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Advanced O&M Command Reference

OceanStor 2000, 5000, and 6000 V3 Series V300R006

This document is applicable to OceanStor 2200 V3, 2600 V3 Video Surveillance Edition, 2600 V3, 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3. 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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cache show iocounter

cache show iocounter

Function

The cache show iocounter command is used to view the counts of common I/Os in caches.

Format

cache show iocounter [diff/difference] [history] [history] [clean]

Parameters

None

Views

Diagnostic view

Usage Guidelines

None

Example

View the counts of common I/Os in caches.

ibc_os_hs:/diagnose>cache show iocounter 
>> Counter <<                                Start       Back Good        Back Bad      Back Retry        Not Back 
                                      ------------ ------------ ------------ ------------ ------------ 
read alloc                      :                0               0               0               0               0 
volume read                     :        146951561       146951467               0               0              94 
volume read through             :                0               0               0               0               0 
volume read disk                :         73733516        73733419               0               0              97 
space read                      :           920341          919909             432               0               0 
space read through              :                0               0               0               0               0 
space read disk                 :             2329            1897             432               0               0 
stripe read                     :        639657050       639656843               0              31             176 
stripe read through             :                0               0               0               0               0 
stripe read disk                :        639085915       639085739               0               0             176 
mirror read peer                :               17              17               0               0               0 
mirror read peer recv           :                0               0               0               0               0 
space write                     :            70168           70155               0              13               0 
space write commit log mission  :            70176           70176               0               0               0 
space write commit log          :          70176           70176               0               0               0 
write alloc                     :                0               0               0               0               0 
volume write                    :          1064960         1064960               0               0               0 
volume write child              :          1064960         1064960               0               0               0 
volume write child alloc quota  :          1105519         1064960               0           40559               0 
volume write child write mirror :          1064960         1064960               0               0               0 
stripe write                    :          4918975         4918975               0               0               0 
stripe write child              :          5074854         5074854               0               0               0 
stripe write child alloc quota  :          5074854         5074854               0               0               0 
stripe write child write mirror :          5074854         5074854               0               0               0 
write dirty parity              :           375594          375562               0              32               0 
chunk write with dsg            :                0               0               0               0               0 
write local chunk               :          6139814         6139814               0               0               0 
write through wait destage      :                0               0               0               0               0 
mirror writevolume              :          1135128         1135119               0               9               0 
mirror writevolume recv         :           579587          579587               0               0               0 
mirror writestripe              :          5074854         5074854               0               0               0 
mirror writestripe recv         :         15940487        15940487               0               0               0 
mirror writestripe quota        :         15940487        15940487               0               0               0 
mirror merger                   :                0               0               0               0               0 
mirror merger recv              :                0               0               0               0               0 
mirror write parity             :           375562          375562               0               0               0 
mirror write parity recv        :           123294          123294               0               0               0 
open cache dnode                :           105055          105055               0               0               0 
rollback write dirty            :                0               0               0               0               0 
rollback write clean            :                0               0               0               0               0 
mir rollback write clean        :                0               0               0               0               0 
mir rollback write clean recv :                0               0               0               0               0 
destage mission                 :           500857          500845               0              12               0 
volume wb destage mission       :           500857          500845               0              12               0 
volume wt destage mission       :                0               0               0               0               0 
volume force destage mission :                0               0               0               0               0 
volume wt fault destage mission :                0               0               0               0               0 
volume destage alloc concurrent :           500845          500845               0               0               0 
volume destage send to volume :           545489          545489               0               0               0 
stripe wb destage mission       :           379097          379097               0               0               0 
stripe wt destage mission       :                0               0               0               0               0 
stripe force destage mission :              615             615               0               0               0 
stripe destage alloc concurrent :                0               0               0               0               0 
stripe destage send to ckg      :                0               0               0               0               0 
space dsg tx                    :            31794           31794               0               0               0 
space dsg to space              :            43484           43484               0               0               0 
space dsg check dmn          :                0               0               0               0               0 
file system mirror delete       :            42468           42468               0               0               0 
file system mirror delete recv  :            38664           38664               0               0               0 
mirror fs send bp               :                0               0               0               0               0 
mirror fs send bp recv          :                0               0               0               0               0 
mirror delete                   :           174099          174099               0               0               0 
mirror delete recv              :           313187          313187               0               0               0 
mirror del clean                :                0               0               0               0               0 
mirror del clean rcv            :                0               0               0               0               0 
mirror del clean exec           :                0               0               0               0               0 
del mir spec data               :             4970            4970               0               0               0 
del mir spec data recv          :             1002            1002               0               0               0 
del spec data                   :             5972            5972               0               0               0 
force mirror                    :                0               0               0               0               0 
force mirror recv               :             2279            2279               0               0               0 
sync obj info                   :                0               0               0               0               0 
sync obj info recv              :                2               2               0               0               0 
mirror recover writehole log :                0               0               0               0               0 
mirror recover writehole log rcv:                0               0               0               0               0 
mirror byte del                 :            11072           11072               0               0               0 
mirror byte del recv            :             1960            1960               0               0               0 
mirror op other                 :                0               0               0               0               0 
mirror op other rcv             :              0               0               0               0               0 
delete smart cache data         :                0               0               0               0               0 
write smart cache data          :                0               0               0               0               0 
read smart cache data           :                0               0               0               0               0 
cover write smart cache data :                0               0               0               0               0 
version negotiate               :                0               0               0               0               0 
version negotiate rcv           :                0               0               0               0               0 
stripe crc dif                  :          4918975         4918975               0               0               0 
stripe lba dif                  :           828751          828751               0               0               0 
recover writehole               :                0               0               0               0               0

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Counter

I/O counter.

Difference

I/O counter.

Counter History

I/O counter.

Start

Count of started I/Os.

Back Good

Count of I/Os for which a success message is returned.

Back Bad

Count of I/Os for which a failure message is returned.

Back Retry

Count of I/Os that are being retried.

Not Back

Count of I/Os for which no message is returned.

Start(diff)

Difference between the count of started I/Os and that of historical I/Os.

Back Good(diff)

Difference between the count of I/Os for which a success message is returned and that of historical I/Os.

Back Bad(diff)

Difference between the count of I/Os for which a failure message is returned and that of historical I/Os.

Back Retry(diff)

Difference between the count of I/Os that are being retried and that of historical I/Os.

Not Back(diff)

Difference between the count of I/Os for which no message is returned and that of historical I/Os.

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Updated: 2019-07-12

Document ID: EDOC1000138402

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