre Channel ports.
LU configuration overview
One of the important tasks in logical unit (LU) configuration is to define I/O paths from hosts to LUs. After
the paths are defined, the hosts can send commands and data to the LUs and can receive data from them.
LUN Manager can also configure security policies to protect LUs from unauthorized access.
Fibre Channel environment
In a Fibre Channel environment, you must configure the Fibre Channel ports on the disk array. With LUN
Manager, you can set addresses and speed, and specify topology for Fibre Channel ports.
Supported emulation types
LUN Manager supports the following device emulation types:
• OPEN-3, OPEN-9, OPEN-8 (XP128/XP1024 only), OPEN-E, OPEN-L, and OPEN-V for open systems
• 3390-3A/B/C and 3380-KA/B/C for mainframe systems
LU paths
After hosts and the disk array are physically connected by cables, switches, and so on, use LUN Manager
to establish paths between the hosts and LUs. These paths are called LU paths and they determine which
host can access which LU.
• Up to 256 LU paths can be defined for a host group in a Fibre Channel environment
• Up to 1,024 LU paths can be defined for a Fibre Channel port for the XP10000/XP12000 array
• Up to 256 host groups can be defined for a Fibre Channel port for the XP10000/XP12000 array
• Up to 65,536 host groups can be defined for one disk array (256 x 256)
• Up to 255 hosts can be included in all the host groups for one Fibre Channel port
Configuring LU paths in a Fibre Channel environment
Before defining LU paths, you must classify server hosts by host storage domains. For example, if Linux and
Windows
host type. When this is done, register the host bus adapters for each host type in the appropriate host
storage domain.
Host storage domains
A host storage domain can contain only hosts that are connected to the same port and cannot contain
hosts that are connected to different ports. For example, if two Windows hosts are connected to port 1A
and three Windows hosts are connected to port 1B, you cannot register all five Windows hosts in one host
storage domain. You must register the first two Windows hosts in one host storage domain and the
remaining three Windows hosts in another host storage domain.
After server hosts are classified into host storage domains, you must associate host storage domains to
logical volumes. In Figure 1, the host storage domain hg-lnx is associated with the logical volumes 00:00,
® hosts are connected to the disk array, you must create a separate host storage domain for each
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200011
00:01, and 00:02. LU paths are defined between the two hosts in the hg-lnx group and the three logical
volumes.
Por t
Host Storage Domain
Host Groups
Figure 1 LU paths configuration in a Fibre Channel environment
LUN Manager lets you define paths between a single server host and multiple LUs. In Figure 1, both hosts
in the hg-lnx host storage domain can access the three available LUs.
LUN Manager lets you define paths between multiple server hosts and a single LU. In Figure 1, the LU
identified as CU-LDEV 00:00 is accessible to the two hosts in the hg-lnx host storage domain.
In Figure 1, the LUs associated with the hg-lnx domain are addressed by numbers 0 to 2. The address
number of an LU is referred to as the logical unit number (LUN). When HP StorageWorks Continuous
Access XP and other optional features manipulate LUs, they use LUNs to specify the LUs to be manipulated.
You can add, change, and delete LU paths when the system is operational. For example, if new disks or
server hosts are added to your disk array, you can add new LU paths. If an existing server host is to be
replaced, you can delete the corresponding LU paths before replacing the host. You do not need to restart
the system when you add, change, and delete LU paths.
If a hardware failure (such as a CHA failure) occurs, there is a chance that some LU paths are disabled
and some I/O operations are stopped. To avoid this, the system administrator can define alternate LU
paths. If one LU path fails, the alternate path takes over the host I/O.
In a Fibre Channel environment, up to 1,024 LU paths can be defined for one host storage domain. Up to
1,024 LU paths can be defined for one port.
NOTE: You cannot define an LU path to LUN On Demand volumes or volumes reserved by Auto LUN XP.
• Up to 256 host storage domains can be created for one Fibre Channel port. Up to 57,344 host storage
domains can be created for one disk array. The maximum number of ports per subsystem is 224.
12LUN Manager for the XP10000/XP12000
• Up to 255 host groups can be created for one Fibre Channel port.
