节点意义重大（范文推荐）

时间：2022-06-08 15:00:02 来源：网友投稿

下面是小编为大家整理的节点意义重大（范文推荐）,供大家参考。希望对大家写作有帮助!

节点意义重大（范文推荐）

2022年节点意义重大4篇

第1篇: 2022年节点意义重大

IEEE 14节点配电网络具有三条馈线，系统基准容量为100MVA，基准电压为23kV，整个网络总负荷为28.7+j7.75MVA，该配电网参数中，支路的阻抗参数为标幺值，因此需要根据基准电压和基准容量求取其有名值。本来有16条支路，因为配网运行时一般都是开环运行，因此去掉了14、15、16三条支路，由此构成14节点13条支路的放射状典型配网结构，供各位研究者参考。

第2篇: 2022年节点意义重大

3机9节点系统的结构示意图，如图。

在表1中给出了3机9节点系统的发电机所在母线数据（表中各参数标幺值是以100MVA为基准功率计算得到的。

在表6.2中给出了3机9节点系统的输电线路和变压器数据（表中各参数标幺值是以100MVA为基准功率计算得到的）。

在表6.3种给出了3机9节点系统的负荷参数（基准功率100MVA表中各参数标幺值是以100MVA为基准功率计算得到的）。

表1 3机9节点系统发电机数据

发电机

No.1

No.2

No.3

母线号

类型

Slack

母线电压

1.04

1.025

有功功率

1.63

0.85

表2 3机9节点系统的输电线路和变压器数据

母线号

类型

B/2

B1 - B4

变压器

0.0576

B2 – B7

变压器

0.0625

B3 – B9

变压器

0.0585

B4 – B5

输电线路

0.01

0.085

0.088

B4 – B6

输电线路

0.017

0.092

0.0079

B5 – B7

输电线路

0.032

0.161

0.153

B6 – B9

输电线路

0.039

0.17

0.179

B7 – B8

输电线路

0.0085

0.072

0.0745

B8 – B9

输电线路

0.0119

0.1008

0.1045

表3 3机9节点系统的负荷参数

负荷号

母线号

有功功率

无功功率

PL1

1.25

0.5

PL2

0.9

0.3

PL3

0.35

作业完成后，第14周之前发送到 dding8987@163.com,写明学号和姓名

第3篇: 2022年节点意义重大

Vmware Infrastructure 3 虚拟计算环境
实施 3 节点 ORACLE 10G RAC

目录
架构图.......................................................................................................................................................................3 环境描述...................................................................................................................................................................4 实施思路...................................................................................................................................................................4 一．以下从对系统参数进行设置开始：...............................................................................................................5 二．安装OCR、ORACLE（ocfs、ASM）..........................................................................................................11
2

架构图
3

第4篇: 2022年节点意义重大

OracleRAC删除一个节点_3节点的实验

1、主机名规划：
#PublicNetwork-(eth0192.168.110.11rac1192.168.110.12rac2
#PrivateInterconnect-(eth110.10.10.11rac1priv10.10.10.12rac2priv
#PublicVirtualIP(VIPaddresses-(eth0192.168.110.21rac1vip192.168.110.22rac2vip
2、删除数据库实例—rac3主机的racdb3
Tostartthedatabaseinstanceremovalprocess,runthefollowingfromlinux1:
dbca——instancemanagement——deleteinstance查看状态如下：
[oracle@rac1~]$crs_stat-t
NameTypeTargetStateHost------------------------------------------------------------ora....SM1.asmapplicationONLINEONLINErac1ora....C1.lsnrapplicationONLINEONLINErac1ora.rac1.gsdapplicationONLINEONLINErac1ora.rac1.onsapplicationONLINEONLINErac1ora.rac1.vipapplicationONLINEONLINErac1ora....SM2.asmapplicationONLINEONLINErac2ora....C2.lsnrapplicationONLINEONLINErac2ora.rac2.gsdapplicationONLINEONLINErac2ora.rac2.onsapplicationONLINEONLINErac2ora.rac2.vipapplicationONLINEONLINErac2ora....SM3.asmapplicationONLINEONLINErac3ora....C3.lsnrapplicationONLINEONLINErac3

