Hitachi Logical Block Storage Nodes implement multi tenancy by limiting what resources each tenant has access to on a physical block storage device shared with other tenants.
The Hitachi Logical Block Storage Node Wizard is used by storage administrators to create logical views of a physical storage device, so that multiple tenants can use a common device without interfering with each other's resources. About multi-tenancy for Hitachi block storage describes how Protector implements this arrangement.
Note: A Physical Block node must be created using the Hitachi Block Device Node Wizard before any Logical Block nodes can be created on it.
Figure. Hitachi Logical Block Wizard - Specify Node name
| Control | Description |
|---|---|
| Node Name | Enter a name for the Logical Block node. |
| Tags | Add the tags to be associated with the object being created. |
| Add to access control resource group | Check this box if you want to add it to a different resource group. |
| Resource Group | Type the name of the resource group or select one from the drop down list. |
Figure. Hitachi Logical Block Wizard - Allocate node to Access Control Resource Group
| Control | Description |
|---|---|
| Resource Groups | All nodes are automatically allocated to the 'default' RBAC resource group. Select the additional resource group(s), from those listed, to which this node will be allocated for the purposes of RBAC. Allocation to resource groups can also be done via the Access Control Resource Groups Inventory. |
Figure. Hitachi Logical Block Wizard - Select Hitachi Block Device
| Control | Description |
|---|---|
| Hitachi Block Device Node | Enter or select the name of the Physical Block node on which the Logical Block node will be based . |
Figure. Hitachi Logical Block Wizard - Specify LDEV Provisioning Range
| Control | Description |
|---|---|
| LDEV Range | Specify the LDEV range on the physical storage device that will be made available by this logical storage device for provisioning S-VOLs. Note:
All replication and snapshot S-VOLs must be created using free LDEV IDs that are mapped to the meta_resource group, and have virtual LDEV IDs matching their corresponding physical LDEV IDs. For fully provisioned snapshots and all replications, this applies to the operation that creates that snapshot or replication. For floating device snapshots and snapshots mounted using cascade mode, this applies to the mount or restore operation. For fully provisioned snapshots mounted using cascade mode, this applies both to the operation that creates that snapshot and to the mount or restore operation. If an operation tries to create one or more LDEVs, that operation will fail if there are not enough free LDEV IDs that meet the above conditions. |
Figure. Hitachi Logical Block Wizard - Specify Primary LDEV accessible to this device
Specifies the P-VOL(s) on the physical block device that will be available to this logical block device for snapshotting or replication. LDEVs can be specified by name, range and host group.
Note: This information is optional. If nothing is specified here, then no P-VOLs will be available for snapshotting or replicating on this logical block device.
| Control | Description |
|---|---|
 Edit |
Enabled only if one Primary LDEV is selected. The Specify Primary LDEVs filter page of the wizard (see below) is displayed to enable an LDEV Filter to be added. |
 Delete |
Enabled only if one or more LDEV Filters are selected. Deletes the LDEV Filter(s) from the list. |
 Add |
Adds a new LDEV Filter to the list. The Specify Primary LDEVs filter page of the wizard (see below) is displayed to enable an LDEV Filter to be added. |
| Existing LDEV Filter(s) | Lists the LDEV Filter(s) that will be used. |
Figure. Hitachi Logical Block Wizard - Specify Primary LDEVs filter
Specify one or more of the following parameters to identify the Primary LDEV(s):Note: The terms entered here are logically ANDed together, so an LDEV will only be selected if it matches the Name Pattern AND ID Range AND Host Group ID.
| Control | Description |
|---|---|
| LDEV Name Pattern | Enter a regular expression (see Basic regular expressions) to identify matching Primary LDEV Names that will be made available on this logical block device. |
| LDEV ID Range | Enter the range of the Primary LDEV IDs that will be made available on this logical block device. |
| Host Group ID | Enter a Host Group identifier. Tip: Host Group ID is normally used alone rather than in combination with the other filter terms presented here.
|
Figure. Hitachi Logical Block Wizard - Specify ports used for provisioning
Note: This information is optional. Protector creates dummy Host Groups for its own processing needs. If nothing is specified here, then Protector will use any available port when creating these dummy Host Groups.
