1Z0-547 | Leading 1Z0-547 Exam Study Guides With New Update Exam Questions
Q1. Which three of the following are good reasons to have multiple pools configured?
A. There is a need to have different RAID levels
B. There are multiple workload types sharing the same 7000-series system
C. It allows SSDs to be shared across pools
D. There is a need to separate different storage environment from each other’s (i.e., production, development)
Answer: A,B,D
Explanation: Configuring multiple poolson the same host is only recommended when drastically different redundancy or performancecharacteristics are desired, for example a mirrored pool and a RAID-Z pool. With the ability tocontrol access to log and cache devices on a per-share basis, the recommended mode of operation is a single pool.
Q2. Remote replication is optimized for which three use cases?
A. Replication can be used to distribute data (such as virtual machine images or media) to remote systems across the world.
B. Replication can be used to migrate data and configuration when upgrading hardware.
C. Replication can be configured from an appliance to itself or its cluster peer for redundancy.
D. Replication can be used to mirror an appliance for disaster recovery
Answer: A,D
Explanation: Remote replication (or just "replication") is ageneral-purpose feature optimized for the following use cases:
* Data distribution (A)
Replication can be used to distribute data (such as virtual machine images or media) to remote systems across the world in situations where clients of the target appliance wouldn't ordinarily be able to reach the source appliance directly, or such a setup would have prohibitively high latency. One example uses this scheme for local caching to improve latency of read-only data (like documents).
* Data migration (B)
Replication can be used to migrate data and configuration between 7000 series appliances when upgrading hardware or rebalancing storage. Shadow migration can also be used for this purpose.
*Disaster recovery(D)
Replication can be used to mirror an appliance for disaster recovery.
Reference: Sun ZFS Storage 7000 System Administration Guide, Remote Replication Introduction
Q3. Worksheets can be exported as part of a support bundle.
A. True
B. False
Answer: A
Explanation: BUI commands includes: *send worksheet with support bundle *upload a support bundle that includes this worksheet, allowing for off-line analysis of your system by your support provider. You should only do this if you have been explicitly asked to upload such a bundle by support personnel.
Q4. Which configuration provides maximum availability and performance?
A. Triple parity RAID
B. Triple mirrored
C. Triple striped
D. Quad parity
E. Quad parity with mirroring
Answer: B
Explanation: Triple mirrored Data is triply mirrored, reducing capacity by one third, but yielding a very highly reliable and high-performing system. This configuration is intended for situations in which maximum performance, and availability are required while capacity is much less important (for example, database storage).
Reference: Sun ZFS Storage 7000 System Administration Guide, Triple mirrored
Q5. Which three items are available via the Status Dashboard in the Browser User Interface (BUI)?
A. Summary of storage pool and main memory usage
B. Known hardware faults
C. Status of each physical network port
D. Status of services on the appliance
Answer: A,B,D
Explanation: The Status > Dashboard screen provides a view of storage(A), memory(A),
services(D), hardware,activity,and recent alerts.
B: Hardware
This area of the Dashboard shows an overview of hardware on the appliance.
Faults
If there is a known fault, the amber fault icon appears.
D:Services This area of the Dashboard shows the status of services on the appliance, with a light icon to show the state of each service.
Reference:Sun ZFS Storage 7000 System Administration Guide,Dashboard
Q6. You have issue with performance characteristics of a specific version of NFS and would like to disable this version. What is a good resolution?
A. disabling the NFSv4 delegation
B. setting the NFS minimum and maximum versions to the same value as another NFS version number
C. reducing the maximum number of concurrent NFS requests allowed
D. enabling iSNS discovery
Answer: B
Explanation: NFS properties include: *Minimum supportedversion Controls which versions of NFS are supported *Maximum supportedversion Controls which versions of NFS are supported
Note:NFS (Network File System) is an industry standard protocol to share files over a network. NFSversions 2, 3, and 4 are supported.
Reference: Sun ZFS Storage 7000 System Administration Guide,NFS properties
Q7. What is used by the 7000-series systems to provide FC target multi-pathing support?
A. Symmetric LUN pathing
B. Asymmetric multi-initiator pathing
C. Asymmetric Logical Unit Access
D. FC Multi-pathing access
E. Uni-symmetrical Unit access
Answer: C
Explanation: The Sun ZFS Storage 7000 series uses Asymmetric Logical Unit Access (ALUA) to provide FC target multipathing support.
Reference: Sun ZFS Storage 7000 System Administration Guide, Configuring FC Client Multipathing
Q8. Which three items can be answered using Analytics?
A. Which files are being accessed from a specific client
B. Which files are corrupt
C. Which LUNS are being written to
D. CPU utilization
E. Power utilization
Answer: A,C,D
Explanation: A, C: The analytics can show:- what files are being accessed from a specific client
(A) - what LUNS are being written to (C)- what clients are making CIFS requests- what NFS files are currently being accessed- how long NFS operations are taking- what is the read/write mix for a specific file, by a specific client- how long are writes taking to a specific file at a specific offset in that file D:For example, a performance issue may be experienced and the following high level statistics arechecked first: *Network bytes/sec *NFSv3 operations/sec *Disk operations/sec *CPU utilization
Note:Analytics is an advanced facility to graph a variety of statistics in real-time and record this datafor later viewing. It has been designed for both long term monitoring and short term analysis. When needed, it makes use ofDTrace to dynamically create custom statistics, which allowsdifferent layers of the operating system stack to be analyzed in detail.
Reference:Sun Storage 7000 Analytics Overview
http://ctistrategy.com/2008/12/17/sun-storage-7000-analytics-overview/
Q9. A clustered controller must contain spare resources (such as networking ports) to accommodate a failover.
A. True
B. False
Answer: B
Explanation: Network device, datalink, and interface failures do not cause the clustering subsystem to consider a head to have failed. To protect against network failures a whether inside or outside the appliance a IPMP and/or LACP should be used instead. These network configuration options, along with a broader network-wide plan for redundancy, are orthogonal to clustering and are additional components of a comprehensive approach to availability improvement.
Reference: Sun ZFS Storage 7000 System Administration Guide,Clustering Considerations forNetworking
Q10. Analytics provides .
A. A graphical view of iostat statistics, when can be customized to provide lower-level detail.
B. Real-time CPU and power statistics to maximize utilization and minimize power consumption.
C. A graphical view of Solaris kstat performance statistics, which can be customized to provide lower-level detail.
D. Real-time graphs of various statistics, which can be saved for later viewing.
Answer: D
Explanation: Analytics provides real time graphs of various statistics, which can be saved for later viewing
Analytics is an advanced facility to graph a variety of statistics in real-time and record this data
for later viewing. It has been designed for both long term monitoring and short term analysis.
When needed, it makes use of DTrace to dynamically create custom statistics, which allows diferent layers of the operating system stack to be analyzed in detail. Reference:Sun ZFS Storage 7000 Analytics Guide