An XtremIO administrator is having a problem with performance and is troubleshooting the issue. What is an accurate statement about I/O transfers?
Answer : A
Large block I/O by nature incurs higher latency.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 6
Question 2
A customer is interested in transitioning their traditional infrastructure to the Cloud by implementing ViPR software-defined storage in an XtremIO environment. Which capabilities will EMC ViPR software-defined storage provide to XtremIO?
Answer : A
EMC ViPR Controller is a software-defined storage platform that abstracts, pools and automates a data center's underlying physical storage infrastructure. It provides data center administrators with a single control plane for heterogeneous storage systems.
ViPR enables software-defined data centers by providing features including:
* Comprehensive and customizable platform reporting capabilities that include capacity metering, chargeback, and performance monitoring through the included ViPR SolutionPack
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 60
Question 3
Where is the XtremIO VSS hardware provider package installed?
Answer : D
In order to use the XtremIO VSS provider it must be installed on the server where we want to do an application consistent snapshot.
References:http://muegge.com/blog/tag/xtremio/
Question 4
Which multipathing software is supported by XtremIO?
Answer : A
Noting the inefficiencies in VMware's NMP driver, EMC developed a set of drivers specifically designed to overcome these limitations and improve the performance and reliability of the data passing between an array and a server. EMC developed the PowerPath family of products optimized specifically for Linux, Microsoft Windows, and UNIX Operating Systems as well as PowerPath/VE for VMware vSphere and Microsoft Hyper-V hypervisors.
PowerPath is installed on hosts to provide path failover, load balancing and performance optimization VPLEX engines (or directly to the XtremIO array if VPLEX is not used).
Note: VMware, with the cooperation of its storage partners, developed a Native Multipathing Plug-in (NMP). VMware NMP was designed to distribute the load over all the available paths and provide failover protection in the case of path, port or HBA failure, but it has not been fully optimized to work with the controllers in a storage systems. VMware's NMP Round Robin policy does not have the intelligence that PowerPath has as PowerPath uses testing and diagnostics to continually monitor an environment to determine the optimal path for queuing requests and will adapt to current conditions.
A customer has the following requirements for their VDI deployment:
Which EMC technologies should be recommended?
Answer : A
The EMC RecoverPoint family provides cost-effective, local continuous data protection (CDP), continuous remote replication (CRR), and continuous local and remote replication (CLR) that allows for any-point-in-time data recovery and a new 'snap and replicate' mechanism for local and remote replication (XRP).
Splitter-based replication, using VPLEX
RecoverPoint splitter-based replication provides synchronous replication, continuous replication with fine recovery granularity (journal based), and replication for active-active datacenters.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 52
Question 6
What is a method to establish an XMCLI session?
Answer : D
The system's Command Line Interface (CLI) allows administrators and other system users to perform supported management operations. It is preinstalled on the XMS and can be accessed using the standard SSH protocol.
PuTTY is an SSH and telnet client.
The standard TCP port 22 has been assigned for contacting SSH servers.
You can login using the builtin xmsadmin account.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 50
Question 7
A storage administrator is adding both an XtremIO and third-party storage arrays to their existing infrastructure. The administrator is using ViPR SRM to monitor the environment.
Which requirement is needed to implement this solution?
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