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Advanced O&M Command Reference

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 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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show pair log_ctrl

show pair log_ctrl


The show pair log_ctrl command is used to query the number of concurrent dual-write I/Os and waiting I/Os of a pair module.


show pair log_ctrl [ controller=? ]






Controller ID.

The value is in the format of "XA" or "XB" or "XC" or "XD", where the "X" is an integer ranging from 0 to 3, for example: "0A", "1C".


Developer view

Usage Guidelines

The command is executed on the local controller by default.


Querying the number of concurrent dual-write I/Os and waiting I/Os of the current pair module.

developer:/>show pair log_ctrl 
Total Count  Current Count  Object ID  Logic Address  Length  Operate Code  Flying Count  Code Flag        
  -----------  -------------  ---------  -------------  ------  ------------  ------------  -------------- 
  85           0              14         497568         1       320962560     1             PAIR_TYPE_NONE 
  85           0              12         497957         1       320962560  1             PAIR_TYPE_NONE 
  85           0              13         497945         1       320962560     1             PAIR_TYPE_CLN 
  85           0              13         497948         1       320962560     1             PAIR_TYPE_CLN 
  85           0              13         497952         1       320962560     1             PAIR_TYPE_CLN 
  85           0              13         497947         1       320962560     1             PAIR_TYPE_CLN 
  85           0              15         497560         1       320962560     1             PAIR_TYPE_CLN 
  85           0              15         497565         1       320962560     1             PAIR_TYPE_CLN

System Response

The following table describes the parameter meanings.



Total Count

Maximum number of dual-write I/Os supported by the system.

Current Count

Number of available concurrent dual-write I/Os.

Object ID

ID of the accessed object.

Logic Address

Accessed start sector.


Start sector of access.

Operate Code

Operation code of an I/O.

Flying Count

Count of references.

Code Flag

Operation type of an I/O.

Updated: 2019-07-12

Document ID: EDOC1000138381

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