In crsctl, the function of displayed home

I met one the other day oda.

The cluster version is 12.2.0.1

The version of the database is 11.2.0.4.

The above operation is about 10 Set of database . All are 11.2.0.4

But there's about 5 individual ORACLE_HOME.

as follows ：

ora.abc.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
ora.cvu
      1        ONLINE  ONLINE       test2                  STABLE
ora.def.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_4,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_4,STABLE
ora.mnp.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
ora.awd.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
ora.mgmtdb
      1        ONLINE  ONLINE       test2                  Open,STABLE
ora.whd.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_3,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_3,STABLE
ora.aac.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_4,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_4,STABLE
ora.opa.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_1,STABLE
ora.orcl.db
      1        ONLINE  ONLINE       test1                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_5,STABLE
      2        ONLINE  ONLINE       test2                  Open,HOME=/u01/app/o
                                                             racle/product/11.2.0
                                                             .4/dbhome_5,STABLE

before , I wonder ,12c In the cluster command of , database OPEN That's all right. . Why should there be HOME Well ？

Now I see . Because in a cluster , You may register multiple ORACLE_HOME.

In the use of sqlplus When it starts , It may be from the corresponding ORACLE_HOME Find the corresponding init.ora File to start .

therefore , It is pointed out here that HOME. It makes sense . Otherwise, how do you know that database corresponds to that ORACLE_HOME.

After a little problem yesterday , Find OPEN There's another one in the back HOME, In fact, it is still very meaningful .

END