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Advanced O&M Command Reference

OceanStor 2800 V5 V500R007

This document is applicable to OceanStor 2800 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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cache.sh

cache.sh

Function

The cache.sh command is used to run commands related to the Cache module.

Format

cache.sh { -h | -a | showcoffer | clearcoffer | showdirtydata}

Parameters

Parameter

Description

Value

-h Displays the help information.

-

-a Displays functions of each subcommand of the Cache module.

-

showcoffer Displays status of the coffer.

-

clearcoffer Clears data in the coffer.

-

showdirtydata Shows cache dirty data distribution.

-

Modes

Minisystem mode

Usage Guidelines

  • cache.sh showcoffer: displays status of the coffer.
  • cache.sh clearcoffer: clears data in the coffer.
  • cache.sh showdirtydata: shows cache dirty data distribution.
When the data is written to the coffer, do not run the "cache.sh clearcoffer" command. Otherwise, coffer data may be lost.

Example

  • Display functions of each subcommand of the Cache module.

    Storage: minisystem> cache.sh -a
    cache.sh showcoffer                       : show coffer information.
    cache.sh clearcoffer                      : clear cache coffer.
    cache.sh showdirtydata                    : show cache dirty data distribution.
  • Display status of the coffer.

    storage: minisystem> cache.sh showcoffer
    ibc_os_hs:/diagnose>cache show coffer
    please wait......
    coffer local info:
        state    : 0
        ctrl ID  : 514
        sys sn   : 144680345676153346
    coffer mirror info:
        state    : 0
        ctrl ID  : 514
        sys sn   : 144680345676153346
    data time: No data in coffer or got coffer state error.
  • Clear data in the coffer.

    Storage: minisystem> cache.sh clearcoffer
    admin:/diagnose>cache clear coffer
    please wait......
    clean coffer success.
  • Show cache dirty data distribution.

     Storage: minisystem> cache.sh showdirtydata
    admin:/diagnose>cache show obj v cnt wc
    Total obj num(44): 
                                   ----io cnt----  -------------page cnt----------------   ---pageunit cnt---  ------chunk cnt------------------  --quota cnt-- --timepoint cnt--
     volumeid            volType   io   mirrorCnt  clean    dirty    parity    faultdirty  readpu   writepu    read     write     fault    dsging    dirty         cnt         
     --------            -------   --   ---------  -----    -----    ------    ----------  ------   ------     ----     -----     -----    -----     -----         ---         
     0x0                 thick     16   0          420109   7654     0         0           26790    570        6698     143       0        143       7654          1    
     0x1                 thick     0    0          1410     7788     0         0           589      507        158      144       0        0         7788          1    
     0x2                 thick     16   0          484394   4009     0         0           30568    333        7643     84        0        84        4009          1    
     0x3                 thick     0    0          4100     3688     0         0           501      249        138      84        0        0         3688          1    
     0x4                 thick     16   0          409828   15112    0         0           26601    997        6651     250       0        250       15112         1    
     0x5                 thick     0    0          1372     6258     0         0           489      407        131      112       0        0         6258          1    
     0x6                 thick     16   0          438038   3953     0         0           27671    303        6918     76        0        76        3953          1    
     0x7                 thick     0    0          5138     8296     0         0           847      530        223      152       0        0         8296          1    
     0x8                 thick     16   0          456841   6427     0         0           29002    458        7251     115       0        115       6427          1    
     0x9                 thick     0    0          3523     9664     0         0           831      617        215      163       0        0         9664          1    
    Find Volume cache base num(10): 
    admin:/diagnose>exit
    admin:/diagnose>cache show obj s cnt wc
    Total obj num(44): 
                                   ----io cnt----  -------------page cnt----------------   ---pageunit cnt---  ------chunk cnt------------------  --quota cnt-- --timepoint cnt--
     volumeid            volType   io   mirrorCnt  clean    dirty    parity    faultdirty  readpu   writepu    read     write     fault    dsging    dirty         cnt         
     --------            -------   --   ---------  -----    -----    ------    ----------  ------   ------     ----     -----     -----    -----     -----         ---         
     0x0                 thick     33   42         4608     17337    1888      0           1575     1619       202      166       0        59        17337         0    
     0x1                 thick     0    0          896      331780   0         0           20803    25943      2605     2598      0        0         331780        0    
     0x2                 thick     44   61         2432     13933    2624      0           1265     1401       163      144       0        82        13933         0    
     0x3                 thick     0    0          1536     137878   0         0           8725     10793      1094     1082      0        0         137878        0    
     0x4                 thick     74   155        6528     5411     1088      0           1662     1576       212      161       0        34        5411          0    
     0x5                 thick     0    0          3200     126686   32        0           8129     9921       1021     996       0        0         126686        0    
     0x6                 thick     41   57         3712     10936    1728      0           1112     1110       144      115       0        54        10936         0    
     0x7                 thick     0    0          256      357104   4576      0           22344    27916      2796     2794      0        0         357104        0    
     0x8                 thick     62   120        2176     9177     1056      0           1325     1497       171      154       0        33        9177          0    
     0x9                 thick     0    0          128      285671   3616      0           17872    22340      2239     2238      0        0         285671        0    
     0x1000000100000000  pool_meta 0    0          76118    96       0         0           4777     11         4777     11        0        3         96            0    
     0x1000000300000002  pool_meta 0    0          8200     96       0         0           519      6          65       1         0        0         96            0    
     0x1000000300000103  pool_meta 0    0          8160     40       0         0           513      3          65       1         0        0         40            0    
     0x100000030000000e  pool_meta 0    0          256      1        0         0           17       1          3        1         0        0         1             0    
     0x100000030000010f  pool_meta 0    0          256      1        0         0           17       1          3        1         0        0         1             0    
    Find Stripe cache base num(15):

System Response

The following table describes the parameter meanings.

Parameter

Meaning

state

Coffer status.

ctrl ID

ID of a controller.

sys sn

System serial number.

data time

Time when data is written into the coffer.

volumeid

Volume ID.

volType

Volume type.

io

Count of cache read/write I/Os.

dirty

Dirty page count.

clean

Clean page count.

mirrorCnt

Mirror I/O count.

faultdirty

Faulty dirty page count.

read

Read chunk count.

write

Write chunk count.

dsg

Cache flushing chunk count.

quota cnt

Dirty page quota count.

fault

Faulty chunk count.

writepu

Write pageunit count.

readpu

Read pageunit count.

parity

Parity page count.

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Updated: 2020-01-17

Document ID: EDOC1000181575

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