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OceanStor 2600 V3 Storage System V300R005 HyperMetro Feature Guide 06

"This document describes the implementation principles and application scenarios of theHyperMetro feature. Also, it explains how to configure and manage HyperMetro."
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Viewing the HyperMetro Consistency Group Information

Viewing the HyperMetro Consistency Group Information

This operation allows you to view information about consistency groups to monitor the status of consistency groups.

Context

Operating status of consistency groups: The operating status of a consistency group and its HyperMetro pairs must be the same. Only HyperMetro pairs in the Paused or Normal state can be added to consistency groups.

Procedure

  1. Log in to DeviceManager.
  2. Choose Data Protection > HyperMetro > HyperMetro Pair > HyperMetro Consistency Group.
  3. View the HyperMetro consistency group information. Table 3-8 describes related parameters.

    Table 3-8 HyperMetro consistency group parameters

    Parameter

    Description

    Name

    The name of HyperMetro consistency group.

    ID

    The ID of HyperMetro consistency group.

    Health Status

    Indicates whether the consistency group is functioning normally. The values include:

    • Normal: The consistency group is functioning normally.
    • Fault: The consistency group malfunctions or the replication link is down.

    Running Status

    Indicates the consistency group is running properly. The values include:

    • Normal: Consistency group has completed synchronization successfully.
    • To be synchronized: The data of consistency group is inconsistent and need to be synchronized.
    • Paused: Consistency group is in the pause status, and the synchronization is suspended.
    • Synchronizing: Consistency group is synchronizing data.
    • Force Start: Consistency group is forcibly enabled at the local or remote site to manually allow the local or remote site to continue to provide services.
    • Invalid: Consistency group is useless and cannot be restored in this status, except deleting it.

    Local Resource Role

    Whether the local site is prior service site or not. Including Preferred and Non-Preferred.

    Recovery Policy

    A recovery policy determines whether the system automatically synchronizes data after a HyperMetro consistency group fault is rectified.

    • Automatic: The system automatically synchronizes data.
    • Manual: The synchronization operation must be performed manually.

    Speed

    Data replication speed of a HyperMetro consistency group.

    • Low: Data replication takes a relatively long time. This value is applicable to scenarios where the service load is heavy. The speed ranges from 0 MB/s to 5 MB/s.
    • Medium: Data replication takes a relatively short time. This value is applicable to scenarios where the service load is relatively heavy. The speed ranges from 10 MB/s to 20 MB/s.
    • High: Data replication takes a short time. This value is applicable to scenarios where the service load is relatively light. The speed ranges from 50 MB/s to 70 MB/s.
    • Highest: Data replication takes the shortest time. This value is applicable to scenarios where the service load is light. The speed is greater than 100 MB/s.

    Activation Status

    Activation status of site. The value can be Active or Passive.

    Owning HyperMetro Domain

    The HyperMetro domain which the HyperMetro consistency group belongs to.

    Data Synchronization Direction

    The data synchronization direction of all HyperMetro pairs in one HyperMetro consistency group. Including Remote to Local and Local to Remote.

    Isolation Switch

    After the Isolation Switch is turned on, the system will suspend the HyperMetro pair when the difference between the write I/O latency of the two storage arrays is greater than the isolation switch. The storage array with the longer write I/O latency will stop providing services.

    Isolation Threshold (ms)

    Write I/O latency difference between the host and HyperMetro storage arrays.

  4. Click the HyperMetro consistency group you want view, in HyperMetro Pair area, view the HyperMetro pair information. Table 3-9 describes related parameters.

    Table 3-9 HyperMetro pair parameters

    Parameter

    Description

    Local Resource

    Name of a local resource.

    Local Resource ID

    ID of a local resource.

    Remote Resource

    Name of a remote resource.

    Remote Resource ID

    ID of a remote resource.

    Pair ID

    ID of the HyperMetro pair.

    Pair Health Status

    Indicates whether the HyperMetro pair is functioning normally. The values include:

    • Normal: The pair is functioning normally.
    • Fault: The pair malfunctions or the replication link is down.

    Pair Running Status

    Running status of a pair of local and remote resources in a HyperMetro. Possible values can be

    • Normal: HyperMetro pair has completed synchronization successfully.
    • To be synchronized: The data of HyperMetro pair is inconsistent and need to be synchronized.
    • Suspended: HyperMetro pair is in the pause status, and the synchronization is suspended.
    • Synchronizing: HyperMetro pair is synchronizing data.
    • Force Start: HyperMetro pair is forcibly enabled at the local or remote site to manually allow the local or remote site to continue to provide services.
    • Invalid: HyperMetro pair is useless and cannot be restored in this status, except deleting it.

    Time Remaining for Synchronization

    Time required for synchronization to complete.

    NOTE:

    Some product models and file systems do not support this parameter.

    Activation Status

    Activation status of site. The value can be Active or Passive.

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Updated: 2018-09-03

Document ID: EDOC1000106183

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