• You cannot define any LU path to journal volumes.
• You cannot define any LU path to pool volumes.
16-Port FC/CA CHIP product
Although there is not a significant performance gain compared to the 8-port FC/CA CHIP product, the
primary advantage of the 16-port FC/CA CHIP product is its increased FC connectivity (or port count).
High-speed mode is currently unavailable on the 16-port FC/CA CHIP product.
Odd/even LUN data path handling through the processor does not exist on the XP10000/XP12000.
There is no odd/even LUN mapping issue associated with this product. Each processor of the 16-port CHIP
product handles the data flow of two ports (eight total processors for 16 total ports = two ports per
processor).
For load balancing, the two ports serviced by a processor should be considered as one port. Although
volumes can be mapped to both ports handled by a processor, the I/O will go through one processor. For
redundancy and performance reasons, consider distributing the load across multiple CHIPs.
When deciding whether to map volumes to ports (LUN mapping) for host connectivity, after considering
load balancing across processors, there is no reason to not use all 16 ports immediately. After considering
load balancing among processors, there is no reason not to use both ports in the I/O path of one
processor or to use both ports in the I/O path of a processor.
Figure 2 16-Port CHIP pair labeling
Port numbering is as follows: Cluster 1 uses CL1-* and CL3-*, while Cluster 2 uses CL2-* and CL4-*,
where * is an alphabetical character designation of the port such as A, B, C, and so on. Ports A, for
example, CL1-A and CL3-A, share the same processor for I/O purposes.
Host groups
Begin by grouping server hosts into host groups. For example, if HP-UX and Windows hosts are connected
to the disk array, you must create a separate host group for each host type. When this is done, register the
hosts in their corresponding host groups. After hosts are classified into host groups, associate the host
groups with LUs.
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200013
In Figure 3, the host group hpux01 is associated with six LUs. LU paths are defined between the three hosts
in the hpux01 group (WWN_1, WWN_2, WWN_3) and the six logical units LUN00-LUN05.
Figure 3 Host group example 1
Figure 4 Host group example 2
LUN Manager can define paths between a single host and multiple LUs. In Figure 4, each of the three
hosts in the host group hpux01 can access the six LUs. LUN Manager can also define paths between
multiple hosts and a single LU.
Hosts can be members of only one host group for a given port. Host group definitions and members apply
only to the port that they are defined for.
Host modes
As part of registering hosts in host groups, you will be asked for the host mode. Use Table 3 to determine
the host mode.
Table 3 Host modes for host operating systems
Host modeHost operating system
00Red Hat Linux, IRIX, or Windows1 (Standard)
01 - 03Reserve
04DYNIX/ptx (Sequent)
14LUN Manager for the XP10000/XP12000
Table 3 Host modes for host operating systems (continued)
Host modeHost operating system
05OpenVMS
06Reserve
07Tru64
08HP-UX or Windows
09Solaris®
0ANetWare
0B Reserve
0C Windows
3, 4
0D, 0EReserve
0FAIX®
10 - 19Reserve
1A - 1FReserve
20 - 29Reserve
2A, 2BReserve
2CWindows Extension
2
3, 4
2D - 2FReserve
29 Solaris
1. For Windows with any FC HBAs when MSCS is not needed.
2. For Windows with D8602 FC HBAs with or without MSCS.
3. For Windows with Emulex or QLogic FC HBAs with or without MSCS.
4. If you register Windows server hosts in a host group, verify that the host mode of the host group is 0C: Windows or 2C: Windows Extension. If you are thinking about creating LUSE volumes, such as
expanded LUs, consider setting the host mode 2C: Windows Extension to the host group. If the host
mode is 0C: Windows and an LU path is defined for a volume, you cannot execute LUSE operations
on the volume without unmapping the volume first.
5. When registering Sun Cluster server hosts in the host group (Use this host mode both VERITAS Cluster
Server and Sun Cluster are used).
LUN Security
To protect data from unauthorized access, apply security policies to LUNs. LUN Manager can apply LUN
security to ports to safeguard LUs. If a port has the External attribute, you cannot apply LUN security to the
port.
