Create TC Pairs window

Use this window to create pairs.

For complete information and instructions for TC, in Contents, click:

For complete UR information, see the section on creating pairs in the Universal Replicator User Guide.

In this topic, you can view the following tables.

Settings

Item

Description

Remote Storage System

Selections in the remote system.

  • Model / Serial Number: Model and serial number.

Note: VSP Gx00 is displayed for VSP Gx00 models and VSP Fx00 models.

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

Primary Volume Selection

Item

Description

Use Existing Volumes of UR Pairs

Displayed only for UR pairs.

Select whether to use the volume which is being used by the UR pair.

  • Yes: Creates a pair using the volume used by the UR pair. Select Yes to create a pair in a 3DC multi-target or cascade configuration with three UR sites.

  • No: Creates a pair without using the volume used by the UR pair. Select No not to create a pair in a 3DC multi-target or cascade configuration with three UR sites.

Selection Object

Select a port in the local storage system.

  • Fibre: Select when specifying LU for Fibre port.

  • iSCSI: Select when specifying LU for iSCSI port.

If any of the either Fibre port or iSCSI port is available, a port is selected automatically.

LU Selection

TC and UR only.

  • Port ID: Local system's port identifier.

  • Host Group Name: Host group name. Displays only when Fibre port is selected in Port Name.

  • iSCSI Target Alias: Selections for iSCSI target alias. All the LUNs in the indicated port for Available LDEVs if Any is selected. Displays when iSCSI port is selected for Port Name.

Available LDEVs

Displayed only for TC pairs.

Information about P-VOLs.

  • Port ID: Port identifier.

  • Host Group Name / iSCSI Target Alias: Host group name or iSCSI target alias.

  • iSCSI Target Name: Volume's iSCSI target name.

  • LUN ID: LUN identifier.

  • LDEV ID: LDEV identifier.

  • LDEV Name: LDEV name.

  • Provisioning Type: Whether the volume is Basic (internal) or External.

  • Attribute (TC only):

  • ALU: Volume with ALU attribute

  • SLU: Volume with SLU attribute

  • Data Direct Mapping: Volume with the data direct mapping attribute

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

  • Capacity: LDEV's capacity.

  • CLPR: CLPR ID.

  • Encryption: Encryption information.

  • Enabled: The parity group encryption to which LDEV belongs is enabled, or a V-VOL is associated with a pool in which a pool volume has encryption enabled.

  • Disabled: The parity group encryption to which 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 both pool volumes for which encryption is enabled and pool volumes for which encryption is disabled.

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

A hyphen (-) is displayed for an external volume. For DP-VOLs, the pool to which the LDEV belongs is either an external volume or blocked.

  • T10 PI: Volume's T10 PI attribute information.

  • Enabled: Volume's T10 PI attribute is enabled.

  • Disabled: Volume's T10 PI attribute is disabled.

Available Primary Volumes

Displayed only for UR pairs.

  • Port ID: Port identifier.

  • Host Group Name / iSCSI Target Alias: Host group name or iSCSI target alias.

  • iSCSI Target Name: Volume's iSCSI target name.

  • LUN ID: LUN identifier.

  • LDEV ID: LDEV identifier.

  • LDEV Name: LDEV name.

  • Pair Position: Identifies the volume as primary or secondary. A blank is displayed if the volume is not used by a pair.

  • Journal ID: Journal identifier. A blank is displayed if the volume is not used by a pair.

  • Mirror ID: Mirror ID. A blank is displayed if the volume is not used by a pair.

  • Provisioning Type: Whether the volume is Basic (internal) or External.

  • Attribute:

  • ALU: Volume with ALU attribute

  • SLU: Volume with SLU attribute

  • Data Direct Mapping: Volume with the data direct mapping attribute

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

  • Capacity: LDEV's capacity.

  • CLPR: CLPR ID.

  • Encryption: Encryption information.

