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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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cmm show mem

cmm show mem

Function

The cmm show mem command is used to view basic information about memory managed by the CMM module and memory contents.

Format

cmm show mem

cmm show mem usage

cmm show mem usage kdump

Parameters

None

Views

Diagnostic view

Usage Guidelines

None

Example

  • View basic information about memory managed by the CMM module.
    admin:/diagnose>cmm show mem 
    node  0 cpu set              : 12 (0-11) 
    node  0 memory range       0 : 0xffff880138290000 ~ 0xffff880c47d70000 (  44G  250M  896K) 
    node  0 total size           : 0xb0fae0000 (  44G  250M  896K) 
    CMM total size: 0xb0fae0000 (  44G  250M  896K)
  • View the usage of memory managed by the CMM module.
    admin:/diagnose>cmm show mem usage 
    Mem usage of Node  0 Seg  0 
    ------------------------------------------------------------- 
    Addr ffff8801a44a4000 ~ ffff8801a8004000 (     3b60000 :                       59M  384K) : CMM Track Ctrl 
    Addr ffff8801a8004000 ~ ffff8801a820c000 (      208000 :                        2M 32K) : Free Area 
    Addr ffff8801a820c000 ~ ffff8801aa7a0000 (     2594000 :                       37M  592K) : CMM Meta(cmm part struct data) 
    Addr ffff8801aa7a0000 ~ ffff8801aa7a4000 (        4000 :                             16K) : CMM Meta(cmm page exp part data) 
    Addr ffff8801aa7a4000 ~ ffff8801aa7ac000 (        8000 :                             32K) : Gloabl ZERO PAGE Ctrl & Data 
    Addr ffff8801aa7ac000 ~ ffff8805807d4000 ( 3d6028000 :                 15G  352M  160K) : USER Part 
    Addr ffff8805807d4000 ~ ffff8805a5388000 ( 24bb4000 :                      587M  720K) : Global PAGE Ctrl 
    Addr ffff8805a5388000 ~ ffff88104dd40000 ( aa89b8000 :                 42G  649M  736K) : Global PAGE Data 
    Addr ffff88104dd40000 ~ ffff881073540000 ( 25800000 :                            600M) : Global DYNC Pool 
    Addr ffff881073540000 ~ ffff881073578000 (       38000 :                            224K) : Free Area 
    Addr ffff881073578000 ~ ffff881073584000 (        c000 :                             48K) : CMM Meta(dync part management) 
    Addr ffff881073584000 ~ ffff88107d984000 (     a400000 :                            164M) : CMM Meta(cmm alloc/free hist entry area) 
    Addr ffff88107d984000 ~ ffff88107d9b4000 (       30000 :                            192K) : CMM Meta(cmm page lock pool) 
    Addr ffff88107d9b4000 ~ ffff88107d9b8000 (        4000 :                             16K) : CMM Meta(cmm error record area) 
    Addr ffff88107d9b8000 ~ ffff88107e9b8000 (     1000000 :                             16M) : CMM Meta(log data area) 
    Addr ffff88107e9b8000 ~ ffff88107e9bc000 (        4000 :                             16K) : CMM Meta(log ctrl) 
    Addr ffff88107e9bc000 ~ ffff88107f474000 (      ab8000 :                       10M  736K) : CMM Meta(cmm stat info area) 
    Addr ffff88107f474000 ~ ffff88107fefc000 (      a88000 :                       10M  544K) : Rsvd Memory 
    Addr ffff88107fefc000 ~ ffff88107fffc000 (      100000 :                              1M) : CMM Meta(cmm manager meta data)
  • View the physical address and size of the CMM KDUMP.
    admin:/diagnose>cmm show mem usage kdump 
    0x138290000-0x4a24000 
    0xc3bd9c000-0xb44c000 
    0xc47c70000-0x100000 
    0x13ccb4000-0x8000 
    0x429d78000-0x16d64000 
    0xc471e8000-0xa88000 
    0x13ccbc000-0x2ed0bc000 
    0xbfbd80000-0x40000000 
    0x440adc000-0x7bb2a4000

System Response

The following table describes the parameter meanings.

Parameter

Meaning

node 0 cpu set

CPU set of NUMA node 0.

node 0 memory range 0

Memory range of NUMA node 0.

node 0 total size

Memory size of NUMA node 0.

CMM total size

Total size of memory managed by the CMM module.

Mem usage of Node 0 Seg 0

Usage of memory segment 0 of NUMA node 0.

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Updated: 2019-07-12

Document ID: EDOC1000138389

Views: 488750

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