What is a valid QoS performance setting?
- A . latency threshold
- B . IOPS minimum
- C . IOPS limit
- D . MB/s minimum
C
Explanation:
QoS-Limit allows a user to limit either the IOP or MB/s performance of a specific workload. Having the ability to limit both IOPS and MBs is important as quite often any single workload will have different peaks and troughs during the operational day. For instance, an OLTP workload maybe very latency sensitive to small block updates during the working day when rows and tables are frequently being accessed or updated (this will tend to be very IOP/latency sensitive) yet in the evening the same database maybe receiving feeds from other systems (or providing bulk updates/analysis or index rebuilds), the same application will cease to be IOP sensitive and will now be bandwidth (MBs) sensitive. In NimbleOS4 a user can limit a workload by either IOPS or MBs and also specify limits to both IOPS and MBs. If either limit is reached then the volume will be restricted accordingly.
Reference: https://community.hpe.com/t5/HPE-Storage-Tech-Insiders/NimbleOS-4-Quality-of-Service-QoSLimits/ba-p/6986455#.XBEAvMRR2kw
Which prerequisites must be fulfilled before starting the array initialization? (Choose three)
- A . HPE Nimble Windows Toolkit installed on a server/laptop.
- B . Ensure your laptop/server IP has a static IP address configured on the same subnet as the array management interface.
- C . Array updated to the latest firmware.
- D . All switch configurations done like flow control and spanning tree.
- E . Array registered in InfoSight based on the serial number.
- F . HPE Service Processor deployed
What are primary HPE Nimble SmartReplicate components? (Choose three.)
- A . partner
- B . snapshot schedule
- C . replication group
- D . sync partner
- E . throttle
How are RAID groups organized for the disks in bank A and bank B in the AF-Series array?
- A . They construct a single RAID group if types of disks match.
- B . They construct a single RAID group without any conditions.
- C . They construct a single RAID group if they are deployed together.
- D . They are constructed into separate RAID groups
What flash to disk ratio is typical for optimal read performance?
- A . 20-25% flash capacity
- B . 15-20% flash capacity
- C . 10-15% flash capacity
- D . 5-10% flash capacity
What are the correct AF series read operations?
- A . Check DRAM. Check NVDIMM. Retrieve from SSD. Validate checksum, decompress, dedupe, and return data.
- B . Check NVDIMM. Retrieve from SSD. Validate checksum, decompress, dedupe, and return data.
- C . Check NVDIMM. Check DRAM. Retrieve from SSD. Validate checksum, decompress, dedupe, and return data.
- D . Check SSD. Check NVDIMM. Check DRAM. Validate checksum, decompress, dedupe, and return data.
How does HPE InfoSight predict and prevent problems? (Choose three.)
- A . Performs global correlations and learn from all systems worldwide.
- B . Use Triple+ parity RAID for ultimate data protection.
- C . Collect rich telemetry data from across the entire infrastructure stack.
- D . Use intelligent housekeeping processes for deduplication and compression.
- E . Use proactive fault detection with remote call home diagnostics through HPE Service Processor.
- F . Process the information through a combination of predictive analytics.
How do AF-Series arrays perform sequential stripe write operations?
- A . hole filling
- B . write full stripes
- C . write into zone
- D . write in place
DRAG DROP
List in the correct order the steps of a full disaster recovery scenario.
What is the correct power on/off order of the All Flash-Series? (Choose two.)
- A . power off the controller shelf first, then the expansion shelves
- B . power on controller shelf first, then the expansion shelves
- C . power on expansion shelves first, then the controller shelf
- D . power off the expansion shelves first, then the controller shelf
A,C
Explanation:
Reference: https://www.reddit.com/r/storage/comments/3ii6dt/nimble_array_remote_shutdown_during_power_outage/
Which compression algorithm do all HPE Nimble arrays use?
- A . PPM
- B . bzip2
- C . LZ4
- D . LZ77
Which properties of volumes must be the same in order for deduplication to take place between them? (Select two.)
- A . They must both be unable to be replicated
- B . They must both have compression disabled
- C . They must have the same block size
- D . They must have the same app category
Which AF-Series configurations will provide maximum performance and capacity?
- A . 4x AF900Q arrays, without extra shelves
- B . 4x AF9000 arrays, each with two all-flash shelves
- C . 6x AF5000 arrays, each with two all-flash shelves
- D . 6x AF5000 arrays, without flash shelves
Which snapshot technology do HPE Nimble arrays use?
- A . ROW
- B . ROW with sweeping
- C . COW
- D . COW with sweeping
- E . ROW with defragmentation
What is the size of a sequential stripe write for the AF-Series?
- A . 8MB
- B . 10MB
- C . 256MB
- D . 1GB
B
Explanation:
Reference: Nimble introduction and admin.pdf
When is it possible to merge two replication partners?
- A . any time
- B . when you get an extra license
- C . when you disable/break replication first
- D . never
Which compute cloud services are compatible with HPE Cloud Volumes? (Choose two.)
- A . Amazon Web Services
- B . IBM Cloud
- C . Google Cloud Platform
- D . HPE Hybrid Cloud
- E . Microsoft Azure
A,E
Explanation:
Reference: https://www.hpe.com/emea_europe/en/storage/cloud-volumes.html
A customer wants to use VVols on its HPE Nimble array.
What is a prerequisite?
- A . FC connectivity to the array
- B . AF-series arrays only
- C . NCM for vsphere 6.0 or higher
- D . HPE Nimble VMware Integration license
Which technology is utilized by AF-Series deduplication?
- A . XORing
- B . block-by-block compare
- C . MD5 hashing
- D . SHA2-256 encryption
How do HF-Series arrays handle caching since NimbleOS 2.2+?
- A . access-based eviction
- B . first in, first out (FIFO)
- C . Adaptive Flash Cache (AFC)
- D . Most Recently Used (MRU)
Which technology is being used to protect the contents of the NVDIMM in the event of an unexpected power loss to the AF-Series array?
- A . TwinCap
- B . Ni-Cd battery
- C . UltraCAp
- D . Ni-MH battery
Why does HPE recommend configuring an NTP server during array initialization?
- A . This will help ensure logs and events are easy to follow based on a known timeline.
- B . It guarantees data consistency when using Triple+ RAID combined with snapshotting.
- C . It is mandatory for InfoSight integration.
- D . It is required for replication across arrays.
Which kind of licensing approach do HPE Nimble arrays use?
- A . capacity-based licensing
- B . controller-based licensing
- C . all-inclusive licensing
- D . frame-based licensing
DRAG DROP
List in the correct order what the system will do when you perform a handover action.
What are valid HPE Nimble Windows Toolkit (NWT) prerequisites? (Choose three.)
- A . MPIO enabled
- B . running iSCSI service
- C . Microsoft PowerShell 3.0
- D . .NET Framework 4.5.2 or above
- E . Java JRE 1.6.0 or above
What are primary components of AF controller head shelf? (Choose three.)
- A . removable NVDIMM
- B . hard disk drives
- C . solid state disks
- D . dual power supplies
- E . dual controllers
- F . management controller
C,D,E
Explanation:
Reference: NTS-2001-I_Nimble_Introduction_and_Admin.pdf
Which tool do you need to use to manage multiple HPE Nimble arrays from one single console for true scaleout management?
- A . InfoSight
- B . Nimble WebUI
- C . Global Dashboard
- D . OneView
What are the recommended tests you should run after the initial setup? (Choose two.)
- A . zoning validation
- B . email alert setup test
- C . data access verification
- D . controller failover test