Add iSCSI Host

Overview

This function registers a new iSCSI host (HBA).

The following list shows the maximum number of hosts (*1) that can be registered for each storage system model.

  • ETERNUS DX60 S5: 128

  • ETERNUS DX100 S5/DX200 S5: 1024

  • ETERNUS DX500 S5/DX600 S5: 4096

  • ETERNUS DX8100 S4: 1024

  • ETERNUS DX900 S5 or ETERNUS DX8900 S4: 8192

  • ETERNUS AF150 S3/AF250 S3: 1024

  • ETERNUS AF650 S3: 4096

*1  :  Total of all hosts, regardless of the interface type.
Caution

  • This action item is only displayed when the "Use "Add Host"" checkbox is selected for the "Function to Add Host" field in "Web GUI Settings". This checkbox is not selected (this function is not displayed) by default. Refer to the [Setup Subsystem Parameters] function for details.

  • Note that this function does not create a host group. The storage system also has a function that creates new host groups to register hosts as their members. Refer to the [Add iSCSI Host Group] function for details.

  • Hosts that are registered with this function can belong to host groups. However, only one LUN group can be allocated to a combination of host and port when configuring host affinity.

  • Refer to "Configuration Guide -Server Connection-" for each OS type to assign an appropriate host response to the host that is to be registered. A host response has a recommended pattern which has been prepared for each OS type. Refer to "Recommended Patterns of Host Responses" for details. If an appropriate host response is not configured to the host, the path may not be switched correctly or the volume may not be recognized correctly.

  • Unlike Web GUI, CLI can register two iSCSI hosts that have the same iSCSI name by setting an IP address for one of these iSCSI hosts and by not setting an IP address for the other iSCSI host. However, if iSCSI hosts are registered in the storage system in this way, iSCSI hosts cannot be added using Web GUI. Avoid this configuration when using Web GUI and CLI together. If both iSCSI hosts already exist, use CLI to specify an IP address for the iSCSI host without the IP address.

Note

  • To change the iSCSI host information, use the [Modify iSCSI Host] function.

  • The host affinity setting can be specified for each iSCSI host. Refer to the [Create Host Affinity] function for details.

User Privileges

Availability of Executions in the Default Role

Default role Availability of executions
Monitor  
Admin
StorageAdmin
AccountAdmin  
SecurityAdmin  
Maintainer

Refer to "User Roles and Policies" for details on the policies and roles.

Settings

Host Setting

In this screen, register the iSCSI hosts.

Item Description

Number of Hosts

The number of hosts that are to be registered is displayed.

The number of hosts to be registered is determined by the total for the number of hosts selected from the host list and the number of manually specified hosts.

For the ETERNUS DX60 S5

0 - 128

For the ETERNUS DX100 S5/DX200 S5

0 - 1024

For the ETERNUS DX500 S5/DX600 S5

0 - 4096

For the ETERNUS DX8100 S4

0 - 1024

For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4

0 - 8192

For the ETERNUS AF150 S3/AF250 S3

0 - 1024

For the ETERNUS AF650 S3

0 - 4096

The following two methods are available to register a host.

Selecting the Registration Target Host from the List

This screen is displayed when the [Now Connected] tab is clicked. Select the hosts that are to be registered in the storage system and specify the iSCSI host information.

Item Description Setting values

Checkbox to select a host

Select the checkbox of the iSCSI host that is to be registered in the storage system.

Caution

  • If the total for the number of hosts selected from the host list and the manually specified hosts exceeds the maximum number of hosts, iSCSI hosts cannot be registered.

Note

  • In the host list, the iSCSI hosts that are connected to the iSCSI-CA port or the iSCSI-CA/RA port and are not registered in the storage system are displayed (*1).

    *1  :  A host that is not registered in the storage system indicates that a host with the same parameters (iSCSI name, IP version, and Alias name) as the target host is not registered. However, the host is regarded as an unregistered host when its parameters (iSCSI name, IP version, Alias name) are the same but it has a different IP address. The obtained "iSCSI Name" and "Port" are displayed in the screen.

  • The following items can be specified only for the iSCSI hosts that are selected by checkboxes; "Name", "Host Response", "IP Version", "IP Address", "Alias Name", "CHAP User ID", "CHAP Password", and "Confirm CHAP Password".

Name

Specify the iSCSI host name.

An existing host name cannot be specified.

Up to 16 alphanumeric characters, symbols (except "," (comma) and "?"),

and spaces

iSCSI Name

The iSCSI name of the iSCSI host is displayed.

Host Response

Select a host response to be assigned to an iSCSI host.

A list of host responses that are created in the storage system is displayed.

