Modify Copy Parameters

Overview

This function specifies the threshold for the SDP usage ratio and sets an SDPE.

If the SDP capacity is insufficient during a SnapOPC+ session, an error occurs and the relevant copy session and all the copy sessions that started earlier than the relevant session are stopped. This function is used to change the threshold and the SDPE.

Caution

  • The ETERNUS DX8100 S4 does not support this function.

  • A license must be registered for the Advanced Copy function or the Unified Storage environment is required to use this function.

Note
  • Threshold setting for the SDP

    • Automatically notifying the user when the SDP usage ratio exceeds the threshold can be set. To notify events, specify the notification method in advance. Refer to the [Setup Event Notification] function for details.

    • If the threshold for multiple policies is exceeded at the same time, the storage system notifies of the highest policy level.

    • Notification of the shortage of SDP capacity is sent only once for each policy level. Even if the threshold is exceeded again within the 24 hours from the first notification, the storage system does not report that effect. After 24 hours has passed, the device sends a notification again.

  • SDPE settings

    • The current capacities of the SDPEs and the SDP can be checked. Refer to the [Snap Data Pool] function for details.

    • The maximum SDP capacity is determined by the SDPE. The maximum SDP capacity for each SDPE is described below.

      Note that the maximum SDP capacity varies depending on the maximum physical capacity of the drives in the storage system.

      The Maximum SDP Capacity for Each SDPE

      Model SDPE The maximum SDP capacity

      ETERNUS DX60 S5/DX100 S5/DX200 S5

      		 1 GB 32 TB
      2 GB 64 TB
      4 GB 128 TB

      ETERNUS DX500 S5/DX600 S5

      		 1 GB 64 TB
      2 GB 128 TB
      4 GB 256 TB

      ETERNUS DX900 S5

      ETERNUS DX8900 S4

      		 1 GB 128 TB
      2 GB 256 TB
      4 GB 512 TB

      ETERNUS AF150 S3/AF250 S3

      		 1 GB 32 TB
      2 GB 64 TB
      4 GB 128 TB

      ETERNUS AF650 S3

      		 1 GB 64 TB
      2 GB 128 TB
      4 GB 256 TB

    • When an SDPE is changed during operation, the changed value is applied to the SDPEs for the SDPVs that are created. Note that values of the SDPEs for SDPVs that are already created and being used do not change. Determining the SDPEs before starting operations and not changing the SDPEs once operations start are recommended.

User Privileges

Availability of Executions in the Default Role

Default role Availability of executions
Monitor  
Admin
StorageAdmin
AccountAdmin  
SecurityAdmin  
Maintainer

Refer to User Roles and Policies for details on the policies and roles.

Settings

Specify the threshold for each policy level of the SDP.

Policy of Snap Data Pool

Item Description Setting values

Policy Level 1 (Informational) Threshold

If the usage of SDP exceeds the specified threshold, the storage system notifies that effect as the Policy Level 1 (Informational).

Numeric characters

1 - 97 %

50 % (Default)

Policy Level 2 (Warning) Threshold

If the usage of SDP exceeds the specified threshold, the storage system notifies that effect as the Policy Level 2 (Warning).

Numeric characters

2 - 98 %

70 % (Default)

Policy Level 3 (Error) Threshold

If the usage of SDP exceeds the specified threshold, the storage system notifies that effect as the Policy Level 3 (Error).

Numeric characters

3 - 99 %

99 % (Default)

SDPE Setting

Item Description Setting values

SDPE

Select the SDPE.

1 GB (Default)

2 GB

4 GB

Operating Procedures

Select the threshold for SDP usage ratio and SDPE.

  1. Click [Modify Copy Parameters] in [Action].

  2. Specify the parameters, and click the [Modify] button.

    → A confirmation screen appears.

    Caution

    • If the magnitude relation is not "Threshold for a policy level 1" < "Threshold for policy level 2" < "Threshold for policy level 3", an error screen appears.

  3. Click the [OK] button.

    → The specified copy parameters are registered.

  4. Click the [Done] button to return to the [Snap Data Pool] screen.