Create TC Pairs window or Create UR Pairs window

Copy Type (VSP 5000 series)

Type of pair:

• TrueCopy
• Universal Replicator
• TrueCopy for Mainframe
• Universal Replicator for Mainframe

Local CU (VSP 5000 series)

TCz only.

Local system's CU number. You can select the CU number of the local storage system between [00] and [FE].

Remote Storage System

Selections in the remote system.

• Model / Serial Number: Model and serial number.

• Path Group ID: Select the ID of the path group.

  (VSP 5000 series) Does not display for TCz.

• (VSP 5000 series) CU/SSID: CU number and SSID. TCz only.

  Specify this when you select a provisional CU number in Local CU.

Use Existing Volumes of UR Pairs

UR only.

• Yes: Create a pair using the existing volumes of UR pairs. For VSP 5000 series, select this item when creating a pair with 3DC multi-target by 3 UR sites or with cascade configuration.
• No: Create a pair without using the existing volumes of UR pairs. For VSP 5000 series, select this item when not creating a pair with 3DC multi-target by 3 UR sites or with cascade configuration.

Use Existing Volumes of URMF Pairs (VSP 5000 series)

URz only.

• Yes: Create a pair using the existing volumes of URz pairs. Select this item when creating a pair with 3DC multi-target by 3 URz sites or with cascade configuration.
• No: Create a pair without using the existing volumes of URz pairs. Select this item when not creating a pair with 3DC multi-target by 3 URz sites or with cascade configuration.

Selection Object (VSP Gx00 modelsand VSP Fx00 models, VSP E series)

Select the port type in the local storage system.

• Fibre: Select when specifying LU for Fibre port.
• iSCSI: Select when specifying LU for iSCSI port.

If only one port type (Fibre or iSCSI) has an LU, the port type is selected automatically.

LU Selection

TC and UR only.

• Port ID: Local system's port identifier.
• Host Group Name: Host group name. If Any is selected, every LUN for the specified port is displayed in the Available LDEVs table or in the Available Primary Volumes table. Displayed when Fibre port is selected for Port ID.
• iSCSI Target Alias: iSCSI target Alias. If Any is selected, every LUN for the specified port is displayed in the Available LDEVs table or in the Available Primary Volumes table. Displayed when iSCSI port is selected for Port ID.

Available LDEVs table (TC/TCz)

Available Primary Volumes table (UR/URz)

Information about P-VOLs. Displayed when Fibre port is selected in Port ID for LU Selection.

• Port ID: Port identifier. TC and UR only.
• Host Group Name/iSCSI Target Alias: Host group name or iSCSI target alias. TC and UR only.
• iSCSI Target Name: iSCSI target name. TC and UR only.
• LUN ID: LUN identifier. TC and UR only.
• LDEV ID: LDEV identifier.
• LDEV Name: LDEV name.
• Pair Position: Whether the volume is a primary or secondary volume. A blank indicates an unpaired volume. UR/URz only.
• Journal ID: Journal identifier. A blank indicates an unpaired volume. UR/URz only.
• Mirror ID: Mirror identifier. A blank indicates an unpaired volume. UR/URz only.
• Provisioning Type: Provisioning type of the volume. Whether the volume is Basic (internal) or External.
• Attribute:
  • ALU: The volume has the ALU attribute.
  • SLU: The volume has the SLU attribute.
  • Data Direct Mapping: The volume has the data direct mapping attribute.

  If the attribute is not set, a hyphen (-) is displayed. TC and UR only.

• (VSP 5000 series) Emulation Type: Emulation type. TC/TCz/URz only.
• Capacity: LDEV's capacity.
• CLPR: CLPR ID.
• Encryption: Encryption information.
  • Enabled: Encryption of the parity group to which the LDEV belongs is enabled, or a V-VOL is associated with a pool in which a pool volume has encryption enabled.
  • Disabled: Encryption of the parity group to which the LDEV belongs is disabled, or a V-VOL is 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: Encryption of data is not ensured in an LDEV with the Mixed encryption status. To manage data encryption, use an LDEV in which Encryption is Enabled or Disabled.

  For an external volume or migration volume, a hyphen (-) is displayed.

  For V-VOLs of Dynamic Provisioning or Dynamic Provisioning for Mainframe, the pool to which the LDEV belongs is an external volume or blocked.

• Paired Volume: Information about a paired volume. A blank indicates that the volume is not used by the pair. UR/URz only
  • Model / Serial Number: Model and serial number.
  • LDEV ID: LDEV identifier.
  • Port ID: Volume's port identifier. UR only.
  • Host Group ID/iSCSI Target ID: Volume's host group ID or iSCSI target ID. UR only.
  • LUN ID: Volume's LUN identifier. UR only.
• Capacity Saving: Information on the 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: Information on the compression accelerator settings.
  • Enabled: Compression accelerator is enabled.
  • Disabled: Compression accelerator is disabled.
  • - (hyphen): Compression accelerator is not available for an LDEV. Alternatively, compression accelerator is available for an LDEV whose capacity saving setting is Disabled and whose capacity saving status is Disabled.
• T10 PI: T10 PI attribute of the volume.
  • Enabled: T10 PI attribute of the volume is enabled.
  • Disabled: T10 PI attribute of the volume is disabled.