If LUN security is applied, it limits which host can access which LUs. A host can only access LUs associated
with its host group. Hosts cannot access LUs associated with other host groups.
5
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200015
In Figure 5, the hosts in the hpux-G01 group can access LUN0 and LUN1 associated with the same host
group, but cannot access LUN0 and LUN1 in the winG02 host group. The hosts in hpuxG01 can only
access the two LUs, identified by 01:05 and 02:01; the hosts cannot access the LUs 02:00 and 02:02.
Figure 5 Host group example 3 (LUN security)
If LUN security is disabled, the hosts will not be able to access most of the LUs. Hosts will have access to
only those LUs defined in host group 0.
By default, LUN security is disabled on a port, so host group 0 is the only accessible host group reserved
for the port. Initially it contains no LUs or WWNs.
When security is disabled, only LUs defined in host group 0 are accessible to hosts connected to the port,
regardless of any WWNs that may be defined for a host group. After security is enabled, WWNs are
used, permitting or restricting access based on WWN.
If you have more than one host group defined on a port, you can locate host group 0 by disabling LUN
security from the port. When done, the tree display will “gray” out all host groups except host group 0.
RAID Manager command devices
To use RAID Manager commands for Business Copy XP and Continuous Access XP operations, you must
designate at least one LDEV on the disk array as a command device. A command device receives RAID
Manager commands entered from hosts. When you enter a RAID Manager command from a host, the
command is transferred to the target device via the command device.
If you want to restrict access to LUs and by RAID Manager, you can apply command device security in LUN
Manager.
Restrictions
You cannot use the following LDEVs as command devices:
• Volumes that do not have read/write access
• Volumes reserved by Auto LUN
• Continuous Access XP volumes
• BC volumes
• External LUs
• Flex Copy volumes
• Volumes on which VMA is set
• Virtual volumes
16LUN Manager for the XP10000/XP12000
If you want to use a LUSE volume as a command device, you must specify only the first LU as the command
device.
Fibre Channel port attributes
In Fibre Channel environments, you must configure and set addresses for the Fibre Channel ports. You can
enhance system performance by adjusting the data transfer speed at the Fibre Channel ports and
changing the channel adapter mode.
Fibre Channel topologies
Fibre Channel provides the following topologies:
• Fabric: Uses a fabric switch to connect a large number of devices. Each device has the full bandwidth
of 100 MB/sec.
• FC-AL (Fibre Channel-Arbitrated Loop): A shared-bandwidth topology that can connect up to 126
devices (AL ports).
• Point-to-point: A simple Fibre Channel topology in which two devices are connected directly.
When configuring the disk array, use LUN Manager to specify whether the hosts and the disk array are
connected by a fabric switch. Also, you must specify FC-AL or point-to-point in the LUN Manager pane. The
default is FC-AL.
If you are using a fabric switch, consult the switch’s documentation to learn whether FC-AL or point-to-point
should be used. Some fabric switches require that you specify point-to-point to get the system running.
Arbitrated loop physical addresses
You will need to set addresses for Fibre Channel ports. When addressing Fibre Channel ports, you can use
AL-PA (arbitrated loop physical address) or loop IDs as the addresses (see Table 4).
Table 4 AL-PA and loop IDs
AL-PALoop IDAL-PALoop IDAL-PALoop IDAL-PALoop ID
EF0B23272643A96
E81 B13371653997
E42 AE346E663698
E23AD356D673599
E14AC366C6834100
E05AB376B6933101
DC6AA386A7032102
DA7A939697131103
D98A74067722E104
D69A64166732D105
D510A54265742C106
D411A34363752B107
D3129F445C762A108
D2139E455A7729109
D1149D46597827110
CE159B47567926111
CD169848558025112
CC179749548123113
CB18905053821F114
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200017
Table 4 AL-PA and loop IDs (continued)
AL-PALoop IDAL-PALoop IDAL-PALoop IDAL-PALoop ID
CA198F5152831E115
C920885251841D116
C72184534E851B117
C62282544D8618118
C52381554C8717119
C32480564B8810120
BC257C574A890F121
BA267A58499008122
B9277959479104123
B6287660469202124
B5297561459301125
B43074624394
B33173633C95
Data transfer speed for Fibre Channel ports
As disk array operation continues, you may notice that a larger amount of data is transferred at some ports
and a smaller amount is transferred at other ports. To improve system performance, set a faster data
transfer speed for ports where a larger amount of data is transferred, and a slower data transfer speed for
ports where a smaller amount of data is transferred.