ora.rac3.gsdapplicationONLINEONLINErac3ora.rac3.onsapplicationONLINEONLINErac3ora.rac3.vipapplicationONLINEONLINErac3ora.racdb.dbapplicationONLINEONLINErac2ora....b1.instapplicationONLINEONLINErac1ora....b2.instapplicationONLINEONLINErac2ora....db_s.csapplicationONLINEONLINErac1ora....db1.srvapplicationONLINEONLINErac1ora....db2.srvapplicationONLINEONLINErac23、删除ASM实例—rac3主机的+ASM3
[oracle@rac1~]$srvctlstopasm-nrac3[oracle@rac1~]$srvctlremoveasm-nrac3
[oracle@rac1~]$crs_stat-t
NameTypeTargetStateHost------------------------------------------------------------ora....SM1.asmapplicationONLINEONLINErac1ora....C1.lsnrapplicationONLINEONLINErac1ora.rac1.gsdapplicationONLINEONLINErac1ora.rac1.onsapplicationONLINEONLINErac1ora.rac1.vipapplicationONLINEONLINErac1ora....SM2.asmapplicationONLINEONLINErac2ora....C2.lsnrapplicationONLINEONLINErac2ora.rac2.gsdapplicationONLINEONLINErac2ora.rac2.onsapplicationONLINEONLINErac2ora.rac2.vipapplicationONLINEONLINErac2ora....C3.lsnrapplicationONLINEONLINErac3ora.rac3.gsdapplicationONLINEONLINErac3ora.rac3.onsapplicationONLINEONLINErac3ora.rac3.vipapplicationONLINEONLINErac3ora.racdb.dbapplicationONLINEONLINErac2ora....b1.instapplicationONLINEONLINErac1ora....b2.instapplicationONLINEONLINErac2ora....db_s.csapplicationONLINEONLINErac1ora....db1.srvapplicationONLINEONLINErac1ora....db2.srvapplicationONLINEONLINErac2RemoveASMDirectoriesfromtheNodetobeDeleted删除asm一些目录
[oracle@linux3~]$cd$ORACLE_BASE/admin

[oracle@linux3~]$rm-rf+ASM[oracle@linux3~]$cd$ORACLE_HOME/dbs[oracle@linux3~]$rm-f*ASM*
RemoveASMLibfromtheNodetobeDeleted[root@linux3~]#/etc/init.d/oracleasmstopDroppingOracleASMLibdisks:[OK]
ShuttingdowntheOracleASMLibdriver:[OK][root@linux3~]#rpm-qa|greporacleasmoracleasm-2.6.18-128.el5-2.0.5-1.el5oracleasmlib-2.0.4-1.el5
oracleasm-support-2.1.3-1.el5
[root@linux3~]#rpm-evoracleasm-2.6.18-128.el5-2.0.5-1.el5oracleasmlib-2.0.4-1.el5oracleasm-support-2.1.3-1.el5warning:/etc/sysconfig/oracleasmsavedas/etc/sysconfig/oracleasm.rpmsave
[root@linux3~]#rm-f/etc/sysconfig/oracleasm.rpmsave
[root@linux3~]#rm-f/etc/sysconfig/oracleasm-_dev_oracleasm[root@linux3~]#rm-f/etc/rc.d/init.d/oracleasm[root@linux3~]#rm-f/etc/rc0.d/*oracleasm*[root@linux3~]#rm-f/etc/rc1.d/*oracleasm*[root@linux3~]#rm-f/etc/rc2.d/*oracleasm*[root@linux3~]#rm-f/etc/rc3.d/*oracleasm*[root@linux3~]#rm-f/etc/rc4.d/*oracleasm*[root@linux3~]#rm-f/etc/rc5.d/*oracleasm*[root@linux3~]#rm-f/etc/rc6.d/*oracleasm4、删除监听listener—rac3主机的listener_RAC3RemovetheListenerFromtheNodetobeDeletednetca
oracle@linux3~]$ps-ef|greplsnr|grep-v"grep"|grep-v"ocfs"|awk"{print$9}"5、删除数据库软件
RemovetheOracleDatabaseSoftwareFromtheNodetobeDeletedFromthenodetobedeleted(linux3,

cd$ORACLE_HOME/oui/bin
oracle@linux3~]$DISPLAY=:0.0;exportDISPLAY[oracle@linux3~]$cd$ORACLE_HOME/oui/bin
[oracle@linux3bin]$./runInstaller-updateNodeListORACLE_HOME=$ORACLE_HOMECLUSTER_NODES=""-local[oracle@rac３bin]$./runInstaller-updateNodeListORACLE_HOME=$ORACLE_HOMECLUSTER_NODES=""-localStartingOracleUniversalInstaller...
Nopre-requisitechecksfoundinoraparam.ini,nosystempre-requisitecheckswillbeexecuted.
Theinventorypointerislocatedat/etc/oraInst.locTheinventoryislocatedat/oracle/app/oraInventory"UpdateNodeList"wassuccessful.

[oracle@linux3~]$cd$ORACLE_HOME/oui/bin[oracle@linux3bin]$./runInstaller（选择de-install）再到第一台机上
./runInstaller-updateNodeListORACLE_HOME=$ORACLE_HOME"CLUSTER_NODES={rac1,rac2}"
StartingOracleUniversalInstaller...
Nopre-requisitechecksfoundinoraparam.ini,nosystempre-requisitecheckswillbeexecuted.
Theinventorypointerislocatedat/etc/oraInst.locTheinventoryislocatedat/oracle/app/oraInventory"UpdateNodeList"wassuccessful.６、删除这个节点从crs中
RemovetheNodetobeDeletedfromOracleClusterware
[oracle@rac3bin]$$ORA_CRS_HOME/bin/racgonsremove_configrac3:6200shell-init:errorretrievingcurrentdirectory:getcwd:cannotaccessparentdirectories:Nosuchfileordirectory