Tip: Use this list to restrict Protector to using LUN allocations on designated ports only.
| Control | Description |
|---|---|
| Edit |
Enabled only if one provisioning port is selected. The Specify Port page of the wizard (see below) is displayed to enable a port to be edited. |
| Delete |
Enabled only if one or more provisioning ports are selected. Deletes the port(s) from the list. |
| Add |
Adds a new provisioning port for use by Protector to the list. The Specify Port page of the wizard (see below) is displayed to enable a port to be added. |
| Provisioning Port(s) | Lists the provisioning ports that will be used. |
Figure. Hitachi Logical Block Wizard - Specify Port
| Control | Description |
|---|---|
| Port | Specify a port that can be used by Protector for its own processing needs. Enter a port identifier in the following format: CLc-s where:
|
Figure. Hitachi Logical Block Wizard - Specify Journals accessible to this device
Note: This information is optional. If nothing is specified here, then no source or destination Journals will be available for Universal Replicator on this logical block device.
| Control | Description |
|---|---|
| Edit |
Enabled only if one Journal Range is selected. The Specify Journal range page of the wizard (see below) is displayed to enable a journal range to be added. |
| Delete |
Enabled only if one or more Journal Ranges are selected. Deletes the Journal Range(s) from the list. |
| Add |
Adds a new Journal Range to the list. The Specify Journal range page of the wizard (see below) is displayed to enable a Journal Range to be added. |
| Journal Ranges | The Journal Range to be used. |
Figure. Hitachi Logical Block Wizard - Specify Journal range
| Control | Description |
|---|---|
| Journal ID Range | Enter the Journal ID range that will be made available on this logical block device. |
Figure. Hitachi Logical Block Wizard - Specify Host Groups accessible to this device
Note: This information is optional. If nothing is specified here, then no Host Groups will be available on this logical block device for:
- Mounting (see Hitachi Block Snapshot or Replication Mount Wizard and Hitachi Block Mount Configuration Wizard).
- Specifying GAD cross-path replication secondary Host Groups (see Hitachi Block Replication Configuration Wizard).
| Control | Description |
|---|---|
| Edit |
Enabled only if one Host Group is selected. The Specify Host Group Filter page of the wizard (see below) is displayed to enable a Host Group to be added. |
| Delete |
Enabled only if one or more Host Group Filters are selected. Deletes the Host Group Filter(s) from the list. |
| Add |
Adds a new Host Group Filter to the list. The Specify Host Group Filter page of the wizard (see below) is displayed to enable a Host Group Filter to be added. |
| Host Group Filter(s) | The Host Group Filter to be used. |
Figure. Hitachi Logical Block Wizard - Specify Host Group filter
Specify one or more of the following parameters to identify the Host Groups:Note: The terms entered here are logically ANDed together, so a Host Group will only be selected if it matches the Name Pattern AND ID Range AND Port ID.
| Control | Description |
|---|---|
| Host Group Name Pattern | Enter a regular expression (see Basic regular expressions) to identify matching Host Group Names. |
| Host Group ID range | Enter the lower and upper limit of the Host Group ID range to use. |
| Port ID | Enter the port identifier in the following format: CLC-S where:
|
Figure. Hitachi Logical Block Wizard - Specify Pools accessible to this device
Note: This information is optional. If nothing is specified here, then no Pools will be available on this logical block device for creating snapshots or replications.
| Control | Description |
|---|---|
| Edit |
Enabled only if one Pool Filter is selected. The Specify Pool filter page of the wizard (see below) is displayed to enable a Pool Filter to be added. |
| Delete |
Enabled only if one or more Pool Filters are selected. Deletes the Pool Filter(s) from the list. |
| Add |
Adds a new Pool Filter to the list. The Specify Pool filter page of the wizard (see below) is displayed to enable a Pool Filter to be added. |
| Existing Pool Filter | The Pool Filter(s) to be used. |
Figure. Hitachi Logical Block Wizard - Specify Pool filter
Specify one or more of the following parameters to identify the Pools:Note: The terms entered here are logically ANDed together, so a Pool will only be selected if it matches the Name Pattern AND ID Range.
| Control | Description |
|---|---|
| Pool Name Pattern | Enter a regular expression (see Basic regular expressions) to identify matching Pool Names. |
| Pool ID range | Enter the Pool ID range to use. |
Figure. Hitachi Logical Block Wizard - Summary
| Control | Description |
|---|---|
| Summary | Summary of the settings entered. |