Standard, high-speed, and high-speed (2 port) modes
The channel adapter boards can operate in standard, high-speed, or high-speed (2-port) mode. Standard
mode is the default. If a channel adapter board satisfies certain conditions, you can set it to high-speed or
high-speed (2 port) mode to improve port performance.
NOTE: High-speed (2 port) mode is available only if firmware version 21.06.22 or later is installed on
the disk array.
High-speed mode can be applied to channel adapter boards that satisfy the following conditions:
• Only one port is planned for use.
• All ports take the same Fibre topology option (on or off).
• All ports take FC-AL as the Connection option.
• All ports use different port addresses and no matching addresses.
• All ports take the same port attribute (Initiator, RCU target, or Target).
If high-speed mode is applied to a channel adapter board, only one of the ports on the channel adapter
board can be used. This port can exclusively use channel processors and fibre optic processors (FOPs) that
would otherwise be reserved for the other ports. Balancing the workload on the processors can improve
system performance.
If high-speed (2 port) mode is applied to a four-port channel adapter board, two ports out of the four ports
cannot be used. The remaining two ports can exclusively use channel processors and FOPs that would
otherwise be reserved for the other two ports.
18LUN Manager for the XP10000/XP12000
Figure 6 shows an example of High Speed mode applied for one or two port clocks when the channel
adapter board has 8 ports. In case that the channel adapter board has 16 ports, you can also apply High
Speed mode in the same way though there are four port blocks.
Figure 6 Differences between high-speed and high-speed (2 port) modes
If High Speed mode is applied to the four ports in a port block, only two of the ports can be used for
connecting the host. These two ports can exclusively use channel processors and fibre optic processors
(FOPs) that would otherwise be reserved for the other two ports. Therefore, system performance improves.
By balancing workloads on processors, you can expect a greater improvement in system performance.
Before changing the configuration of a port that is being used, perform a backup operation. You cannot
switch between standard and high-speed while you are online to the hosts.
LUN Manager operations
This section includes procedures for performing the most common LUN Manager operations.
Starting LUN Manager
Click LUN Manager in the left pane. The LUN Manager pane appears.
The Command View XP or XP Remote Web Console main pane must be in Modify mode to use LUN
Manager. When the background color of the icon on the right of the pane is light yellow, Command View
XP or XP Remote Web Console is in Modify mode. When the background color is gray, Command View
XP or XP Remote Web Console is in View mode. If you click the grayed icon when the Unlocked icon is
displayed, the icon changes to light yellow and the mode changes to Modify. For more information about
changing modes, see the HP StorageWorks Command View XP User Guide for XP Disk Arrays or the HP StorageWorks XP Remote Web Console User Guide for XP12000/XP10000.
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200019
NOTE: Storage partition administrators can display information or operate only within the allocated SLPR.
For more information about SLPRs, see the HP StorageWorks XP Disk/Cache Partition User Guide.
Figure 7 LUN Manager pane
LUN Manager pane
The LUN Manager pane contains the tabs listed in Table 5.
Table 5 LUN Manager tabs
TabUse this tab to...
LUN ManagerDefine LU paths and apply LUN security for logical volumes.
PortConfigure ports by setting the topology and port addresses (”Starting Port
LU Path tree
The LU Path tree on the upper left of the LUN Manager tab lists Fibre Channel ports in the disk array and
hosts connected to them. Hosts are identified by nicknames and WWNs and are classified by host groups.
The LU Path tree may contain different folders: Fibre Channel, and so on.
Fibre Channel folder
The following Fibre Channel port icons are used in the LU Path tree:
Table 6 Fibre Channel port icons for LUN Manager operations
IconStatus
A short-wave port in standard mode without LUN security
A short-wave port in standard mode with LUN security
Operations” on page 31).
