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Advanced O&M Command Reference

OceanStor 5000, 5000F, 6000, and 6000F V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5500 V5, 5600 V5, 5800 V5, 6800 V5, 5300F V5, 5500F V5, 5600F V5, 5800F V5, and 6800F V5. 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.
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cache show mirror

cache show mirror

Function

The cache show mirror command is used to view information about the mirror cache.

Format

cache show mirror

Parameters

None

Views

Diagnostic view

Usage Guidelines

None

Example

View information about the mirror cache.


admin:/diagnose>cache show mirror 
  Volume mirror write wait num  :  0 
  Stripe mirror write wait num  :  0 
  Volume mirror read  wait num  :  0 
  Stripe mirror read  wait num  :  0 
  Other  mirror wait num        :  0 
  Retry  mirror num             :  0 

Force mirror chunk num        :  0 
  Force mirror page  num(volume):  0 
  Force mirror page  num(stripe):  0 
  Force mirror io num(volume):  0 
  Force mirror io num(stripe):  0 
Volume force mirror wait  num :  0 
  Stripe force mirror wait  num :  0 
Force mirror task  num        :  4 
  Force mirror active task num  :  0 
Mirror req page num        : 0 
  Mirror req remote page num  : 0 
  Mirror req destage remote page num        : 0 
  Mirror req stripe remote page num        : 0 
Task [0] is (inactive) in Thread [0]. 
  Task [1] is (inactive) in Thread [1]. 
  Task [2] is (inactive) in Thread [2]. 
  Task [3] is (inactive) in Thread [3]. 
  vnodeid             vnodeValid          mirrorid            sendCnt             recvCnt              
0                   0                   1                   0                   0                    
1                   0                   1                   0                   0                    
2                   0                   65535               0                   0                    
3                   0                   65535               0                   0                    
4                   0                   65535               0                   0                    
5                   0                   65535               0                   0                    
6                   0                   65535               0                   0                    
7                   0                   65535               0                   0                    
8                   0                   65535               0                   0                    
9                   0                   65535               0                   0                    
10                  0                   65535               0                   0                    
11                  0                   65535               0                   0                    
12                  0                   65535               0                   0                    
13                  0                   65535               0                   0                    
14                  0                   65535               0                   0                    
15                  0                   65535            0                   0                    
mirror del count : 0  
mirror del count : 0  
Local version Idx:2240020738 

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Volume mirror write wait num

Number of waiting write REQs in layer 1 cache mirror.

Stripe mirror write wait num

Number of waiting write REQs in layer 2 cache mirror.

Volume mirror read wait num

Number of waiting read REQs in layer 1 cache mirror.

Stripe mirror read wait num

Number of waiting read REQs in layer 2 cache mirror.

Other mirror wait num

Number of waiting requests in other mirrors.

Retry mirror num

Number of retried requests in the cache mirror.

Force mirror chunk num

Number of chunks in the cache forcible mirror.

Force mirror page num(volume)

Number of pages in layer 1 cache forcible mirror.

Force mirror page num(stripe)

Number of pages in layer 2 cache forcible mirror.

Force mirror io num(volume)

Number of I/Os in layer 1 cache forcible mirror.

Force mirror io num(stripe)

Number of I/Os in layer 2 cache forcible mirror.

Volume force mirror wait num

Number of waiting REQs in layer 1 cache forcible mirror.

Stripe force mirror wait num

Number of waiting REQs in layer 2 cache forcible mirror.

Force mirror task num

Number of cache forcible mirror tasks.

Force mirror active task num

Number of cache forcible mirror activation tasks.

Mirror req page num

Number of REQ pages in the cache mirror.

Mirror req remote page num

Number of remote REQ pages in the cache mirror.

Mirror req destage remote page num

Number of REQs for remote pages written to the cache.

Mirror req stripe remote page num

Number of REQs for remote pages in the layer 2 cache mirror.

vnodeid

ID of the virtual node.

vnodeValid

Validity status of the virtual node.

mirrorid

Mirror node ID.

sendCnt

Number of sent REQs.

recvCnt

Number of received REQs.

mirror del count

Number of deleted REQs in the mirror.

Local version Idx

Version of the local controller.

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Updated: 2019-07-11

Document ID: EDOC1000181619

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