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Basic Storage Service Configuration Guide for Block

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5300 V5, 5500 V5, 5600 V5, 5800 V5, 6800 V5, 5300F V5, 5500F V5, 5600F V5, 5800F V5, 6800F V5, 18500 V5, 18800 V5, 18500F V5, and 18800F V5. It describes the basic storage services and explains how to configure and manage them.
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Viewing LUN Information

Viewing LUN Information

This operation enables you to view the information about all the LUNs on a storage system.

Prerequisites

At least one LUN has been created on the storage system.

Procedure

  1. Log in to DeviceManager.
  2. Choose Provisioning > LUN.
  3. View information about the LUNs in the list.

    NOTE:

    GUIs may vary with product versions and models. The actual GUIs prevail.

    Table 6-8 LUN parameters

    Parameter

    Description

    Setting

    Name

    Name of a LUN.

    [Example]

    LUN001

    ID

    ID of a LUN.

    [Example]

    1

    Health Status

    Health status of a LUN.

    [Example]

    Normal

    Running Status

    Running status of a LUN.

    [Example]

    Online

    Type

    Type of a LUN. The types include:

    • Thick LUN
    • Thin LUN

    [Example]

    Thick LUN

    Use Type

    Use type of a LUN. The use types include:

    • Internal: common LUN created in a local storage device.
    • External: eDevLUN created for taking over a remote LUN.
    • PE LUN: a LUN created for a VVol LUN in VMware software defined storage only. PE LUNs function as I/O demultiplexers to simplify the connection between VMs and VVol LUNs. VM I/Os are sent to the corresponding VVol LUN through a PE LUN.
    • VVol LUN: provides storage space for VMware VMs.

    [Example]

    Internal

    Description

    Description of a LUN.

    [Example]

    -

    Capacity

    Capacity of a LUN, which is specified by a user during LUN creation.

    [Example]

    1.000 GB

    Sectors

    Number of the sectors in a LUN.

    [Example]

    2097152

    Capacity Allocated

    Capacity allocated to a LUN. The capacity includes the data capacity and metadata capacity, but does not include the data protection capacity. The metadata capacity is about 1% of the data capacity and data protection capacity.

    [Example]

    1.187 GB

    Owning Storage Pool

    Storage pool to which a LUN belongs.

    [Example]

    storagepool1

    Mapping

    Mapping status of a LUN, indicating whether a LUN is mapped to a host or not.

    [Example]

    Unmapped

    Data Protection

    Data protection method of a LUN.

    [Example]

    Clone

    WWN

    WWN of a LUN.

    [Example]

    60022a1100037eca45ae3b6100000019

    Remote WWN

    WWN of a remote LUN.

    [Example]

    Takeover LUN WWN

    WWN of the eDevLUN after takeover.

    [Example]

    SmartTier Policy

    Data migration policies, including:

    • Automatic relocation

      This policy automatically relocates data blocks based on their activity levels. Automatic relocation relies on the analysis result from I/O monitoring. Thus I/O monitoring must be enabled and the service monitoring period must be set before automatic relocation.

    • Relocation to high-performance tier

      This policy is recommended for the applications (such as OLTP databases) sensitive to the response time, IOPS, and bandwidth. This policy preferentially promotes data blocks to the high-performance tier and the performance tier. If the capacity of the data blocks to be relocated is larger than the capacity of the high-performance tier (or performance tier), only data blocks with the most activities are promoted to the high performance tier (or the performance tier).

    • Relocation to low-performance tier

      This policy is recommended for applications (such as file sharing) insensitive to performance. This policy preferentially demotes data blocks to the performance tier and the capacity tier, regardless of the activity levels of these data blocks.

    • No relocation

      This policy does not relocate data blocks among storage tiers, and data can be relocated only when the data relocation policy is changed.

    NOTE:

    This parameter is not supported by some product versions or models. The actual GUIs prevail.

    [Example]

    Automatic relocation

    Masquerading Status

    Masquerading status can be:

    • No Masquerading
    • Basic Masquerading

      Applies to eDevLUNs, used for replacing the basic LUN information such as the VID, PID, and LUN WWN.

    • Extended Masquerading

      Applies to eDevLUNs, used for replacing the basic LUN information and extended LUN information such as the SCSI protocol version, owning controller, and working controller.

    • Inherited Masquerading

      Applies to local LUNs, used for inheriting the remote LUN information such as the VID, PID, and SCSI protocol version.

    • Third-party

      Applies to eDevLUNs, used for taking over heterogeneous storage systems from third-party vendors online.

    [Example]

    No Masquerading

    vStore Name

    Name of the vStore to which the LUN belongs.

    [Example]

    vStore001

    vStore ID

    ID of the vStore to which the LUN belongs.

    [Example]

    1

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Updated: 2019-08-30

Document ID: EDOC1000181506

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