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Advanced O&M Command Reference

OceanStor 18000 and 18000F V5 Series V500R007

This document is applicable to OceanStor 18500 V5, 18800 V5, 18500F V5, and 18800F V5. Based on the CLI, this document describes how to use various commands classified by functions and 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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spaceflow showcount

spaceflow showcount


The spaceflow showcount command is used to show statistics on I/Os related to the flow control.


spaceflow show




Diagnostic view

Usage Guidelines



Show statistics on I/Os related to the flow control.

admin:/diagnose>spaceflow showcount 
SpaceFlow count info: 
           name  count            callb            bad 
       phase1  333793363        333793363        0 
         phase2  0                0                0 
         phase4  92               92               0 
       checkDmn  303465           303465           0 
          event  0                0                0 
 free arrive  0                0                0 
     max arrive  69               0                0 
grain max arrive 0                0                0 
 cacheLe arrive  0                0                0 
 metaPer arrive  0                0                0 
Flowclose        68               0                0 
Through          0                0                0 
FiThrough        0                0                0 
BeginTransfer 0                0                0 
Push             23               0                0 
EndThrough       0                0                0

System Response

The following table describes the parameter meanings.




Phase 1 flow control.


Phase 2 flow control.


Phase 4 flow control.


DMN resource check.


Flow control event.

free arrive

Count of closing transactions when the release water level is reached.

max arrive

Count of closing transactions when the dirty data water level is reached.

grain max arrive

Count of closing transactions when the grain water level is reached.

cacheLe arrive

Count of closing transactions when the cache water level is reached.

metaPer arrive

Count of closing transactions when the metadata water level is reached.


Count of applying the transaction again after flow control.


Count of transactions that are in write through mode.


Count of transactions that are switched from the write back mode to write through mode.


Count of forcibly closing the current transaction.


Count of closing the current transaction during forcible disk flushing.


Count of forcibly closing the specific transaction.

Updated: 2019-07-11

Document ID: EDOC1000181602

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