1Z0-078 practice question 2 of 15

Which two statements are true regarding ASM Dynamic Volume Manager (ADVM)? (Choose two.)

Full set: 77 questions

Answer options

A: An ADVM volume is individually named and can contain only one file system. Correct answer

B: ADVM extends ASM by providing a device driver interface to storage backed by an ASM disk group. Correct answer

C: File systems contained in ADVM volumes may only contain database files.

D: Only one ADVM volume can be created in an ASM disk group.

E: To create an ADVM volume, disk group attributes COMPATIBLE.ASM and COMPATIBLE.ADVM must be minimally set to 12.1..

Correct Answer:

A. An ADVM volume is individually named and can contain only one file system.; B. ADVM extends ASM by providing a device driver interface to storage backed by an ASM disk group.

Explanation

Oracle ADVM is a volume-manager layer built on ASM. Each ADVM volume has a unique name and can hold exactly one ACFS (or raw) file system. ADVM supplies operating-system volume devices that map to space inside an ASM disk group, thereby extending ASM with a standard block-device interface.

Why Incorrect

C. ACFS inside an ADVM volume can store any POSIX files, not only database files.
D. Multiple ADVM volumes (up to 63 per disk group) are allowed.
E. COMPATIBLE.ASM and COMPATIBLE.ADVM need be ≥11.2; 12.1 is not required.

References

1. Oracle® Automatic Storage Management Administrator’s Guide 19c, Sec. “Overview of Oracle ADVM” & “Creating an ADVM Volume”, p.4-24, 4-29

2. Oracle® ACFS and ADVM White Paper, July-2019, p.7 (“one file system per volume”)

3. Oracle® Automatic Storage Management Administrator’s Guide 19c, Table 4-2 (“COMPATIBLE.ADVM attribute must be 11.2 or higher”)

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