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 Hitachi 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.

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

Primary Volume Selection

Item

Description

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

Information about P-VOLs.

  • 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: Volume's iSCSI target name.

  • LUN ID: LUN identifier. TC and UR only.

  • LDEV ID: LDEV identifier.

  • LDEV Name: LDEV name.

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

  • Capacity: LDEV's capacity.

  • CLPR: CLPR number.

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 only

Number of tracks to be copied per remote I/O during the operation.

  • The range is 1-15. The default is 15.

  • 1 to 5: Slow and used for decreasing the effect to host I/O.

  • 5 to 10: Mid speed.

  • 11 to 15: Fast and host I/O performance may lower.

Initial Copy Priority

Scheduling order for the initial copy operation. Range is 1 to 256; default is 32.

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.

  • Journal ID: Journal's identifier.

  • Mirror ID: Mirror identifier.

  • Capacity: Volume's capacity.

  • CLPR: Volume's CLPR.

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

Clicking opens the Change Settings window.

Delete

Deletes the specified pair from the table.


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