There is an instance for which the instance type is set to ASMPROXY. Which two statements are
correct?
A.
We know it can be shutdown when ACFS is not running.
B.
We know this duster is using Flex ASM.
C.
We know Oracle ASM Dynamic Volume Manager is not supported here.
D.
We know this is an Oracle Restart configuration.
E.
We know this node must have a direct ASM client running.
Explanation:
https://docs.oracle.com/database/121/OSTMG/asminst.htm#OSTMG95329
B,E
An Oracle ASM proxy instance is an Oracle instance running on a Hub node with a direct Oracle ASM client. Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM) are supported with an Oracle ASM proxy instance.
https://docs.oracle.com/database/121/OSTMG/GUID-545C311D-24C6-421A-ACBE-CA29E1FDA0A6.htm
I think A & E
ADVM Proxy (http://www.hhutzler.de/blog/flex-asm-new-12c-feature/#advm-proxy)
ASM Dynamic Volume Manager (ADVM) Proxy is a special Oracle instance.
It enables ADVM to connect to Flex ASM and is required to run on the same node as ADVM and ACFS.
It can be shutdown when ACFS is not running.
The ADVM proxy instance has its ORACLE_SID set to +APX
The ADVM proxy instance has its ORACLE_SID set to +APX
The ADVM proxy instance has its ORACLE_SID set to +APX(node number)
But if we are not running Flex ASM (Standard ASM), i think there is no reason to have ASM Proxy instance running.
B,E
The configurations of Oracle ASM in Oracle Flex ASM are: (B)
Oracle ACFS access through the Oracle ASM proxy instance
An Oracle ASM proxy instance is an Oracle instance running on a Hub node with a direct Oracle ASM client. (E) Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM) are supported with an Oracle ASM proxy instance. This configuration is shown in Figure 3-2.
The INSTANCE_TYPE initialization parameter is set to ASMPROXY for Oracle ASM proxy instances.
B,E
In my opinion: A, B
A: We can shutdown the ASM proxy instance if there is no ACFS running.
B: ASM proxy instance is running only in a flex ASM configuration.
C: The opposite is true, ADVM is supported here.
D: Thats totally wrong 😉
E: Direct ASM clients like ACFS can run here but need not to do so. See A!
Agreed
I think its AE.
according to the figure 3-2 in the document
https://docs.oracle.com/database/121/OSTMG/GUID-545C311D-24C6-421A-ACBE-CA29E1FDA0A6.htm
there can be flex ASM instance itself, so in that case existance of “direct Oracle ASM client” may not be obligatory.. So option E seems to be wrong because of the MUST keyword.. According to me also the answer is A and B