You plan to use the In Database Archiving feature of Oracle Database 12c, and store rows that
are inactive for over three months, in Hybrid Columnar Compressed (HCC) format.
Which three storage options support the use of HCC?
A.
ASM disk groups with ASM disks consisting of Exadata Grid Disks.
B.
ASM disk groups with ASM disks consisting of LUNS on any Storage Area Network array
C.
ASM disk groups with ASM disks consisting of any zero padded NFS-mounted files
D.
Database files stored in ZFS and accessed using conventional NFS mounts.
E.
Database files stored in ZFS and accessed using the Oracle Direct NFS feature
F.
Database files stored in any file system and accessed using the Oracle Direct NFS feature
G.
ASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays
Explanation:
HCC requires the use of Oracle Storage – Exadata (A), Pillar Axiom (G) or Sun ZFS
Storage Appliance (ZFSSA).
Note:
* Hybrid Columnar Compression, initially only available on Exadata, has been extended to support
Pillar Axiom and Sun ZFS Storage Appliance (ZFSSA) storage when used with Oracle Database
Enterprise Edition 11.2.0.3 and above
* Oracle offers the ability to manage NFS using a feature called Oracle Direct NFS (dNFS). Oracle
Direct NFS implements NFS V3 protocol within the Oracle database kernel itself. Oracle Direct
NFS client overcomes many of the challenges associated with using NFS with the Oracle
Database with simple configuration, better performance than traditional NFS clients, and offers
consistent configuration across platforms.
A,E,G
Amy thoughts about this question?
According to this article one answer is “E”
This paper illustrates the implementation of Hybrid Columnar Compression (HCC) for Oracle Database
tables and partitions which reside on an Oracle ZFS Storage Appliance. It covers implementation of Hybrid
Columnar Compression on Oracle ZFS Storage Appliance-resident direct Network File System (dNFS)
shares, Automatic Storage Management (ASM) disk groups on dNFS shares, and ASM disk groups on
LUNs (iSCSI or Fibre Channel [FC]).
Highlighted in this paper are:
• Overview of the Oracle ZFS Storage Appliance
• Overview of Hybrid Columnar Compression
• Implementation of Hybrid Columnar Compression on dNFS shares without ASM
• Implementation of Hybrid Columnar Compression using ASM on dNFS shares
• Implementation of Hybrid Columnar Compression using ASM on iSCSI and Fibre Channel LUNs
Source:
http://www.oracle.com/technetwork/server-storage/sun-unified-storage/documentation/problemsolver-hcc-52014-2202692.pdf
The bellow makes me think that “A”,”G” answer is also correct.
“HCC requires the use of Oracle Storage – Exadata, Pillar Axiom or Sun ZFS Storage Appliance (ZFSSA)”
AEG
A E and G
AEG – OK
HCC requires the use of Oracle Storage – Exadata, Pillar Axiom or Sun ZFS Storage Appliance (ZFSSA).
Oracle ZFS Storage Appliance – resident direct Network File System (dNFS)
AEG
AEG
A, E, G are Correct answers.
AEG