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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 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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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
memstat.sh

memstat.sh

Function

The memstat.sh command is used to query the memory usage of all kernel modules to check whether memory leakage occurs, and query the page usage of a specified kernel module.

Format

memstat.sh -a

memstat.sh -c settraceentry [stacklayer]

memstat.sh -c setmemstatswitch [value]

memstat.sh -h

memstat.sh -c setmodulefilter [midName]

memstat.sh -c showmoduletrace

memstat.sh -c showstatinfo

memstat.sh -c showmemstatswitch

memstat.sh -c showtraceentry

memstat.sh -c showmodulefilter

Parameters

None

Modes

Minisystem mode

Usage Guidelines

The "memstat.sh" command is used to query memory usage of all kernel modules to monitor memory leakage. It provides the following functions:

  • Enable or disable the function of collecting memory statistics.
  • Show the switch value of enabling or disabling memory statistics collection.
  • Show buddy and vmalloc memory occupied by all kernel modules.
  • Set the number of call stack layers to be reserved. When setting the number of call stack layers, disable the function of collecting memory statistics.
  • Show the number of call stack layers.
  • Set a filtering module only from kernel modules in the current system.
  • Show the configured filtering module.
  • Show information about pages and call stacks used by the filtering module.

Example

  • Enable or disable the function of collecting memory statistics.
    Storage: minisystem> memstat.sh -c setmemstatswitch 1 
    DANGER: You are going to perform a danger command.The execution of this command may consume some system memory. 
    Suggestion: Before you perform this operation, make sure that the operation will not affect working of system. 
    Have you read danger alert message carefully?(y/n) 
    y 
    Enter "I have read and understand the consequences associated with performing this operation." to confirm running this command. 
    I have read and understand the consequences associated with performing this operation. 
    Succeeded in setting the switch value. The switch value is 1. 
    Storage: minisystem> 
  • Show help information.
    Storage: minisystem> memstat.sh -h 
    memstat.sh [-h] [-a] [-c command] : It's just the memstat modules's command about memory info. Enter memstat.sh -a to obtain more information. 
    Storage: minisystem> 
  • Show the operations that can be performed using "memstat.sh".
    Storage: minisystem> memstat.sh -a 
    memstat.sh -c setmemstatswitch [value]         : set memstat's switch, [value] is [0|1],0:close,1:open. 
    memstat.sh -c settraceentry [stacklayer]       : set the depth of the stack.[stacklayer] is [1-8]. 
    memstat.sh -c setmodulefilter [midName]        : set module filter, only can set kernel's module. 
    memstat.sh -c showmoduletrace                  : show used page information according to module_filter. 
    memstat.sh -c showstatinfo                     : show all module's memory info allocated by buddy, vmalloc, slab. 
    memstat.sh -c showmemstatswitch                : show memstat's switch. 
    memstat.sh -c showtraceentry                   : show memstat's trace entry. 
    memstat.sh -c showmodulefilter                 : show filter module. 
    Storage: minisystem> 
  • Show the switch value of enabling or disabling memory statistics collection.
    Storage: minisystem> memstat.sh -c showmemstatswitch 
    1 
    Storage: minisystem>
  • Show buddy and vmalloc memory occupied by all kernel modules.
    Storage: minisystem> memstat.sh -c showstatinfo 
    Note: The unit of memory is bytes. 
    module                          buddy           vmalloc         core_size 
                             libfc         0               0          188416 
                           iocount         0               0           86016 
                           os_test         0               0           16384 
                           tgtscsi         0               0         2060288 
                        flashcache         0               0          872448 
                    nls_cp932_utf8         0               0           40960 
                           context         0               0         8495104 
                    vhost_protocol         0               0          122880 
                          i2c_core         0               0           40960 
                             dbapp         0               0          380928 
                             hioce         0               0          249856 
                        cache_ctrl         0               0          196608 
                             lfcoe       0               0           69632 
                      common_event         0               0           77824 
                      auto_tiering         0               0          831488 
                             econf         0               0           32768 
                    fujitsu_dx8000         0               0           16384 
                             lockd         0               0          487424 
                      xt_conntrack         0               0           16384 
                      hioct_toetom         0               0          319488 
                        os_feeddog         0               0           16384 
                             ixgbe         0               0          286720 
                             iw_cm         0               0           36864 
                          ibm_ds8k         0               0           28672 
                      overloadctrl         0               0          212992 
                             grain         0               0         3203072 
                          btree         0               0          561152 
                      logzone_ctrl         0               0           94208 
                             omlib         0               0           77824 
                           sysctrl         0               0         9945088 
                             fcdrv         0               0          708608 
                             reloc         0               0          327680 
                      os_rnvramdev         0               0           16384 
                        alm_client         0               0           77824 
                        lic_kernel         0               0          114688 
                        cliadapter         0               0           20480 
                             ibtgt         0               0          102400 
                        ftds_adapt         0               0           90112 
                 auto_tiering_shim         0               0           69632 
                        huawei_all         0               0           73728 
                         nls_cp932         0               0           98304 
                         nls_cp950         0               0          118784 
                        dlmadapter         0               0          163840 
                        netapp_fas         0             0           36864 
                         nls_cp936         0               0          139264 
                        nls_euc_jp         0               0           16384 
                      agetty_query         0               0           16384 
                      scm_kernel         0               0           40960 
                             quark         0               0          376832 
                             nvram         0               0           61440 
                        msg_client         0               0          106496 
                         nls_cp949         0               0          163840 
                 scsi_transport_fc         0               0           61440 
