Oracle ZFS Storage ZS3 Implementation Essentials
Question No: 41
Hybrid Columnar Compression is unique to Oracle Storage.
How many times can you get better compression with HCC versus competitive options?
Question No: 42
What does the term quot;datalinkquot; refer to when setting up the network configuration on a ZFS Storage Appliance?
Configuring IP addresses
Managing devices utilized by interfaces
Connecting a target to a LUN
Linking multiple IP addresses to sources
Question No: 43
Identify three valid thresholds used by the Status Dashboard.
Explanation: Dashboard ThresholdsThe following icons indicate the current state of monitored statistics with respect to user-configurable thresholds set from within Settings. Icon
Description Icon Description
image:Dashboard: Threshold sunny Sunny
image:Dashboard: Threshold hurricane hurricane
image:Dashboard: Threshold partly cloudy partly cloudy
image:Dashboard: Threshold hurricane class 2 hurricane class 2
image:Dashboard: Threshold cloudy Cloudy
image:Dashboard: Threshold hurricane class 3 hurricane class 3
image:Dashboard: Threshold rainy Rainy
image:Dashboard: Threshold hurricane class 4 hurricane class 4
image:Dashboard: Threshold stormy stormy
image:Dashboard: Threshold hurricane class 5 hurricane class 5
Reference: http://docs.oracle.com/cd/E27998_01/html/E48433/user_interface icons.html
Question No: 44
Which is the only mode in which the SRP service can operate?
Explanation: The SRP service may only operate in target mode. SRP targets have the following configurable properties.
http://docs.oracle.com/cd/E27998_01/html/E48433/configuration san srp.html
Question No: 45
Which storage profile serves data the fastest for random disk IOPS?
Explanation: Using RAID-5
The conventional wisdom among database professionals is that RAID-5 is evil and should be avoided regardless of the situation. The primary issue with RAID-5 is that in addition to a parity calculation, each logical write requires many physical writes. The performance effects of this are most keenly felt on systems with a high write percentage, and are made worse in cases where there is not enough RAM. It follows that on systems with a low write percentage, and on those with sufficient memory, RAID-5 may not be such a performance killer as many make it out to be. The bottom line is that, depending on the IO profile and the storage implementation, the performance difference between a RAID-5 and a RAID-10 array may not be discernable at all, and the extra costs of a RAID-10 array may be better spent elsewhere.
Question No: 46
A storage administrator needs to restore data from a snapshot. Identify three valid solutions.
Mount the snapshot LUN and copy the data back.
Clone the snapshot LUN and copy the data back.
Click the rollback icon of a snapshot.
Mount the share, change directories into the .zfs directory of the share, find the snapshot (time sequenced), and copy the data.
Backup and restore the data from tape.
Question No: 47
Which two maintenance workflows does the Oracle ZFS Storage plug-in for Oracle Enterprise Manager Grid controller provide?
Add agents for Oracle Enterprise Manager Monitoring.
Configure for Oracle Enterprise Manager Monitoring.
Unconfigure for Oracle Enterprise Manager Monitoring.
Assign agents for Oracle Enterprise Manager Monitoring pool.
Explanation: The Sun ZFS Storage plug-in for Oracle Enterprise Manager Grid controller provides first-class monitoring to the grid controller environment for the Sun ZFS Storage appliance family with the ability to:
->Monitor Sun ZFS Storage appliances
->Gather storage system information, configuration information and performance information of accessible storage components
->Raise alerts and violations based on thresholds and monitoring information collected by the tool
->Provide out-of-the-box reports that complement analytics
->Support monitoring by remote agents.
Once an appliance is configured to be monitored by the grid controller, analytics worksheets and datasets are created to bridge the grid controller administrator#39;s view to the deeper level of detail provided by the real-time analytics available within the appliance.
The management plug-in is available at the following link: Oracle Technology Network
It is packaged with an installation guide that should be read by both administrators of the grid controller and storage administrators of appliances being monitored.
Included with each appliance are two workflows that are used respectively to prepare a system for monitoring, or to remove the artifacts created for the monitoring environment:
->Configure for Oracle Enterprise Manager Monitoring
->Unconfigure Oracle Enterprise Manager Monitoring
Question No: 48
Streaming read workloads are usually best served from .
DRAM, followed by pool disks
Read cache devices (Readzillas)
DRAM, followed by read cache devices
DRAM, followed by read cache devices, and then pool disks
Log devices (Logzillas)
Question No: 49
A storage administrator has identified that the storage system has plenty of storage space available. Which storage profile should be used when both high performance and high reliability are required?
Single-parity RAID, narrow stripes
Question No: 50
Which are the four key attributes to set up ZFS storage appliance for Microsoft Exchange?
Blocksize 4k El
Enable Read/Write SSD
Serial number of ZFS storage appliance