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Advanced O&M Command Reference

OceanStor 18000 V3 Series V300R006

This document is applicable to OceanStor 18500 V3 and 18800 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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cache show waitalloc

cache show waitalloc

Function

The cache show waitalloc command is used to view the number of REQs waiting for being allocated in a cache.

Format

cache show waitalloc all

Parameters

Parameter

Description

Value

all

All requests.

-

Views

Diagnostic view

Usage Guidelines

None

Example

View resource allocation requests.

admin:/diagnose>cache show waitalloc all 
waitalloc hang: 
------------------------------ 
req:       ptt 0     base 0     retrytype -1462417488 index 0     islun 0     iod 0     
req:       ptt 0     base 1     retrytype 0     index 0     islun 0     iod 0     
req:       ptt 0     base 2     retrytype 956715 index 0     islun 0     iod 0     
------------------------------ 
poss hang: 
------------------------------ 
hang cachebase num:0 
------------------------------ 
send mirror hang: 
------------------------------ 
  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 hang: 
------------------------------ 
------------------------------

System Response

The following table describes the parameter meanings.

Parameter

Meaning

waitalloc hang

Suspended requests waiting to be allocated.

req

Request.

ptt

Internal partition in the cache.

Volume mirror read wait num

Number of read requests in the layer 1 cache mirror.

base

Cache object.

islun

Whether the last retried one is a LUN request.

retrytype

Retry type.

index

Retry request index.

Volume mirror read wait num

Number of read requests in the layer 1 cache mirror.

io

IOD thread number.

poss hang

Number of possessed suspension.

hang cachebase num

Number of suspended cache objects.

send mirror hang

Sent mirror suspension request.

Volume mirror write wait num

Number of write requests in the layer 1 cache mirror.

Stripe mirror write wait num

Number of write requests in the layer 2 cache mirror.

Stripe mirror read wait num

Number of read requests in the layer 2 cache mirror.

Other mirror wait num

Number of requests in other cache mirrors.

Retry mirror num

Number of mirror retry requests.

force mirror hang

Forcible mirror suspension request.

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Updated: 2019-03-30

Document ID: EDOC1000138389

Views: 400527

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