  • Enabled: The parity group encryption to which LDEV belongs is enabled, or a V-VOL is associated with a pool in which a pool volume has encryption enabled.

  • Disabled: The parity group encryption to which 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 both pool volumes for which encryption is enabled and pool volumes for which encryption is disabled.

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

A hyphen (-) is displayed for an external volume. For DP-VOLs, the pool to which the LDEV belongs is either an external volume or blocked.

  • Paired Volume: Paired volume information. A blank is displayed if the volume is not used by a pair.

  • Model / Serial Number: Model and serial number.

  • LDEV ID: LDEV identifier.

  • Port ID: Port identifier of the volume.

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

  • LUN ID: LUN identifier of the volume.

Secondary Volume Selection

Item

Description

Base Secondary Volume

Information about Base Secondary Volume.

  • Port ID: Port identifier.

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

  • LUN ID: LUN identifier.

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.

Mirror Selection

UR only.

Item

Description

Master Journal

Select the master journal to which you allocate the primary volume. Registered journal IDs (except for those of restore journals) are displayed.

Mirror ID

Mirror's identifier.

Restore Journal

Select the restore journal to which you allocate secondary volumes. 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

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

Options

Item

Description

Primary Volume Fence Level

TC 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 S-VOL status to PSUE; otherwise no.

  • Never: Can be written to. 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 only.

Copy Pace

TC and GAD only

Number of tracks to be copied per remote I/O during the operation. The default is 15. To change the copy pace, enter a number from 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. Range is 1 to 256; default is 32.

For GAD pairs, this is not displayed.

Error Level

UR 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.

Selected Pairs table

Item

Description

Local Storage System

Information about volumes in the accessed system.

  • LDEV ID: LDEV identifier.

  • LDEV Name: LDEV name.

  • Port ID: Port identifier.

  • Host Group Name / iSCSI Target Alias: Host group name or iSCSI target alias.

  • iSCSI Target Name: Volume's iSCSI target name.

  • LUN ID: LUN identifier.

  • Pair Position (UR only): Whether volume is a P-VOL or S-VOL.

  • Attribute:

  • ALU: Volume with ALU attribute

  • SLU: Volume with SLU attribute

  • Data Direct Mapping: Volume with the data direct mapping attribute

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

  • Journal ID: Journal's identifier.

  • Mirror ID: Mirror identifier.

  • Capacity: Volume's capacity.

  • CLPR: Volume's CLPR.

  • Encryption: Encryption information.

  • Enabled: The parity group encryption to which LDEV belongs is enabled, or a V-VOL is associated with a pool in which a pool volume has encryption enabled.

  • Disabled: The parity group encryption to which 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 both pool volumes for which encryption is enabled and pool volumes for which encryption is disabled.

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

A hyphen (-) is displayed for an external volume. For DP-VOLs, the pool to which the LDEV belongs is either an external volume or blocked.

  • Journal Encryption: Journal's encryption status (displayed only for UR pairs).

  • Enabled: The journal contains encrypted volumes.

  • Disabled: The journal contains unencrypted volumes.

  • Mixed: The journal contains both encrypted and unencrypted volumes.

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

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

  • T10 PI: Volume's T10 PI attribute information.

  • Enabled: Volume's T10 PI attribute is enabled.

  • Disabled: Volume's T10 PI attribute is disabled.

Remote Storage System

Information about the remote system.

  • Model / Serial Number: Model and serial number.

  • Port ID: Port identifier.

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

  • LUN ID: LUN identifier.

  • Journal ID: Journal's identifier. UR only.

Path Group ID

Path group ID.

Fence Level

TC only.

Fence level setting.

CTG ID

UR only.

Consistency group identifier.

Initial Copy Type

Type of the pair create operation.

Copy Pace

TC only

Number of tracks copied per remote I/O operation.

Initial Copy Priority

Scheduling order for pair create operation.

Error Level

UR only.

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

Change Settings

Opens the Change Settings window.

Delete

Deletes the specified pair from the table.