TI Pairs window

Thin Image User Guide

Version
9.8.6
Audience
anonymous
Part Number
MK-98RD9020-16

The following image shows the TI Pairs window.



The following table lists the items in the TI Pairs table on the TI Pairs window.

Item

Description

Primary Volume

The P-VOL information.

Values:

LDEV ID
The P-VOL's LDEV identification number.
LDEV Name
The P-VOL's LDEV name.
SLU ID
The P-VOL’s SLU ID. If the SLU attribute is not specified for the P-VOL, a hyphen (-) is displayed.
Port ID
The port name of the P-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
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. If the path is not defined, a blank is displayed.
iSCSI Target Name
The P-VOL's iSCSI target name. If the LUN path is not defined, a blank is displayed.
LUN ID
The LUN identification number of the P-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
Namespace ID
The namespace ID of the P-VOL. If the LDEV of the P-VOL is not registered as a namespace, a hyphen (-) is displayed. Namespace ID is not displayed for VSP E series other than VSP E1090.
Provisioning Type
The P-VOL’s provisioning type.
Basic
Internal volume
DP
DP-VOL
External
External volume
Attribute
The P-VOL's attribute.
Capacity
The P-VOL's capacity.
Data Reduction Shared Volume
Indicates whether the P-VOL is a data reduction shared volume.
Yes
Data reduction shared volume
No
Volume other than a data reduction shared volume
CLPR
The P-VOL's CLPR ID.
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. If you want to manage data encryption, use LDEVs with the Enabled or Disabled status.

If the LDEV is an external volume or migration volume, a hyphen (-) is displayed. (VSP 5000 series)

For DP-VOLs, the pool to which an 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.
Virtual Storage Machine
The model type and serial number of the virtual storage machine to which the P-VOL belongs.
Virtual LDEV ID
The identification number of the P-VOL’s virtual LDEV.
Virtual Device Name
The name of the P-VOL’s virtual device, in a combined format of "virtual emulation type", "number of virtual LUSE volumes", and "virtual CVS attribute". Each of these three items is displayed only if it is specified. If none of them are specified, a blank is displayed.
Virtual SSID
The virtual SSID of the P-VOL. If no virtual SSID is specified, a blank is displayed.

Snapshot Group

The snapshot group name.

Status

The pair status.

For more information about pair status, see Thin Image pair status definitions.

Processing Status

The processing status for a pair volume is displayed.

Expanding: The capacity of an HTI pair volume is being expanded.

If the volume capacity is not being expanded, or if V-VOLs other than DP-VOLs are used as pair volumes, this field remains blank.

Snapshot Date

The date and time you split the pairs to store snapshot data.

Snapshot SLU ID

The snapshot data SLU ID. If the SLU attribute is not specified for the snapshot data, a hyphen (-) is displayed.

Secondary Volume

The S-VOL information.

Values:

LDEV ID
The S-VOL's LDEV identification number. Click to open the LDEV Properties window.
LDEV Name
The S-VOL's LDEV name.
Port ID
The port name of the S-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
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. If the path is not defined, a blank is displayed.
iSCSI Target Name
The S-VOL's iSCSI target name. If the LUN path is not defined, a blank is displayed.
LUN ID
The LUN identification number of the S-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
Namespace ID
The namespace ID of the S-VOL. If the LDEV of the S-VOL is not registered as a namespace, a hyphen (-) is displayed. Namespace ID is not displayed for VSP E series other than VSP E1090.
Attribute
The S-VOL's attribute.
Capacity
The S-VOL's capacity.
Data Reduction Shared Volume
Indicates whether the S-VOL is a data reduction shared volume.
Yes
Data reduction shared volume
No
Volume other than a data reduction shared volume
CLPR
The S-VOL's CLPR ID.
Encryption
S-VOL's encryption information.
Enabled
Encryption is enabled for the parity group to which S-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 S-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 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. If you want to manage data encryption, use LDEVs with the Enabled or Disabled status.

If the LDEV is an external volume or migration volume, a hyphen (-) is displayed.

For DP-VOLs, the pool to which an 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 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.
Virtual Storage Machine
The model type and serial number of the virtual storage machine to which the S-VOL belongs.
Virtual LDEV ID
The identification number of the S-VOL’s virtual LDEV.
Virtual Device Name
The name of the S-VOL’s virtual device, in a combined format of "virtual emulation type", "number of virtual LUSE volumes", and "virtual CVS attribute". Each of these three items is displayed only if it is specified. If none of them are specified, a blank is displayed.
Virtual SSID
The virtual SSID of the S-VOL. If no virtual SSID is specified, a blank is displayed.

Pool Name (ID)

The pool name and identification number.

Pool Encryption

The pool's encryption information.

Enabled
A pool was created by the pool volume for which encryption is enabled.
Disabled
A pool was created by the pool volume for which encryption is disabled.
Mixed
A pool 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.

For pools created in external volumes, or blocked pools, a hyphen (-) is displayed.

CTG ID

The consistency group identification number.

Mirror Unit

The mirror unit number.

Cascade

Indicates whether a cascaded pair can be created.

Enabled
Cascaded pairs can be created.
Disabled
Cascaded pairs cannot be created.
Thin Image Advanced

Indicates whether the pair is a Thin Image pair that uses DRS-VOLs.

Yes
Thin Image pair that uses DRS-VOLs
No
Not a Thin Image pair that uses DRS-VOLs

Diff Compare Volume

The LDEV ID of the diff compare volume.

Type

The pair type.

Snapshot
A pair with the snapshot attribute.
Clone
A pair with the clone attribute or diff clone attribute. Thin Image using DRS-VOLs does not support cloning.
In the TI Pairs window, if Diff Compare Volume displays the LDEV ID, the diff clone attribute is set for the pair. If Diff Compare Volume displays a hyphen (-), the clone attribute is set for the pair.

Topology ID

The topology ID, which indicates the layer of the pair based on the mirror unit. The topology ID consists of the LDEV ID of the root volume and the mirror unit number.

Layer

The layer of the pair based on the root volume.

Create TI Pairs button

Click to open the Create TI Pairs window. Thin Image that uses DRS-VOLs does not support the Create TI Pairs window.

Split Pairs button

Click to open the Split Pairs window.

Resync Pairs button

Click to open the Resync Pairs window.

More Actions

Click to view a list of tasks you can perform.

Options:

Assign Secondary Volumes
Click to open the Assign Secondary Volumes window.
Remove Secondary Volumes
Click to open the Remove Secondary Volumes window.
Delete Pairs
Click to open the Delete Pairs window.
View Pair Synchronization Rate
Click to open the View Pair Synchronization Rate window.
View Pair Properties
Click to open the View Pair Properties window.
Export
Click to open the dialog from which you can download table information to a file.