Default

Solaris MPxIO

HP-UX

AIX

AIX VxVM

VS850/SVC

BS2000

Host responses registered in the storage system

IP Version

Select the IP version of the iSCSI host.

Caution
  • To register an iSCSI host without using an IP address, perform IP version selection as follows:

    • Select "IPv4" when the IP address format of the iSCSI host is IPv4 (when using an IPv4 host).

    • Select "IPv6" when the IP address format of the iSCSI host is IPv6 (when using an IPv6 host).

    • If the IP address format of the iSCSI host cannot be checked (when either an IPv4 host or an IPv6 host is used), register two hosts. Select "IPv4" for one host, and select "IPv6" for the other host. Specify the same iSCSI name, CHAP user ID, and CHAP password for each host.

IPv4

IPv6

IP Address

Specify the IP address of the iSCSI host.

There are two methods to specify an IP address; "IPv4" and "IPv6". The IP address must be specified with the selected IP version (IPv4 or IPv6). The following IPv6 addresses can be used; "link local address", "global address", "unique local address", or "6to4 address". Refer to "Available IPv6 Address" for details. When the current setting is displayed, the IPv6 address is displayed as an abbreviation.

It is not necessary to specify this item if IP address is not used.

For IPv4 address

xxx.xxx.xxx.xxx

xxx: 1 - 255 for the top field (decimal)

xxx: 0 - 255 for other fields (decimal)

For IPv6 address

xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx

xxxx: 0 - ffff (FFFF) (hexadecimal, alphanumeric characters)

Refer to "IPv6 Address Notation" for details.

Blank

Alias Name

Specify the Alias name of the iSCSI host.

It is not necessary to specify this item if Alias name is not used.

An existing Alias name cannot be specified.

Up to 31 alphanumeric characters,

symbols (except "," (comma) and "?"),

and spaces

Blank

CHAP User ID

Specify the user ID for the CHAP Authentication.

It is not necessary to specify this item if the CHAP Authentication is not used.

Configure a user ID and a password as a pair.

Up to 255 alphanumeric characters,

symbols (except "," (comma) and "?"),

and spaces

Blank

CHAP Password

Specify the password for the CHAP Authentication.

It is not necessary to specify this item if the CHAP Authentication is not used.

Configure a user ID and a password as a pair.

12 - 100 alphanumeric characters,

symbols (except "," (comma) and "?"),

and spaces

Blank

Confirm CHAP Password

Input the CHAP password again for confirmation.

12 - 100 alphanumeric characters,

symbols (except "," (comma) and "?"),

and spaces

Blank

Ports

The location information of the CA port, which is connected to the iSCSI host, is displayed.

For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4

CE#x CM#y CA#z Port#w

For the other models

CM#y CA#z Port#w

x: CE number

y: CM number

z: CA number

w: Port number

Filter Setting

Function Description

Filter setting is a function used to display a list of only the iSCSI hosts meeting all the specified conditions.

No filtering is set by default. The following table shows conditions that can be specified.

Item Description Setting values

iSCSI Name

Input the iSCSI name of the iSCSI host that is to be displayed.

iSCSI hosts matching or partially matching the entered iSCSI name are displayed.

When not using the iSCSI name for filtering, leave this item blank.

iSCSI name

Blank

Manually Specifying the Registration Target Host

This screen is displayed when the [Manual Input] tab is clicked. To register a new iSCSI host that is not connected to the iSCSI-CA port or the iSCSI-CA/RA port, directly enter the iSCSI host information.

[Add iSCSI Host] Screen

Item Description Setting values

Name

Refer to the description in "Selecting the Registration Target Host from the List" for details.

Refer to "Selecting the Registration Target Host from the List" for setting values.

iSCSI Name

Input the iSCSI name of the iSCSI host (required).

An iSCSI name that has already been registered in the storage system cannot be used.

4 - 223 alphanumeric characters

and symbols "-" (hyphen), "." (period), and ":" (colon)

The name starts with "iqn." or "eui.".

Host Response

Refer to the description in "Selecting the Registration Target Host from the List" for details.

Refer to "Selecting the Registration Target Host from the List" for setting values.

IP Version

IP Address

Alias Name

CHAP User ID

CHAP Password

Confirm CHAP Password

Function Button

Button Description

[Rediscover]

Reacquire the iSCSI hosts that are connected to the iSCSI-CA port or the iSCSI-CA/RA port.

The [Rediscover] button is displayed in the [Now Connected] screen. Click the [Rediscover] button to update the iSCSI host list. The [Rediscover] button clears the checkboxes for the selected iSCSI hosts. Note that any iSCSI host information that is specified in the [Manual Input] screen is retained.