  The T10 PI attribute status is displayed only for TC/UR pairs.

Base Secondary Volume

Selections for the initial S-VOL.

TC and UR only.

• Port ID: Port identifier.
• Host Group ID/iSCSI Target ID: Host group identifier or iSCSI target identifier.
• LUN ID: LUN identifier.

(VSP 5000 series) TCz and URz only.

• LDKC: "00" is displayed, cannot be changed.
• CU: For TCz: CU number of the volume.

  For URz: the CU number of the remote system, ranging from 00 to FF.

• LDEV: LDEV number, ranging from 00 to FF.

Selection Type

Default is Interval.

• Interval: Interval for allocating S-VOLs.
• Relative Primary Volume: S-VOLs paired with P-VOLs relative to LUN or LDEV numbers.

Master Journal

Master journal number and type.

(VSP 5000 series) The journal type option is enclosed by parentheses.

If Yes is selected for Use Existing Volumes of UR Pairs or Use Existing Volumes of URMF Pairs, Depend on Selected P-Vols is selected.

Mirror ID

Mirror's identifier.

Restore Journal

Restore journal number. All journal IDs (000 to 0FF) are displayed.

Current Number of Master Journal Mirrors

Number of mirrors in the master journal.

Total Number of Master Journal Mirrors

Displays the following:

• Number of mirrors in the master journal.
• Number of mirrors added during the Create UR Pairs operation.
• Number of mirrors for the selected volume in Selected Pairs table.

CTG ID

UR only.

Displays the consistency groups registered in the storage system. An asterisk indicates that the group is assigned to a pair in the Select Pairs table.

Primary Volume Fence Level

TC and TCz only

Whether the P-VOL can be written to when the pair is split due to error.

• Data: Cannot be written to.
• Status: Can be written to only if the primary system can change the S-VOL status to PSUE for TC or Suspend for TCz. If the primary system cannot change the S-VOL status to PSUE for TC or Suspend for TCz, the P-VOL cannot be written to.
• Never: Can be written to, even if the primary system cannot change the S-VOL status. The default.

Initial Copy Type

Whether data is copied to the S-VOL during this operation.

• Entire Volume: Data is copied. The default.
• None: Data is not copied.
• Delta: Data is not copied. UR/URz only.

Copy Pace

Number of tracks to be copied per remote I/O during the operation. The default is 15. The range is different depending on the volume emulation type.

• (VSP 5000 series) OPEN-V (TC): The range is 1 to 4.
  • 1 is slow. This setting limits the impact on host I/O to maintain storage system performance.
  • 2 and 3 is medium.
  • 4 is fast. This setting increases the impact on host I/O and might result in decreased storage system performance.

    If you enter a number from 5 to 15, the speed of 4 (fast copy pace) is used.

• (VSP 5000 series) Other than OPEN-V (TC): The range is 1 to 15.
  • 1 to 5 are a slow copy pace, and are used to reduce impact on host I/O.
  • 6 to 10 are a medium copy pace.
  • 11 to 15 are a fast copy pace, and the host I/O performance might be degraded.
• (VSP 5000 series) TrueCopy for Mainframe: You can specify 3 or 15 from the list.
  • 3 is slow. This setting limits the impact on host I/O to maintain storage system performance.
  • 15 is fast. This setting increases the impact on host I/O and might result in decreased storage system performance.
• (VSP G/F350, G/F370, G/F700, G/F900, VSP E series) Displayed for TC and GAD only. The range is 1 to 4.
  • 1 is slow. This setting limits the impact on host I/O to maintain storage system performance.
  • 2 and 3 is medium.
  • 4 is fast.

    This setting increases the impact on host I/O and might result in decreased storage system performance. If you enter a number from 5 to 15, the speed of 4 (fast copy pace) is used.

Initial Copy Priority

Scheduling order for the initial copy operation. The range is 1 to 256, and the default is 32.

(VSP G/F350, G/F370, G/F700, G/F900, VSP E series) For GAD pairs this is not displayed.

CFW Data (VSP 5000 series)

TCz only.

Whether CFW (DASD fast write) data is copied to the S-VOL.

• Primary Volume Only: Data is not copied to S-VOL (default).
• Secondary Volume Copy: Data is copied to S-VOL.

DFW to Secondary Volume (VSP 5000 series)

TCz only.

Whether the primary system splits the pair when the secondary system cannot copy DFW data to the S-VOL.

• Require: Splits the pair.
• Not Require: Does not split.

Some combinations of the DFW setting and the primary volume fence level setting might cause an eternal I/O error in a host application when the P-VOL is updated. Track pairs for which DFW is set to Require to make sure that this item is not blocked.

IBM PPRC commands do not support this item. If you use the CESTPAIR TSO command to create a TCz pair, this item is set to Not Require.

Host I/O Time Stamp Transfer (VSP 5000 series)

TCz only.

