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Advanced O&M Command Reference

OceanStor 18000 V3 Series V300R006

This document is applicable to OceanStor 18500 V3 and 18800 V3. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.
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devlun showctrl

devlun showctrl

Function

The devlun showctrl command is used to view the working status of a LUN.

Format

devlun showctrl lunid

Parameters

Parameter

Description

Value

lunid

LUN ID.

To obtain the value, run the "show lun general" command.

Views

Diagnostic view

Usage Guidelines

None

Example

View the working status of a LUN.

admin:/diagnose>devlun showctrl 0 

  User Pool ID                                      : 0 
  Disk Pool ID                                      : 0 
  Home Pair ID                                      : 0 
  Work Controller ID                                : 0 
  Owner Controller ID                               : 0 
  Data Volume ID                                    : 0x0 
  Data Volume Index                                 : 0 
  User LUN Size (Sectors)                           : 25165824 
  Initialized Size (Sectors)                        : 25165824 
  Alloc Mode                                        : 2 
  LUN Status                                        : NORMAL        
  LUN Running Status                                : ONLINE 
  LUN DIF Status                                    : FALSE 
  LUN VNode ID                                      : 0 
  LUN VNode ID In Group(GroupId,VNodeId)            : (0,0)(1,2)(2,4)(3,6)(4,8)(5,10)(6,12)(7,14) 
  LUN Alloc Type                                    : FAT        
  Origin LUN ID                                     : 4294967295 
  QosPriority                                       : 0 
  RSS Grain Size (Sectors)                          : 128 
  Grain Size (Sectors)                              : 8192 
  Initialize Tier Policy                            : SSD          
  Dynamic Migrate Policy                            : NONE         
  Is Work Controller                                : TRUE  
  LUN Bst Flag                                      : FALSE 
  LUN Usage Type                                    : BASIC      
  Logic Disk ID                                     : 4294967295 
  Is Check Zero Page                                : FALSE 
  Cache Partition ID                                : 0 
  IO Class ID                                       : 65535 
  Cache Write Policy                                : 1 
  QOS Priority                                      : HOST_LOW           
  Retention Type                                    : READ_WRITE 
  EBS  Jiffies                                      : 0 
  Host Jiffies                                   : 0 
  RSF Read  Feature                                 : On 
  RSF Write Feature                                 : On 
  Inner Read Feature                                : On 
  Inner Write Feature                               : On 
  L1 Pair Read Feature                              : Off 
  L1 Pair Write Feature                             : Off 
  L2 Pair Read Feature                              : Off 
  L2 Pair Write Feature                             : Off 
  LUN Fault Switch                                  : On 
  LUN TUR Status                                    : NORMAL 
  LUN RW bitmap                                     : 0x500f 
  Current Time Point Index                          : 0 
  Current Time Point                                : 1 
  Current Time Point Not Back IOs                   : 1 
  Current Rollback Time Point                       : 18446744073709551615 
  Next Time Point Index                             : 1 
  Next Time Point                                   : 18446744073709551615 
  Next Time Point Not Back IOs                      : 1 
  Time Point Managerment Status                     : NORMAL          
  Time Point Log Id                                 : 504403158265495554 
  Uuid                                            : ac9307f0-ea09-2139-1eff-5a3967de431f 
  Is Node Fault Recover                             : 0 
  Mirror Status                                     : 1 
  Write Status                                      : 1 
  Prefetch Type                                     : 3 
  Prefetch Factor                                   : 0 
  Cache Stg                                         : 768 
  Cache Destage Stg                                 : 16384 
  Req cnt from remote                             : 0 
  Remote req state (1:not wait 2:wait complete)     : 1 
  Disguise Status                                   : 0 
  Is Dst LUN                                        : no 
  Bypass cache                                      : no 
  LunExtendFeature                                  : 0 
  HC stat                                           : 0 
  Current LUN BG TASK NUM                           : 0 
  Current LUN BG TASK FLAG                          : 0 
  LUN StorageType                                : RowLun

System Response

The following table describes the parameter meanings.