A long-wave port in standard mode without LUN security
A long-wave port in standard mode with LUN security
A short-wave port in high-speed mode without LUN security
20LUN Manager for the XP10000/XP12000
Table 6 Fibre Channel port icons for LUN Manager operations (continued)
IconStatus
LU Path table
On the right side of the LU Path tree is a table that displays LU Path information about the hosts in the tree.
The table contains the following information:
• LUN: LUNs (address numbers) assigned to LUs, which are LDEVs that can be accessed by hosts. If no
Table 7 LUN icons for LUN Manager operations
IconStatus
A short-wave port in high-speed mode with LUN security
A long-wave port in high-speed mode without LUN security
A long-wave port in high-speed mode with LUN security
paths are defined, the other table columns are blank.
The following icons indicate status.
A logical volume to which an LU path is defined
An expanded LU
A command device
A command device with security enabled
A LUN to which no LU path is defined
• CU:LDEV: The CU image and LDEV numbers. If an LDEV number ends with #, the logical volume is an
external LU. If an LDEV number ends with V, the logical volume is a virtual volume.
• Emulation: Emulation type for each LDEV
• Capacity: Size of each LDEV
• RAID: RAID level for each LDEV. If the logical volume is an external LU or virtual volume, the RAID
column displays a hyphen (-) instead of a RAID level.
• Paths: Number of alternate paths, if any
• VMA:Access Attribute: Access attribute of each LDEV. If a VMA is set on a logical volume, VMA:
appears at the beginning of the access attribute.
WWN name table
Figure 8 WWN name table
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200021
When you select a Fibre Channel port in the LU Path tree, the WWN table appears in the lower-left corner
of the LUN Manager pane. The WWN table lists host bus adapters that are connected to Fibre Channel
ports on the disk array.
The table contains the following information:
• A list of ports
• Host Group: Host groups are used to classify servers (hosts) connected to the disk array. You can create
• Name: Indicates nicknames for hosts. Nicknames can be specified in the LUN Manager pane.
• WWN: Each worldwide name represents one host.
LDEV table
The LDEV table in the lower-left corner of the LUN Manager tab lists LDEVs in the disk array. The LDEV
table does not list Auto LUN-reserved LDEVs.
The table contains the following information:
• A list of CU images
• LDEV: A combination of the CU image number and LDEV number that identifies an LDEV. If an LDEV
Table 8 LDEV icons for LUN Manager operations
host groups in the LUN Manager pane.
number ends with #, the logical volume is an external LU. If an LDEV number ends with V, the logical
volume is a virtual volume.
The following icons indicate LDEV status:
IconStatus
Normal logical volume
Expanded LU
A VSC volume
A command device
A command device with security enabled
• Emulation: Emulation type for each LDEV
• Capacity: Size of each LDEV
• RAID: RAID level for each LDEV. If the logical volume is an external LU or a virtual volume, the RAID
column displays a hyphen (-) instead of a RAID level.
• Parity Group: Displays names of parity groups. If a parity group name begins with E, the parity group
consists of one or more external LUs. If a group name begins with V, the group is a V-VOL group
consisting of one or more virtual volumes.
• Paths: The number of alternate paths, if any
• VMA:Access Attribute: Access attribute of each logical volume. If a VMA is set on a logical volume,
VMA: appears at the beginning of the access attribute.
Buttons
• Apply: Applies settings in the pane to the disk array
• Cancel: Cancels settings in the pane
• Add LU Path: Adds LUs to LU Path table
• Add WWN: Registers host bus adapters in a host group. Applies to Fibre Channel ports only.
22LUN Manager for the XP10000/XP12000
Defining LU paths
To configure a Fibre Channel environment, complete the following major steps:
1. Find the WWNs of the host bus adapters connected to the Fibre Channel ports.
2. Create host groups (”Creating host groups” on page 23).
3. Register hosts in host groups (”Registering hosts in host groups” on page 24).
4. Associate host groups to logical volumes (”Associating host groups to logical volumes” on page 26).
Creating host groups
You can connect multiple server hosts of different platforms to one port of your disk array. When
configuring the system, you must group server hosts connected to the disk array by host groups. For
example, if HP-UX and Windows hosts are connected to a port, create a host group for each host type.
