Select Secondary Volumes window

ShadowImage User Guide

Version
9.8.7
Audience
anonymous
Part Number
MK-98RD9021-17

This window is the third window of the Create SI Pairs wizard. Use this window to select the LDEVs that are the S-VOLs and to remove unwanted pairs or LDEVs.

This window contains the following tables:

  • Available LDEVs table
  • Selected LDEVs table

The following image shows this window.

The following table describes the items in this window.

Item

Description

Capacity list

Click to select the capacity by which to filter the available LDEVs.

The remaining number you have to select

This item refers to the P-VOLs in the Selected Pairs table that do not have an assigned S-VOL.

Exclude Paired Volumes

Displayed only when ShadowImage is selected for Copy Type.

Select to hide volumes already in a pair.

Values:

  • Selected (default): Paired volumes are not shown in the list.
  • Cleared: Paired volumes are shown in the list.

Selection Object (VSP E series)

Filters LDEVs in the Available LDEVs table according to port type.

Values:

  • Fibre
  • iSCSI

Port ID list

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

Filters LDEVs in the Available LDEVs table according to the port ID.

Default: CL1-A

Host Group Name list

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

Filters LDEVs in the Available LDEVs table according to the host group name. This item is displayed when you select a Fibre Channel port for Port ID.

Default: Any

iSCSI Target Alias

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

Filters LDEVs in the Available LDEVs table by the iSCSI target alias. This item is displayed if you select an iSCSI port for Port ID.

Default: Any

Set button

Click to move an LDEV that you have selected in the Available LDEVs table to the Selected Pairs table.

You can also click to configure a pair you have selected in the Available LDEVs table and a pair you have selected in the Selected Pairs table.

Clear button

Click to return the selected S-VOL from the Selected Pairs table to the Available LDEVs table.

Sort Pairs button

Displayed only when ShadowImage is selected for Copy Type.

Click to sort the Selected Pairs table in one of the following ways:

  • Arrange in Mirror Unit: Data is sorted by mirror units.
  • Arrange in Topology: Data is sorted by topology; for example, L1 or L2 pairs.

Available LDEVs table

The following table describes the items in this table in the Select Secondary Volumes window of the Create SI Pairs wizard.

Item

Description

LDEV ID

The identifier of an LDEV that can be specified for an S-VOL.

LDEV Name

The LDEV's name.

Port ID

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

The port name of the LDEV's LUN path.

Host Group Name / iSCSI Target Alias

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

The host group name and ID or iSCSI target alias and ID of the LDEV's LUN path.

iSCSI Target Name

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

The iSCSI target name.

LUN ID

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

LUN identifier of the LDEV's LUN path.

Emulation Type (VSP 5000 series)

The LDEV's emulation type.

Capacity

The LDEV's capacity.

Provisioning Type

The LDEV's provisioning type.

Values:

  • Basic: Internal volume
  • DP: DP-VOL
  • External: External volume
  • Snapshot: HTI volume
  • ALU: Volume with ALU attribute.

Attribute

Not displayed when ShadowImage for Mainframe is selected for Copy Type.

The LDEV's attribute.

Values:

  • ALU: Volume with ALU attribute.
  • SLU: Volume with SLU attribute.
  • Data Direct Mapping: Volume with Data Direct Mapping attribute.

If the attribute is not set, a hyphen (-) is displayed.

CLPR

The LDEV's CLPR ID.

Encryption

Encryption information.

  • Enabled: Encryption is enabled for the parity group to which the LDEV belongs, or the LDEV is a V-VOL associated with a pool in which a pool volume has encryption enabled.
  • Disabled: Encryption is disabled for the parity group to which the LDEV belongs, or the LDEV is a V-VOL associated with a pool in which a pool volume has encryption disabled.
  • Mixed: The pool to which the LDEV belongs contains two or more of the following:
    • Volume for which encryption is enabled
    • Volume for which encryption is disabled
    • External volume

    Note: Data encryption is not ensured in an LDEV with Mixed encryption status.

