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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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ssdc show mem

ssdc show mem

Function

The ssdc show mem command is used to query the reserved memory of SmartCache on the current controller.

Format

ssdc show mem

Parameters

None

Views

Diagnostic view

Usage Guidelines

None

Example

Query the reserved memory of SmartCache on the current controller.

 admin:/diagnose>ssdc show mem 
Page Pool Info:  
maxPageNum(spec) : 2273280 
maxPageNum(running) : 2273280 
totalPageNum : 0 
maxBitMapPageNum : 310 
usedBitMapPageNum : 2 
maxMetaPageNum : 2272970 
metatotalPageNum : 2519 
metaFreePageNum : 39 
lockFreePageNum : 0 
unlockFreePageNum : 39 
lowFreePageNum : 20 
midFreePageNum : 40 
highFreePageNum : 60 
forbidStartJiff : 18446744073709551615 
isBgRunning : FALSE 
Used Page Info:  
|type | freeUnitPageNum| noFreeUnitPageNum| unitSize| unitNumPerPage| totalUnitNum| freeUnitNum| lowLevel| midLevel| highLevel| 
|BlockSet | 73| 1002| 280| 14| 15050| 206| 64| 128| 192| 
|SSDExtent | 2| 40| 368| 11| 462| 14| 2| 4| 6| 
Uint quota Info:  
|subPtId | validExtNum| allocExtNum| validBlockSetNum| allocBlockSetNum| 
|0 | 462| 448| 15050| 14844| 
|1 | 0| 0| 0| 0| 
|2 | 0| 0| 0| 0| 
|3 | 0| 0| 0| 0| 
|4 | 0| 0| 0| 0| 
|5 | 0| 0| 0| 0| 
|6 | 0| 0| 0| 0| 
|7 | 0| 0| 0| 0| 
|8 | 0| 0| 0| 0|

System Response

The following table describes the parameter meanings.

Parameter

Meaning

maxPageNum(spec)

Number of reserved memory pages in SmartCache (specifications).

totalPageNum

Total number of memory pages in SmartCache.

maxPageNum(running)

Number of reserved memory pages in SmartCache (running data).

maxBitMapPageNum

Number of reserved bitmap memory pages.

usedBitMapPageNum

Number of used bitmap memory pages.

maxMetaPageNum

Number of reserved metadata memory pages.

metatotalPageNum

Number of metadata memory pages that are allocated in the system.

metaFreePageNum

Number of free metadata memory pages.

lockFreePageNum

Number of free metadata memory pages that have been locked.

unlockFreePageNum

Number of free metadata memory pages that have been unlocked.

lowFreePageNum

Low watermark of free metadata memory pages.

midFreePageNum

Medium watermark of free metadata memory pages.

highFreePageNum

High watermark of free metadata memory pages.

forbidStartJiff

Number of Jiffs that correspond to the period in which memory cannot be applied for.

isBgRunning

Memory allocation and reclamation tasks.

type

Information about the memory pages used by BlockSet or extents.

freeUnitPageNum

Number of free block memory pages.

noFreeUnitPageNum

Number of used block memory pages.

unitSize

Block size.

unitNumPerPage

Number of blocks on a memory page.

totalUnitNum

Number of all blocks.

freeUnitNum

Number of free blocks.

lowLevel

Low watermark of blocks.

midLevel

Medium watermark of blocks.

highLevel

High watermark of blocks.

subPtId

ID of a sub-partition.

validExtNum

Number of valid extents in a sub-partition.

allocExtNum

Number of allocated extents in a subpartition.

validBlockSetNum

Number of valid BlockSets.

allocBlockSetNum

Number of allocated BlockSets.

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Updated: 2019-07-12

Document ID: EDOC1000138389

Views: 487941

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