1. Start LUN Manager, and display the LUN Manager pane (Figure 7).
2. In the LU Path tree, locate the port and verify that LUN security is enabled.
NOTE: If the port icon has a key (), LUN security is enabled.
If LUN security is not enabled, right-click the port and select Disable->Enable in the shortcut menu.
3. After LUN security is enabled, right-click the port in the LU Path tree and select Add New Host Group.
The Add New Host Group dialog box appears.
Figure 9 Add New Host Group pane
4. In the Group Name box, enter the host group name.
NOTE: It is convenient to name each host group after the host platform. For example, if you are
creating a host group for Windows NT
Host group names are case sensitive and can have up to 32 characters.
5. In the Host Mode list, select a host mode. Host groups on the same port can have different host modes.
6. If necessary, select Option, and select the host mode options. For detailed information about host mode
options, see Table 9 on page 24.
NOTE: After you select Option, the pane expands to display check boxes. The check boxes are
numbered sequentially from left to right. The left-most check box on the upper row is #0, and the
check box immediately to the right is #1, and so on. The numbers indicate option numbers; select
check box #0 to select option #0.
7. Click OK. The host group name and the host mode appear in blue in the LU Path tree.
8. In the LUN Manager main pane, click Apply. A confirmation message appears.
® hosts, the host group name could be WNT or WinNT.
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200023
9. Click OK. The settings are applied to the disk array.
The next step is to register hosts to the appropriate host group.
Table 9 Host mode options
No.Host Mode optionWhen to select option
2VERITAS Database
Edition/Advanced
Cluster
6TPRLOWhen all the following conditions are satisfied:
7Automatic
recognition function
of LUN
12Undisplay function of
ghost LUN
13SIM report at link
failure
14HP TruCluster with
TrueCopy function
When VERITAS Database Edition/Advanced Cluster for Real Application Clusters
or VERITAS Cluster Server 4.0 (I/O fencing function) is used
• The host mode 0C Windows or 2C Windows Extension is used
• The Emulex host bus adapter is used
• The mini-port driver is used
• TPRLO=2 is specified for the mini-port driver parameter of the host bus adapter
When all the following conditions are satisfied:
• The host mode 00 Standard or 09 Solaris is used
• SUN StorEdge SAN Foundation Software Version 4.2 or later is used
• You want to automate recognition of increase and decrease of devices when a
genuine SUN HBA is connected
When all the following conditions are satisfied:
• The host mode 08 HP is used
• You want to suppress creation of device files for devices to which the paths are
not defined
When the user wants to be informed by SIM (service information message) that the
number of link failures detected between ports exceeds the threshold.
When all the following conditions are satisfied:
• The host mode 07 Tru64 is used
• You want to use TruCluster to set a cluster to the Continuous Access XP P-VOL
and S-VOL, respectively
CAUTION: Do not select options other than those listed in Table 9.
Registering hosts in host groups
Before you can set LU paths, you must register hosts in host groups. For example, if HP-UX and Windows
hosts are connected to a port, you must register them separately in two different host groups.
When registering a host, you can assign a nickname to the host bus adapter. If you assign a nickname,
you will be able to easily identify each host bus adapter in the LUN Manager main pane. Although
WWNs are also used to identify each host bus adapter, a nickname is more helpful because you can
name host bus adapters after the host installation site or the host owners.
When using nicknames, note the following:
• A nickname can consist of up to 32 ASCII characters (letters, numerals, and symbols). You cannot use
the following characters for nicknames:
\ / : , ; * ? " < > | ~
• You cannot use the space character for the first or the last nickname character.
• Nicknames are case sensitive. For example, hp and HP are different nicknames.
To register hosts in a host group:
1. Start LUN Manager, and display the LUN Manager pane (Figure 7).
24LUN Manager for the XP10000/XP12000
2. In the LU Path tree, locate the port the host group belongs to and verify that LUN security is enabled.
NOTE: If the port icon has a key (), LUN security is enabled.