                        iscsi_comm         0               0           32768 
                               cab         0               0          684032 
                               acc         0               0          118784 
                  crct10dif_common         0               0           16384 
                               dca         0               0           16384 
                             quota         0               0         2256896 
                  crct10dif_pclmul         0               0           16384 
                          ccdb_app         0               0           45056 
                     smb3_failover         0               0          495616 
                        xnet_agent         0               0          139264 
                               ibc         0               0           24576 
                          dbmanage         0               0          192512 
                        dlmplug_ol         0               0           32768 
                               dal         0               0          741376 
                              i40e 229376               0        352256 
                               igb         0               0          208896 
                        dlmplug_rl         0               0          339968 
                               adm         0               0          507904 
                   ipmi_msghandler         0               0           49152 
                               nbc         0               0           36864 
                               dif         0               0          106496 
                   dell_compellent         0               0           16384 
                               eam         0               0         3567616 
                               dcl         0               0          507904 
                        nls_euc_tw         0               0          319488 
                        tms_ramsan         0               0           16384 
                               ckg         0               0         6381568 
                        rss_action         0               0          761856 
                   space_flow_ctrl         0               0          196608 
                        hp_eva5000         0               0           16384 
                               mic         0               0           36864 
                               hdm         0               0          651264 
                               foe         0               0           94208 
                               dmi         0               0         2359296 
                          ccdb_rpm         0               0           81920 
                        nas_notify         0               0           16384 
                               llc         0               0           16384 
                               nla         0               0           36864 
                      xt_multiport         0               0           16384 
                          pciecard         0               0         1224704 
                        protobuf_k         0               0           77824 
                          cfgframe         0               0         1273856 
                               sdd      0               0          303104 
                               bgr         0               0          299008 
                               nal         0               0           32768 
                        mml_server         0               0          319488 
                             8021q         0               0           36864 
                               iod         0               0        17678336 
                        repio_util         0               0          188416 
                        nas_mirror         0               0          331776 
                        drvtoecore         0               0          139264 
                               cmm         0               0        28168192 
                               ldm         0               0         1302528 
                               pal         0               0         8790016 
                               cln         0               0         4382720 
                               mpa         0               0         1421312 
                        iscsi_prot         0               0         1822720 
                               ral         0               0          462848 
                        kboxdriver         0               0           24576 
                               sal         0               0        10170368 
                               itc         0               0          266240 
                 drv_iosubsys_nvme         0               0           16384 
                               epl         0               0         1417216 
                               smb         0               0         4874240 
                               drm         0               0          131072 
                               rel         0               0         1208320 
                               spa         0            0        18739200 
                               bsp         0               0          561152 
                               sem         0               0          106496 
                               spc         0               0        11018240 
                     hioc_genalloc         0               0           16384 
                          dbkernel         0               0          978944 
                          dif_ctrl         0               0           16384 
                          eam_ctrl         0               0           36864 
                          bdm_ctrl         0               0           36864 
                               rim         0               0          270336 
                          diagnose         0               0          237568 
                          pciecore         0               0         1056768 
                          comm_mem         0               0           61440 
                          nas_lock         0               0          675840 
                               sio         0               0         1220608 
                               rsf         0               0         1531904 
                               lmr         0               0         1449984 
                               cpy         0               0         2162688 
                               mrm         0               0          176128 
                               uio         0               0           16384 
                   unflowlevel_ioc         0               0          532480 
                   iscsi_initiator       0               0          303104 
                               kvm         0               0          561152 
                          sata_mml         0               0          110592 
                          nas_klog         0         2109440          131072 
                          ata_piix         0               0           36864 
                               mrp         0               0           20480 
                ccdb_nvram_adapter         0               0          180224 
                               lun         0               0         2035712 
                          comm_rpc         0               0          253952 
                          cnet_msg         0               0          110592 
                          iodetect         0               0           28672 
                          cmm_dump         0               0           16384 
                     dha_collector         0               0          229376 
                               qos         0               0         6098944 
                               ptp         0               0           20480 
                   macrosan_ms3000         0               0           16384 
