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OceanStor UltraPath for vSphere V100R008C50 User Guide 06

This document covers the functions, features, installation, configuration, upgrade, uninstallation, maintenance, troubleshooting, and FAQs of OceanStor UltraPath for vSphere (UltraPath forvSphere). UltraPath for vSphere is the multipathing software developed by HuaweiTechnologies Co., Ltd (Huawei for short). The document aims at helping users to be fully familiar with UltraPath for vSphere and its use.
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Viewing Virtual LUN Information

Viewing Virtual LUN Information

Function

The show vlun command is used to query information about a specified LUN or all LUNs mapped from a storage system to an application server.

Format

show vlun [ -l vlun-id [ -v ] | -a array-id | -t type ]

Parameters

Keyword and Parameter

Description

Default Value

-a array-id

ID of a storage system.

You can run show diskarray without an ID to display all storage system IDs.

None

-l vlun-id

ID of a virtual LUN.

You can run show vlun without an ID to display all virtual LUN IDs.
NOTE:
There are two kinds of values:
  • -l ID: ID of a single virtual LUN.
  • -l ID1,ID2...: IDs of multiple virtual LUNs which are not necessarily related. You can query a maximum of eight virtual LUNs' performance statistics at a time.

None

-v

Viewing path information about a virtual LUN.

NOTE:
Parameter -v views details about a storage LUN only when it is used with parameter -l.

None

-t type

View the virtual LUN information of a specific type. If the -t parameter is not specified, common virtual LUN information will be queried.

Possible values are all, hypermetro, migration, and pe, where:
  • all: all virtual LUNs
  • hypermetro: virtual HyperMetro LUNs
  • migration: virtual migration LUNs
  • pe: PE LUN

None

Level

User root

Usage Guidelines

  • Run show vlun to query information about all common virtual LUNs mounted on the application server.
  • Run show vlun -a array-id to view common virtual LUN information about a specified storage system.
  • Run show vlun -l vlun-id to view information about a specified common virtual LUN.
  • Run show vlun -l vlun-id -v to view details configuration information about a specified common virtual LUN.

Example

  • View information about all common virtual LUNs.
    ~ # esxcli upadm show vlun
    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     Vlun ID                  Disk                      Name                  Lun WWN                  Status Capacity Ctrl(Own/Work)    Array Name       Dev Lun ID
        0     naa.630d17e100b33e3900135b9900000024   hl_luntest   630d17e100b33e3900135b9900000024     Normal  1.00GB        0A/0B       Huawei.Storage       36    
        1     naa.630d17e100b33e3909eae968000000f2  hl_luntest_2  630d17e100b33e3909eae968000000f2     Normal  1.00GB        0A/0B       Huawei.Storage       242   
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    
  • View common virtual LUN information about the storage system whose ID is 0.
    ~ # esxcli upadm show vlun -a 0
    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     Vlun ID                  Disk                      Name                  Lun WWN                  Status Capacity Ctrl(Own/Work)    Array Name       Dev Lun ID
        0     naa.630d17e100b33e3900135b9900000024   hl_luntest   630d17e100b33e3900135b9900000024     Normal  1.00GB        0A/0B       Huawei.Storage       36    
        1     naa.630d17e100b33e3909eae968000000f2  hl_luntest_2  630d17e100b33e3909eae968000000f2     Normal  1.00GB        0A/0B       Huawei.Storage       242   
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  • View details about the common virtual LUN whose ID is 1.
    ~ # esxcli upadm show vlun -l 1
    =======================================================
                      VLUN#1 Information                   
    =======================================================
    Disk              : naa.630d17e100b33e3909eae968000000f2
    Name              : hl_luntest_2
    Status            : Normal
    Capacity          : 1.00GB
    Driver            : Vendor-specific(DEFAULT)
    Product Name      : XSG1            
    Vendor Name       : HUAWEI  
    Owning Controller : 0A
    Working Controller: 0B
    Num of Paths      : 2
    LUN WWN           : 630d17e100b33e3909eae968000000f2
    Array Name        : Huawei.Storage
    Controller 0A
        Path 0 [vmhba33:C0:T2:L2]  : Normal
    Controller 0B
        Path 1 [vmhba33:C0:T0:L2]  : Normal
    Dev Lun ID        : 242
    =======================================================
  • View details configuration information about the common virtual LUN whose ID is 1.
    ~ # esxcli upadm show vlun -l 1 -v
    =======================================================
                      VLUN#1 Information                   
    =======================================================
    Disk              : naa.630d17e100b33e3909eae968000000f2
    Name              : hl_luntest_2
    Status            : Normal
    Capacity          : 1.00GB
    Driver            : Vendor-specific(DEFAULT)
    Product Name      : XSG1            
    Vendor Name       : HUAWEI  
    Owning Controller : 0A
    Working Controller: 0B
    Num of Paths      : 2
    LUN WWN           : 630d17e100b33e3909eae968000000f2
    Array Name        : Huawei.Storage
    Controller 0A
        Path 0 [vmhba33:C0:T2:L2]  : Normal
    Controller 0B
        Path 1 [vmhba33:C0:T0:L2]  : Normal
    Working Mode      : load balancing within controller
    LUN Trespass      : on
    LoadBalance Mode  : min-queue-depth
    Loadbanlance io threshold : 1
    Max io retry timeout      : 1800
    Dev Lun ID        : 242
    =======================================================

System Response

The following table explains some parameters in the command output:

Parameter

Description

Default Value

Disk

Name of the disk that corresponds to the virtual LUN on an ESX system.

None

Name

Name of the virtual LUN.

NOTE:
The name is specified when the LUN is created on its storage array.

None

Status

Status of the virtual LUN. Possible values are as follows:
  • Normal: The virtual LUN is normal.
  • Fault: The virtual LUN is faulty.
  • Degraded: The virtual LUN is degraded.
  • Unavailable: The virtual LUN is unavailable.
NOTE:
  • If the LUN on the array is in Fault state while the virtual LUN on the host is in Available state (viewed by using UltraPath), the virtual LUN can be accessed by the host.
  • If you remap a LUN from the storage array to a host but do not rescan LUNs on the host, the mapping between the LUN on the storage array and the virtual LUN changes and the status of the virtual LUN is Unavailable.

None

Capacity

Capacity of the virtual LUN.

None

Product Name

Model of the storage system.

None

Vendor Name

Vendor of the storage system.

None

Num of Paths

Number of logical paths.

NOTE:
You can only view the information about a maximum of eight paths on one controller.

None

LUN WWN

WWN of the virtual LUN.

None

Dev Lun ID

ID of the storage system LUN corresponding to the virtual LUN.

None

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Updated: 2019-03-06

Document ID: EDOC1000105152

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