Parameter

Meaning

User Pool ID

User pool ID of the LUN.

Disk Pool ID

Disk pool ID of the LUN.

Home Pair ID

Home engine ID.

Work Controller ID

ID of the working controller.

Owner Controller ID

ID of the owning controller.

Data Volume ID

Data volume ID.

Data Volume Index

Index of the volume corresponding to a LUN.

User LUN Size (Sectors)

LUN size.

Initialized Size (Sectors)

Initial capacity.

Alloc Mode

Allocation mode.

LUN Status

Current status.

LUN Running Status

Running status of the LUN.

LUN DIF Status

Whether host I/Os with data integrity field (DIF) are supported.

LUN VNode ID

VNode ID.

LUN VNode ID In Group(GroupId,VNodeId)

VNode ID for each engine.

LUN Alloc Type

LUN type.

Origin LUN ID

ID of the source LUN of a snapshot.

QosPriority

QoS priority.

RSS Grain Size (Sectors)

Chunk size for value-added replication.

Grain Size (Sectors)

Grain size.

Initialize Tier Policy

Initial tier allocation policy.

Dynamic Migrate Policy

Migration policy.

Is Work Controller

Whether the controller is a working controller.

LUN Bst Flag

Bad sector tag bit of a LUN.

LUN Usage Type

LUN usage type.

Logic Disk ID

Logical disk ID corresponding to the eDevlun.

Is Check Zero Page

Whether all-zero data is checked.

Cache Partition ID

ID of the cache partition.

IO Class ID

Background dispatching ID of quality of service (QoS).

Cache Write Policy

Cache write policy configured when LUN data is being destroyed.

QOS Priority

QoS priority.

Retention Type

Worm protection type.

EBS Jiffies

Time of the last EBS I/O.

Host Jiffies

Time of the last host I/O.

RSF Read Feature

Value-added read permission.

RSF Write Feature

Value-added write permission.

Inner Read Feature

Internal I/O read permission.

Inner Write Feature

Internal I/O write permission.

L1 Pair Read Feature

Whether Layer 1 pair needs to process read operations.

L1 Pair Write Feature

Whether Layer 1 pair needs to process write operations.

L2 Pair Read Feature

Whether Layer 2 pair needs to process read operations.

L2 Pair Write Feature

Whether Layer 2 pair needs to process write operations.

LUN Fault Switch

Status of the LUN fault policy.

LUN TUR Status

TUR status of a LUN.

LUN RW bitmap

Status of read and write permissions for a LUN.

Current Time Point Index

Current time point index.

Current Time Point

Current time point.

Current Time Point Not Back IOs

I/O that is not returned at the current time point.

Current Rollback Time Point

Rollback time point.

Next Time Point Index

Next time point index.

Next Time Point

Next time point.

Next Time Point Not Back IOs

I/O that is not returned at the next time point.

Time Point Managerment Status

Status of the time point manager.

Time Point Log Id

ID of time point logs.

Uuid

Universally unique identifier (UUID).

Is Node Fault Recover

Time point log if recovered because of node fault.

Mirror Status

Cache mirror status.

Write Status

Cache write status.

Prefetch Type

Cache prefetch type.

Prefetch Factor

Cache prefetch length.

Cache Stg

Read cache policy.

Cache Destage Stg

Write cache policy.

Req cnt from remote

Count of LUN I/O requests from other engines.

Remote req state (1:not wait 2:wait complete)

Whether the local device is waiting for LUN I/O requests from other engines.

Disguise Status

Disguise status.

Is Dst LUN

Disguise destination LUN or not.

Bypass cache

Bypass Layer 1 cache (valid for online takeover).

LunExtendFeature

Extended attribute.

HC stat

HyperMetro status.

Current LUN BG TASK NUM

Number of background tasks of the LUN.

Current LUN BG TASK FLAG

Status of a background task of the LUN.

LUN StroageType

LUN type.

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Updated: 2019-07-12

Document ID: EDOC1000138389

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