                          nas_ctrl         0               0           24576 
                          drvframe         0               0          454656 
                               stp         0               0           16384 
                          pagepool         0               0          253952 
                               vos         0        190636032        7950336 
                   xve_transaction         0               0          167936 
                               rtt         0               0          118784 
                          pps_core         0               0           20480 
                          xnet_pal         0               0           24576 
                            ib_mad         0               0           57344 
                          rep_temp         0               0           57344 
                     metadata_sync         0               0         1875968 
                          scsi_tgt         0               0           20480 
                          pool_pub         0               0           24576 
                              jbd2         0               0          106496 
                          lun_ctrl         0             0         1425408 
                          iscsi_sw         0               0           45056 
                     bsp_mce_print         0               0           16384 
                          osp_proc         0               0           16384 
                   nls_iso8859_1         0               0           16384 
                          xnet_mgt         0               0          176128 
                          xnet_udp         0               0          184320 
                          qos_ctrl         0               0           81920 
                          fcportft         0               0           16384 
                          smartlog         0               0           32768 
                   cluster_monitor         0               0          528384 
                          xt_limit         0               0           16384 
                       ccdb_client         0               0          831488 
                       reg_feeddog         0               0           16384 
                            aa_krn         0               0           61440 
                          rss_ctrl         0               0           81920 
                            libata         0               0          212992 
                            ibm_ds         0               0           45056 
                          vmmscomm         0               0           69632 
                            rep_hc         0               0         6582272 
                     falcon_ipstor         0               0           16384 
                            hp_eva         0               0           40960 
                       bdm_adapter         0               0          442368 
                              smb2         0               0        10833920 
                          rss_util         0               0       4657152 
                            sd_mod         0               0           49152 
                            ombase         0               0           24576 
                            hp_msa         0               0           28672 
                            pciehp         0               0          372736 
                         emc_dmx3k         0               0           16384 
                 crct10dif_generic         0               0           16384 
                       smb_manager         0               0         2220032 
                     string_module         0               0          798720 
                    nf_defrag_ipv4         0               0           16384 
                            sa_krn         0               0           40960 
                       mcachelayer         0               0          679936 
                    nf_defrag_ipv6         0               0           53248 
                            satahp         0               0           45056 
                          sysevent         0               0          212992 
                       signo_catch         0               0           53248 
                     nas_proto_vfs         0               0         1142784 
                            rep_hv         0               0         4292608 
                              ext4         0               0          577536 
                       bsp_adapter         0               0          118784 
                            dlmfwk         0               0         1634304 
                            rep_rm         0               0         5144576 
                            fdstat         0               0           20480 
                          ostorvfs         0         3211264          937984 
                       msg_adapter         0               0           24576 
                  os_panic_handler         0               0           16384 
                            e1000e         0               0          270336 
                         mlx4_core         0               0          315392 
                       perf_kernel      0               0          200704 
                            ioctrl         0               0          106496 
                     nvram_sysinfo         0               0           20480 
                  stackcheckframes         0               0           16384 
                            drvmml         0               0         1413120 
                     fujitsu_e4000         0               0           16384 
                       ctrl_public         0               0           16384 
                       common_info         0               0           53248 
                              ahci         0               0           57344 
                       nas_netlink         0               0           61440 
                       cluster_lib         0               0        614400 
                            extent         0               0         1630208 
                            volume         0               0         2797568 
                            sunrpc         0               0         1052672 
                            drvtom         0               0          229376 
                  agetty_interface         0               0           16384 
                              fdsa         0               0          421888 
                        crc_t10dif         0               0           16384 
                           rep_3dc         0               0          954368 
                         ccdb_ctrl         0               0           16384 
                            vstore         0               0          274432 
                       auth_rpcgss         0               0           65536 
                         ibm_flash         0               0           16384 
                  upgrade_bootdisk         0               0           16384 
                         guide_all         0            0           16384 
                              kmma         0               0           90112 
                       product_net         0               0           20480 
                       productconf         0               0          196608 
                              kvdb         0               0          667648 
                              bnet         0               0          180224 
                              garp         0               0           16384 
                              nfsd         0          856064         7143424 
                              tddp         0               0         1216512 
                              pair         0               0         1327104 
                         ib_compat         0               0           16384 
                           mlx4_ib         0               0          192512 