If LUN security is not enabled, right-click the port and select Disable->Enable in the shortcut menu.
3. If the desired host has never been connected via a cable to another port in the disk array, skip to
step 9.
4. In the Port list on the upper right corner of the WWN table (Fibre Channel), select the port to which the
desired host is connected.
5. Select the desired host bus adapter from the WWN table.
6. Select a host group from the tree, and click Add WWN. The Add New WWN (Fibre Channel) dialog
box appears.
Figure 10 Add New WWN dialog box
7. To assign a nickname to the host bus adapter, enter the nickname in the Nickname box and click OK.
NOTE: If you select two or more host bus adapters, the Add New WWN dialog box displays
repeatedly to let you assign a nickname to each selected HBA (see Figure 11). If you do not need to
assign nicknames to HBAs, select the The remaining WWNs do not need names check box, and
click OK. If you select this option, the Add New WWN dialog box does not prompt you for
additional nicknames.
Figure 11 Add New WWN dialog box (when registering a host that was previously connected to the disk
array)
8. Skip to step 12. If the desired host has never been connected via a cable to any port in the array, only
step 9 through step 11 apply.
9. Right-click the host group and select Add New WWN. The Add New WWN dialog box appears (see
Figure 10).
10.Select the desired host bus adapter from the WWN list. If the host bus adapter is not in the list, enter
the WWN in the box.
LUN Configuration and Security Manager XP user guide for the XP10000/XP1200025
11.If necessary, enter a nickname for the host bus adapter.
12.Click OK. The new WWN and nickname appear below the selected host group in the LU Path tree.
13.Click Apply in the LUN Manager main pane. A confirmation message appears.
14.Click OK. The settings are applied to the disk array.
NOTE: For Fibre Channel environments only: If the WWN table (located in the lower-left corner of the
pane) includes a host that you want to register, you can register the host by selecting the host group in the
LU Path tree, selecting the host from the WWN table, and then clicking Add WWN.
Associating host groups to logical volumes
You can use LUN Manager to define LU paths by associating host groups to logical volumes. For example,
if you associate a group of three hosts with logical volumes, LU paths are defined between the three hosts
and the logical volumes.
1. Start LUN Manager, and display the LUN Manager pane (Figure 7).
2. In the LU Path tree on the LUN Manager main pane, select a host group.
3. In the CU list above the LDEV table, select a CU number. The LDEV table shows LDEVs in the CU.
4. In the LDEV table, select one or more LDEVs. Press the Ctrl key to select multiple LDEVs.
5. In the LU Path table, select the LUs.
6. Click Add LU Path. A dialog box prompts you to confirm the LU Paths to be defined.
7. Click OK. The settings are shown in blue in the LU Path table.
8. Click Apply in the LUN Manager main pane. A confirmation message appears.
9. Click OK. The settings are applied to the disk array.
Changing or viewing LU path settings
Deleting LU paths
NOTE: Do not remove LU paths when host I/O is in progress.
1. Start LUN Manager, and display the LUN Manager pane (Figure 7).
2. In the LU Path tree on the LUN Manager main pane, select a port.
3. In the LU Path table, select one or more LUNs to which LDEVs are assigned (If an LDEV is assigned to a
LUN, the columns to the right of the LUN column are not empty).
4. Right-click the selected port and select Release LU Path. A dialog box displays information about the LU
paths to be deleted.
5. Click OK. The settings are shown in blue in the LU Path table.
6. Click Apply in the LUN Manager main pane. A confirmation message appears.
7. Click OK. The settings are applied to the disk array.
Changing the name and host mode of a host group
Before changing the host mode of a host group, back up the data on the host group’s port. The operation
for changing host mode should not be destructive, but data integrity cannot be guaranteed without a
backup.
To change the host mode for host group 0, port security can be enabled or disabled. For all other host
groups, you must enable port security before changing the host mode.
1. Start LUN Manager, and display the LUN Manager pane (Figure 7).
26LUN Manager for the XP10000/XP12000
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