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This article mainly introduces "command summary commonly used in oracle rac". In daily operation, I believe many people have doubts about command summary commonly used in oracle rac. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "command summary commonly used in oracle rac". Next, please follow the editor to study!

1. Modify the number of sessions

Query the number of connections to the current process in the database:

Select count (*) from v$process

Modify the maximum number of connections allowed in the database:

Alter system set processes = 1500 scope = spfile

(the database needs to be restarted to modify the number of connections)

2. How to delete an error in GRID installation

Su-grid

Cd / dev/oracleasm/disks

Rm-rf vote*

Cd / dev/disk/by-label

Rm-rf vote*

Ll / g01

Rm-rf *

Chown-R grid:oinstall / G01

Rm / etc/oracle/ocr.loc

Rm-rf / etc/ora*

Ps-ef | grep oha

Kill-9 47495

Cd / etc/init.d

Ls * oha*

Rm-rf * oha*

Cd / etc/rc3.d

Rm-rf S96ohasd

Cd / etc/rc5.d

Rm-rf S96oha *

Oracleasm scandisks

Oracleasm listdisks

Oracleasm querydisk / dev/mapper/*

Dd if=/dev/zero of=/dev/mapper/sc-vote-hpp1 bs=1M count=300

Dd if=/dev/zero of=/dev/mapper/tc-vote-hpp1 bs=1M count=300

Dd if=/dev/zero of=/dev/mapper/yd-vote-netappp1 bs=1M count=300

3. Rac cluster start and stop

Stop rac

Oracle user

181srvctl status database-d prod

182 srvctl stop database-d prod

183 srvctl status database-d prod

Root user

. / crsctl start has High availability

Cd / g01/11ggrid/app/11.2.0/grid/bin

. / crsctl check cluster-all

. / crsctl stop cluster-all

. / crsctl check cluster-all

. / crs_stat-t-v

Reboot

Start rac

Root user

975 cd / g01/11ggrid/app/11.2.0/grid/bin

977. / crsctl start cluster-all

978. / crsctl check cluster-all

980. / crsctl status resource-t

Oracle user

[oracle@sc-rac1] $srvctl start database-d prod

[oracle@sc-rac1] $srvctl status database-d prod

Instance prod1 is running on node sc-rac1

Instance prod2 is running on node sc-rac2

Instance prod3 is running on node tc-rac1

At this point, the study of "summary of commands commonly used in oracle rac" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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