                    os_die_handler         0               0           16384 
                       xve_logzone         0               0        14192640 
                              ftds         0               0         1863680 
                              snap         0               0         8568832 
                              fcpy         0               0          458752 
                         ip_tables         0               0           24576 
                              kbox         0         5881856          266240 
                       nas_sysctrl         0           16384         2068480 
                              nvme         0               0          434176 
                              pmgr       0               0          512000 
                              flow         0               0          131072 
                         iscsi_seg         0               0           73728 
                         commu_api         0               0           20480 
                  transaction_ctrl         0               0           16384 
                              loop         0               0           28672 
                              mtgt         0               0         1449984 
                         omadapter         0               0           45056 
                              tppi         0               0          233472 
                              util         0               0          536576 
                         comm_task         0               0      1445888 
                         scheduler         0               0           73728 
                         xnet_pcie         0               0          303104 
                         ib_uverbs         0               0           73728 
                         xnet_rdma         0               0          118784 
                         hvs_ilock         0               0          176128 
                           mbcache         0               0           16384 
                         emc_vplex         0               0           16384 
                           ib_addr         0               0           20480 
                    iptable_filter         0               0           16384 
                                ea         0               0           49152 
                         scsi_ctrl         0               0           86016 
                         algorithm         0               0           16384 
                         xnet_core         0               0         4141056 
                           log_cbb         0               0           24576 
                         kvm_intel         0               0          172032 
                    os_oom_handler         0               0           16384 
                           bdm_lib         0               0          946176 
                  drv_iosubsys_ini         0               0           53248 
                         pool_ctrl         0               0          856064 
                             raid0         0               0           20480 
                             raid1         0             0           36864 
                           ib_umad         0               0           24576 
                           nas_acl         0               0          999424 
                         unfcommon         0               0         1249280 
                         ib_core         0               0          126976 
                           rdma_cm         0               0           53248 
                           rocache         0               0          204800 
               audit_client_kernel         0               0           40960 
                                ua         0               0           49152 
                           db_plat         0               0          512000 
                                sd         0               0         1785856 
                 nf_conntrack_ipv4         0               0           16384 
                             cxgb4  12386304               0          581632 
                           pcielib         0               0           61440 
                         osax_util         0               0           69632 
                      transaction2         0               0          626688 
                           pcieaer         0               0          442368 
                                lm         0               0         1015808 
                                sg         0               0           40960 
                 nf_conntrack_ipv6         0               0           20480 
                  drv_iosubsys_tgt         0               0           16384 
                              tg         0               0          258048 
                           rep_arb         0               0         1150976 
                           tcp_bbr         0               0           20480 
                         xnet_util         0               0        450560 
                                mp         0               0          720896 
                         irqbypass         0               0           16384 
                           dbuffer         0               0          348160 
                        hds_ams         0               0           16384 
                         crosssite         0               0          827392 
                                rm         0               0         4206592 
                           nas_mem         0         2097152          172032 
                           bonding         0               0          147456 
                         vols_util         0               0          708608 
                           iw_hioc         0               0          188416 
                           ibm_svc         0               0           32768 
                           spaceub         0               0          344064 
                      zlib_deflate         0               0           28672 
                      emc_clariion         0               0           49152 
                         antivirus         0               0          167936 
                        ip6_tables         0               0           28672 
                           ipmi_si         0               0           57344 
                           bsp_mml         0               0          176128 
                           fs_ctrl         0               0         1130496 
                           ibm_xiv         0               0           16384 
               nfs_charset_convert         0               0           65536 
                      acpi_cpufreq         0               0           20480 
                           rep_svc         0               0         2199552 
                           ib_srpt         0               0          122880 
                           nas_pum         0               0           90112 
                             cache         0               0         4874240 
                           forward         0               0           57344 
                      nf_conntrack      0               0          126976 
                           hds_usp         0               0           24576 
                      comm_redolog         0               0          172032 
                      upgrade_kern         0               0          372736 
          sysalarm_agent_netlink_k         0               0           16384 
                           mmt_krn         0               0           28672 
                             ib_cm         0               0           45056 
                           netmgmt         0               0          221184 
                   ip6table_filter         0               0           16384 
                      ipmi_devintf         0               0           20480 
                             ib_sa         0               0        36864 
      
