Exadata存储节点的CPU限制成功了没?

上篇随笔谈到刷1/8 rack时,日志显示存储节点已经成功限制CPU的,可如果使用mpstat命令看貌似还是64 CPU,难道实际没有成功吗?

[root@dbm08celadm03 ~]# mpstat
Linux 4.14.35-1902.306.2.1.el7uek.x86_64 (dbm08celadm03.oscbj.com)  2021年06月07日     _x86_64_    (64 CPU)

10时50分22秒  CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal  %guest  %gnice   %idle
10时50分22秒  all    3.39    0.01    2.21    0.00    0.00    0.00    0.00    0.00    0.00   94.39

别急,我们实际去查询/proc/cpuinfo信息,发现已经是32个processor:

[root@dbm08celadm03 ~]# grep processor /proc/cpuinfo
processor   : 0
processor   : 1
processor   : 2
processor   : 3
processor   : 4
processor   : 5
processor   : 6
processor   : 7
processor   : 16
processor   : 17
processor   : 18
processor   : 19
processor   : 20
processor   : 21
processor   : 22
processor   : 23
processor   : 32
processor   : 33
processor   : 34
processor   : 35
processor   : 36
processor   : 37
processor   : 38
processor   : 39
processor   : 48
processor   : 49
processor   : 50
processor   : 51
processor   : 52
processor   : 53
processor   : 54
processor   : 55
[root@dbm08celadm03 ~]#
[root@dbm08celadm03 ~]# grep processor /proc/cpuinfo |wc -l
32

进一步使用cellcli查询存储节点的详情:

[root@dbm08celadm03 ~]# cellcli
CellCLI: 发行版 20.1.3.0.0 - 发行时间 Mon Jun 07 10:50:48 CST 2021

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CellCLI> list cell detail
     name:                   dbm08celadm03
     accessLevelPerm:        remoteLoginEnabled
     bbuStatus:              normal
     cellVersion:            OSS_20.1.3.0.0_LINUX.X64_201023
     cpuCount:               32/64
     diagHistoryDays:        7
     doNotServiceLEDStatus:  off
     eighthRack:             TRUE
     fanCount:               8/8
     fanStatus:              normal
     flashCacheMode:         WriteBack
     httpsAccess:            ALL
     id:                     1912XLA054
     interconnectCount:      2
     interconnect1:          ib0
     interconnect2:          ib1
     iormBoost:              0.0
     ipaddress1:             192.168.118.9/22
     ipaddress2:             192.168.118.10/22
     kernelVersion:          4.14.35-1902.306.2.1.el7uek.x86_64
     locatorLEDStatus:       off
     makeModel:              Oracle Corporation ORACLE SERVER X8-2L High Capacity
     memoryGB:               188
     metricHistoryDays:      7
     offloadGroupEvents:
     powerCount:             2/2
     powerStatus:            normal
     ramCacheMaxSize:        0
     ramCacheMode:           Auto
     ramCacheSize:           0
     releaseImageStatus:     success
     releaseVersion:         20.1.3.0.0.201023
     rpmVersion:             cell-20.1.3.0.0_LINUX.X64_201023-1.x86_64
     releaseTrackingBug:     31970366
     status:                 online
     temperatureReading:     23.0
     temperatureStatus:      normal
     upTime:                 3 days, 2:46
     usbStatus:              normal
     cellsrvStatus:          running
     msStatus:               running
     rsStatus:               running

CellCLI> exit
退出

也可以看到“cpuCount:”显示为“32/64”,说明存储节点的CPU是限制成功的。

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