racgons:Existingkeyvalueonrac3=6200.racgons:rac3:6200removedfromOCR.[oracle@rac3dbs]$grep"^remoteport"$ORA_CRS_HOME/opmn/conf/ons.configremoteport=6200
[oracle@rac3dbs]$$ORA_CRS_HOME/bin/oifcfgdelif-noderac3
PROC-4:Theclusterregistrykeytobeoperatedondoesnotexist.PRIF-11:clusterregistryerrorDisableOracleClusterwareApplications
[root@rac3install]#./rootdelete.shlocalnosharedvarnosharedhomeCRS-0210:Couldnotfindresource"ora.rac3.LISTENER_RAC3.lsnr".ShuttingdownOracleClusterReadyServices(CRS:Jun0622:58:39.893|INF|daemonshuttingdownStoppingresources.Thiscouldtakeseveralminutes.SuccessfullystoppedCRSresources.StoppingCSSD.
ShuttingdownCSSdaemon.
Shutdownrequestsuccessfullyissued.
Shutdownhasbegun.Thedaemonsshouldexitsoon.CheckingtoseeifOracleCRSstackisdown...OracleCRSstackisnotrunning.OracleCRSstackisdownnow.
Removingscript.forOracleClusterReadyservicesUpdatingocrfilefordowngrade
CleaningupSCRsettingsin"/etc/oracle/scls_scr"
DeleteNodefromClusterandUpdateOCR[oracle@rac1~]$$ORA_CRS_HOME/bin/olsnodes-nrac11rac22rac33
[root@rac1install]#./rootdeletenode.shrac3,3
CRS-0210:Couldnotfindresource"ora.rac3.LISTENER_RAC3.lsnr".CRS-0210:Couldnotfindresource"ora.rac3.ons".CRS-0210:Couldnotfindresource"ora.rac3.vip".CRS-0210:Couldnotfindresource"ora.rac3.gsd".CRS-0210:Couldnotfindresourceora.rac3.vip.

CRSnodeappsaredeletedsuccessfully
clscfg:EXISTINGconfigurationversion3detected.clscfg:version3is10GRelease2.
Successfullydeleted14valuesfromOCR.
KeySYSTEM.css.interfaces.noderac3markedfordeletionisnotthere.Ignoring.
Successfullydeleted5keysfromOCR.Nodedeletionoperationsuccessful."rac3,3"deletedsuccessfully
[oracle@rac2~]$$ORA_CRS_HOME/bin/olsnodes-nrac11rac22
UpdateNodeListforOracleClusterwareSoftware-(Removelinux3
[oracle@rac3bin]$cd$ORA_CRS_HOME/oui/bin
[oracle@rac3bin]$./runInstaller-updateNodeList
ORACLE_HOME=$ORA_CRS_HOMECLUSTER_NODES=""-localCRS=trueStartingOracleUniversalInstaller...
Nopre-requisitechecksfoundinoraparam.ini,nosystempre-requisitecheckswillbeexecuted.
Theinventorypointerislocatedat/etc/oraInst.locTheinventoryislocatedat/oracle/app/oraInventory"UpdateNodeList"wassuccessful.
De-installOracleClusterwareSoftwarecd$ORA_CRS_HOME/oui/bin./runInstaller

7、UpdateNodeListforRemainingNodesintheCluster[oracle@linux1~]$cd$ORA_CRS_HOME/oui/bin
[oracle@linux1bin]$./runInstaller-updateNodeList
ORACLE_HOME=$ORA_CRS_HOME"CLUSTER_NODES={rac1,rac2}"CRS=trueStartingOracleUniversalInstaller...

8、VerifyNodetobeDeletedisnoLongeraMemberoftheCluster[oracle@rac1bin]$srvctlstatusnodeapps-nrac3PRKC-1056:Failedtogetthehostnamefornoderac3PRKH-1001:HASContextInternalError[OCRError(Native:getHostName:[21]]
[oracle@rac1bin]$$ORA_CRS_HOME/bin/crs_stat|grep-irac3[oracle@rac1bin]$$ORA_CRS_HOME/bin/olsnodes-nrac11rac22
[oracle@rac1bin]$
９、Remove/RenameanyRemainingOracleFilesfromNodetobeDeletedFromthenodetobedeleted(linux3,remove/renameanyremainingOraclefileswhileloggedinastherootuseraccount:
[root@linux3~]#mv-f/etc/inittab.no_crs/etc/inittab[root@linux3~]#rm-f/etc/inittab.orig[root@linux3~]#rm-f/etc/inittab.crs
[root@linux3~]#rm-rf/etc/oracle[root@linux3~]#rm-f/etc/oratab
[root@linux3~]#rm-f/etc/oraInst.loc[root@linux3~]#rm-rf/etc/ORCLcluster[root@linux3~]#rm-rf/u01/app/oracle[root@linux3~]#rm-rf/u01/app/crs
[root@linux3~]#rm-f/usr/local/bin/coraenv[root@linux3~]#rm-f/usr/local/bin/dbhome[root@linux3~]#rm-f/usr/local/bin/oraenv
Finally,removetheOracleuseraccountandallassociatedUNIXgroupsfromlinux3:
[root@linux3~]#userdel-roracle[root@linux3~]#groupdeloinstall[root@linux3~]#groupdeldba[root@linux3~]#groupdeloper