    Storage: minisystem> 
  • Set the number of call stack layers to be reserved. When setting the number of call stack layers, disable the function of collecting memory statistics.
    Storage: minisystem> memstat.sh -c settraceentry 3 
    DANGER: You are going to perform a danger command. Memory consumption rises as the number of stack layers increases. 
    Suggestion: Before you perform this operation, make sure that the operation will not affect working of system. 
    Have you read danger alert message carefully?(y/n) 
    y 
    Enter "I have read and understand the consequences associated with performing this operation." to confirm running this command. 
    I have read and understand the consequences associated with performing this operation. 
    Succeeded in setting the number of call stack layers. The number of call stack layers is 3. 
    Storage: minisystem> 
  • Show the number of call stack layers.
    Storage: minisystem> memstat.sh -c showtraceentry 
    3 
    Storage: minisystem>
  • Set a filtering module only from kernel modules in the current system.
    Storage: minisystem>  memstat.sh -c setmodulefilter ib_sa 
    DANGER: You are going to perform a danger command. Only ib_sa is traced and the previously configured filter module will become invalid. 
    Have you read danger alert message carefully?(y/n) 
    y 
    Are you sure you really want to perform the operation?(y/n) 
    y 
    Succeeded in setting the filtering module. The filtering module is ib_sa. 
    Storage: minisystem> 
  • Show the configured filtering module.
    Storage: minisystem> memstat.sh -c showmodulefilter 
    e1000e 
    Storage: minisystem>
  • Show information about pages and call stacks used by the filtering module.
    Storage: minisystem> memstat.sh -c showmoduletrace 
    page[ffffea007efe6e00], pfn[33290680], size[32768], module[e1000e] 
    [<ffffffff81170758>] __alloc_page_frag+0x88/0x180 
    [<ffffffff815191df>] __netdev_alloc_skb+0x6f/0x110 
    [<ffffffffa0c479eb>] e1000_clean_rx_irq+0x35b/0x440  
    [e1000e]page[ffffea0005e9ee00], pfn[1550264], size[32768], module[e1000e] 
    [<ffffffff81170758>] __alloc_page_frag+0x88/0x180 
    [<ffffffff815191df>] __netdev_alloc_skb+0x6f/0x110 
    [<ffffffffa0c479eb>] e1000_clean_rx_irq+0x35b/0x440  
    [e1000e] 
    Storage: minisystem> 

System Response

None

Translation
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Updated: 2019-07-12

Document ID: EDOC1000138402

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