A hyphen (-) is displayed if the LDEV is an external volume or migration volume. When the LDEV is a DP-VOL, the pool to which LDEV belongs is an external volume or blocked.

Capacity Saving

Information about the LDEV's capacity saving function.

  • Compression: The compression function is used.
  • Deduplication and Compression: The deduplication function and the compression function are used.
  • Disabled: The capacity saving function is not used.
Compression Acceleration Compression accelerator settings
  • Enabled: The compression accelerator setting is enabled.
  • Disabled: The compression accelerator setting is disabled.
  • - (hyphen): The compression accelerator setting is not available for an LDEV. Alternatively, the compression accelerator setting is available for an LDEV whose capacity saving setting is Disabled and whose capacity saving status is Disabled.

T10 PI

The LDEV's T10 PI attribute information.

  • Enabled: The LDEV's T10 PI attribute is enabled.
  • Disabled: The LDEV's T10 PI attribute is disabled.

For SIz pairs, a hyphen (-) is displayed.

Number of Secondary Volumes

Displayed only when ShadowImage is selected for Copy Type.

The number of S-VOLs that have been assigned to the selected P-VOL.

Detail button

Click to open the LDEV Properties window, which contains additional information for the selected LDEV.

Selected Pairs table

The following table describes the items in this table in the Select Secondary Volumes window of the Create SI Pairs wizard.

Item

Description

Primary Volume

The P-VOL information.

Values:

  • LDEV ID: The P-VOL's LDEV identifier.
  • LDEV Name: The P-VOL's LDEV name.
  • Port ID: The port name of the P-VOL LDEV's LUN path.
  • Host Group Name / iSCSI Target Alias: The host group name and ID or iSCSI target alias and ID of the P-VOL LDEV's LUN path.
  • iSCSI Target Name: The P-VOL's iSCSI target name.
  • LUN ID: The LUN identifier of the P-VOL LDEV's LUN path.
  • Attribute: The P-VOL's attribute.
  • (VSP 5000 series) Emulation Type: The P-VOL's emulation type.
  • Capacity: The P-VOL's volume capacity.
  • Encryption: The P-VOL's encryption information.
    • Enabled: Encryption is enabled for the parity group to which the P-VOL's LDEV belongs, or the P-VOL is a V-VOL associated with a pool in which a pool volume has encryption enabled.
    • Disabled: Encryption is disabled for the parity group to which the P-VOL's LDEV belongs, or the P-VOL is a V-VOL associated with a pool in which a pool volume has encryption disabled.
    • Mixed: The pool to which the P-VOL's LDEV belongs contains two or more of the following:
      • Volume for which encryption is enabled
      • Volume for which encryption is disabled
      • External volume

      Note: Data encryption is not ensured in an LDEV with Mixed encryption status.

    A hyphen (-) is displayed if the P-VOL is an external volume or migration volume. When the P-VOL is a DP-VOL, the pool to which P-VOL's LDEV belongs is an external volume or blocked.

  • Capacity Saving: Information about the P-VOL's capacity saving function.
    • Compression: The compression function is used.
    • Deduplication and Compression: The deduplication function and the compression function are used.
    • Disabled: The capacity saving function is not used.
  • Compression Acceleration: Compression accelerator settings.
    • Enabled: The compression accelerator setting is enabled.
    • Disabled: The compression accelerator setting is disabled.
    • - (hyphen): The compression accelerator setting is not available for an LDEV. Alternatively, the compression accelerator setting is available for an LDEV whose capacity saving setting is Disabled and whose capacity saving status is Disabled.
  • T10 PI: The P-VOL's T10 PI attribute information.
    • Enabled: The P-VOL's T10 PI attribute is enabled.
    • Disabled: The P-VOL's T10 PI attribute is disabled.

    For SIz pairs, a hyphen (-) is displayed.

For SIz, Port ID, Host Group Name / iSCSI Target Alias, iSCSI Target Name, LUN ID, and Attribute are not displayed.

Secondary Volume

The S-VOL information.