[Add]

Adds iSCSI host information by manual entry.

The [Add] button is displayed in the [Manual Input] screen. If the maximum number of hosts has already been registered, the [Add] button cannot be clicked.

[Delete]

Deletes the selected iSCSI host information.

The [Delete] button is displayed in the [Manual Input] screen. If no iSCSI host has been added, the [Delete] button is not displayed.

Operating Procedures

In this screen, register the iSCSI hosts in the storage system.

  1. Click [Add iSCSI Host] in [Action].

  2. Add a host in the storage system in the following procedures.

    • Selecting the registration target host from the list

      1. Click the [Now Connected] tab.

      2. Select the host that is to be registered from the iSCSI host list, input the iSCSI host information, and click the [Add] button.

        → A confirmation screen appears.

        Caution

        • If the iSNS server has not been configured in the [Modify iSCSI Port Parameters] function, the iSCSI host cannot be automatically acquired.

        • The following restrictions in the environment that is described below apply for the automatic acquirement of host information (*1) even when the iSNS server is specified.
          *1  :  "iSCSI Name", "IP Version", "IP Address", and "Alias Name"
          • When one of the following OSs is used and there are multiple hosts that have the same iSCSI name but different IP addresses, only the information of one host can be acquired.

            • Windows Server 2012

            • Windows Server 2012 R2

            • Windows Server 2016

            • Windows Server 2019

            • Oracle Solaris 10

          • When the host OS is Oracle Solaris 11, "IP Version" and "IP Address" cannot be acquired.

        • An error screen appears in the following conditions:

          • The "Name" is not entered

          • The "Name" does not satisfy the input conditions

          • The "Name" is already used for the registration target host or the same "Name" is already used in the storage system

          • The "IP Address" does not satisfy the input conditions

          • If the "IP Address" is entered, an iSCSI host with the same combination of "iSCSI Name" and "IP Address" is already registered

          • If the "IP Address" is not entered, an iSCSI host with the same combination of "iSCSI Name" and "IP Version" is already registered

          • The "Alias Name" does not satisfy the input conditions

          • The "Alias Name" is already used for the registration target host or the same "Alias Name" is already used in the storage system

          • The "CHAP User ID" does not satisfy the input conditions

          • The "CHAP Password" does not satisfy the input conditions

          • The "CHAP Password" and the "Confirm CHAP Password" do not match

          • Either of the "CHAP User ID" or the "CHAP Password" has been specified

          • The number of hosts that are to be registered is "0"

          • The number of registered hosts has exceeded the maximum number for the storage system

    • Manually specifying the registration target host

      1. Click the [Manual Input] tab.

      2. Click the [Add] button.

        → The [Add iSCSI Host] screen appears.

      3. Specify the host information of the iSCSI host that is to be registered, and click the [OK] button.

        → Returns to the [Manual Input] screen.

        Caution
        • An error screen appears in the following conditions:

          • The "Name" is not entered

          • The "Name" does not satisfy the input conditions

          • The "Name" is already used for the registration target host

          • The "iSCSI Name" is not entered

          • The "iSCSI Name" does not satisfy the input conditions

          • The "iSCSI Name" is already used for the registration target host

          • The "IP Address" does not satisfy the input conditions

          • The "Alias Name" does not satisfy the input conditions

          • The "Alias Name" is already used for the registration target host

          • The "CHAP User ID" does not satisfy the input conditions

          • The "CHAP Password" does not satisfy the input conditions

          • The "CHAP Password" and the "Confirm CHAP Password" do not match

          • Either of the "CHAP User ID" or the "CHAP Password" has been specified

      4. Repeat Step b and c when registering multiple iSCSI hosts.

      5. After registering the iSCSI host is complete, click the [Add] button.

        → A confirmation screen appears.

        Caution
        • An error screen appears in the following conditions:

          • The same "Name" has already been registered in the storage system

          • The same "iSCSI Name" has already been registered in the storage system

          • If the "IP Address" is entered, an iSCSI host with the same combination of "iSCSI Name" and "IP Address" is already registered

          • If the "IP Address" is not entered, an iSCSI host with the same combination of "iSCSI Name" and "IP Version" is already registered

          • The same "Alias Name" has already been registered in the storage system

          • The number of hosts that are to be registered is "0"

          • The number of registered hosts has exceeded the maximum number for the storage system

  3. Click the [OK] button.

    → Registration of the iSCSI host starts.

  4. Click the [Done] button to return to the screen when starting this function in Step 1.

    Note

    • Click the [Continue] button to continue registering iSCSI hosts.