Whether the host I/O time stamp is transferred from P-VOL to S-VOL.

Error Level

UR and URz only.

Whether to split all pairs in the mirror if a failure occurs during this operation:

• Mirror: Pairs in the mirror are split.
• LU: Only the failed pair is split. UR only.
• (VSP 5000 series) Volume: Only the failed pair is split. URz only.

CFW (VSP 5000 series)

URz only.

Whether to copy cache fast write (CFW) data to the S-VOL.

• Primary Volume Only: Does not copy. Default.
• Secondary Volume Copy: Copies.

Local Storage System

Information about volumes in the accessed system.

• LDEV ID: LDEV identifier.
• LDEV Name: LDEV name.
• Port ID: Port identifier. TC/UR only.
• Host Group Name/iSCSI Target Alias: Host group name or iSCSI target alias. TC/UR only.
• iSCSI Target Name: iSCSI target name. TC/UR only.
• LUN ID: LUN identifier. TC/UR only.
• Pair Position: UR or URz only. Indicates whether the volume is the P-VOL or S-VOL of the pair.
• (VSP 5000 series) Emulation Type: Emulation type of the volume.

  TCz/TC/URz only.

• Attribute:
  • ALU: The volume has the ALU attribute.
  • SLU: The volume has the SLU attribute.
  • Data Direct Mapping: The volume has the data direct mapping attribute.

  If the attribute is not set, a hyphen (-) is displayed. TC and UR only.

• Journal ID: Journal's identifier. UR or URz only.
• Mirror ID: Mirror identifier. UR or URz only.
• Capacity: Capacity of the volume.
• CLPR: CLPR ID of the volume.
• Encryption: Encryption information:
  • Enabled: Encryption of the parity group to which the LDEV belongs is enabled, or a V-VOL is associated with a pool in which a pool volume has encryption enabled.
  • Disabled: Encryption of the parity group to which the LDEV belongs is disabled, or a V-VOL is 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: Encryption of data is not ensured in an LDEV with the Mixed encryption status. To manage data encryption, use an LDEV in which Encryption is Enabled or Disabled.

  For an external volume, a hyphen (-) is displayed.

  For V-VOLs of Dynamic Provisioning or Dynamic Provisioning for Mainframe, the pool to which the LDEV belongs is an external volume or blocked.

• Journal Encryption: Journal's encryption status. UR or URz only.
  • Enabled: The journal contains encrypted volumes.
  • Disabled: The journal contains unencrypted volumes.
  • Mixed: The pool to which the journal volume belongs contains two or more of the following:
    • Volume for which encryption is enabled
    • Volume for which encryption is disabled
    • External volume

    Note: Encryption of data is not ensured in an LDEV with the Mixed encryption status. To manage data encryption, use an LDEV in which Encryption is Enabled or Disabled.

    A hyphen (-) is displayed if the pool to which the journal volume belongs is an external volume, created by migration, or blocked.

• Capacity Saving: Information on the 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: Information on the compression accelerator settings.
  • Enabled: Compression accelerator is enabled.
  • Disabled: Compression accelerator is disabled.
  • - (hyphen): Compression accelerator is not available for an LDEV. Alternatively, compression accelerator is available for an LDEV whose capacity saving setting is Disabled and whose capacity saving status is Disabled.
• T10 PI: T10 PI attribute of the volume.
  • Enabled: T10 PI attribute of the volume is enabled.
  • Disabled: T10 PI attribute of the volume is disabled.

  The T10 PI attribute status is displayed only for TC or UR pairs.

Remote Storage System

Information about the remote system.

• Model / Serial Number: Model and serial number.
• Port ID: Port identifier. TC/UR only.
• Host Group ID/iSCSI Target ID: Host group identifier or iSCSI target identifier. TC/UR only.
• LUN ID: LUN identifier. TC/UR only.
• (VSP 5000 series) SSID: SSID number. TCz only.
• (VSP 5000 series) LDEV ID: LDEV identifier. TCz/URz only
• Journal ID: Journal's identifier. UR/URz only.

Path Group ID

Path group ID. Not used with TCz.

Fence Level

TC or TCz only.

P-VOL fence level.

CTG ID

UR only.

Consistency group identifier.

Initial Copy Type

Type of the pair create operation.

Copy Pace

TC or TCz only.

Number of tracks copied per remote I/O operation.

Initial Copy Priority

Scheduling order for pair create operation.

CFW Data (VSP 5000 series)

TCz only.

Whether CFW data is copied to the S-VOL.

DFW to Secondary Volume (VSP 5000 series)

TCz only.

Whether the primary system splits pairs when the secondary system cannot copy DFW data to the S-VOL.

Host I/O Time Stamp Transfer (VSP 5000 series)

TCz only.

Whether the host's time stamp is transferred to the S-VOL.

Error Level

UR or URz only.

Whether all pairs in the mirror are split if a failure occurs during this operation.

CFW (VSP 5000 series)

URz only.

Whether CFW data is copied to the S-VOL.

Change Settings

Opens the Change Settings window.

Delete

Deletes the specified pair from the table.