Values:

  • LDEV ID: The S-VOL's LDEV identifier.

    If no LDEV is assigned, a blank is displayed.

  • LDEV Name: The S-VOL's LDEV name.

    A hyphen (-) is displayed if no LDEV is assigned.

  • Port ID: Port name of the S-VOL LDEV's LUN path.
  • Host Group Name / iSCSI Target Alias: The host group name and ID or iSCSI target alias and ID of the S-VOL LDEV's LUN path.
  • iSCSI Target Name: The S-VOL's iSCSI target name.
  • LUN ID: The LUN identifier of the S-VOL LDEV's LUN path.
  • Attribute: The S-VOL's attribute.
  • Emulation Type (VSP E series): The S-VOL's emulation type.
  • Capacity: The S-VOL's volume capacity.
  • Encryption: The S-VOL's encryption information.
    • Enabled: Encryption is enabled for the parity group to which the S-VOL's LDEV belongs, or the S-VOL is a V-VOL associated with a pool in which a pool volume has encryption enabled.
    • Disabled: Encryption is disabled for the parity group to which the S-VOL's LDEV belongs, or the S-VOL is a V-VOL associated with a pool in which a pool volume has encryption disabled.
    • Mixed: The pool to which the S-VOL's LDEV belongs contains two or more of the following:
      • Volume for which encryption is enabled
      • Volume for which encryption is disabled
      • External volume

      Note: Data encryption is not ensured in an LDEV with Mixed encryption status.

    A hyphen (-) is displayed if the S-VOL is an external volume or migration volume. When the S-VOL is a DP-VOL, the pool to which S-VOL's LDEV belongs is an external volume or blocked.

  • Capacity Saving: Information about the S-VOL's capacity saving function.
    • Compression: The compression function is used.
    • Deduplication and Compression: The deduplication function and the compression function are used.
    • Disabled: The capacity saving function is not used.
  • Compression Acceleration: Compression accelerator settings.
    • Enabled: The compression accelerator setting is enabled.
    • Disabled: The compression accelerator setting is disabled.
    • - (hyphen): The compression accelerator setting is not available for an LDEV. Alternatively, the compression accelerator setting is available for an LDEV whose capacity saving setting is Disabled and whose capacity saving status is Disabled.
  • T10 PI: The S-VOL's T10 PI attribute information.
    • Enabled: The S-VOL's T10 PI attribute is enabled.
    • Disabled: The S-VOL's T10 PI attribute is disabled.

    For SIz pairs, a hyphen (-) is displayed.

For SIz, Port ID, Host Group Name / iSCSI Target Alias, iSCSI Target Name, LUN ID, and Attribute are not displayed.

Copy Type

The copy type.

Values:

  • SI-L1: SI L1
  • SI-L2: SI L2
  • (VSP 5000 series) SIMF: SIz

Mirror Unit

The mirror unit number.

Split Type

The split type.

Values:

  • Non Split: The pair is not split.
  • Quick Split: The pair is split, and then the data is copied so that the S-VOL is immediately available for read and write I/O. Any remaining differential data is copied to the S-VOL in the background.
  • Steady Split: Differential data is copied, and then the pair is split.

Copy Pace

The system option that determines the rate at which you want the storage system to copy data.

Values:

  • Slower: Improved host server I/O performance but slower processing speed.
  • Medium: Average processing speed and host server I/O performance.
  • Faster: Faster processing speed but slower host server I/O performance.

Change Options button

Click to open the Change Options window. Options set in this window are applied to all newly created pairs.

Edit Mirror Units button

Click to open the Edit Mirror Units window. Use this window to change the S-VOL's L1 and L2 mirror unit numbers, and thereby, pair topology.

For more information about changing the MU number and pair topology, see Creating ShadowImage pairs in HDvM - SNand Creating L1 and L2 pairs with different topologies in HDvM - SN.

Remove button

Click to remove the unwanted pairs or LDEV from the Selected Pairs table.

Note: When ShadowImage is selected for Copy Type, you cannot remove L1 pairs that have an L2 pair.