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A customer is interested in purchasing XtremIO for their mission critical database applications that require the lowest possible response times. They have two data centers in which they want to introduce All-Flash arrays. However, they need a way to maintain true active/active access to all databases and application LUNs across both sites.
What is the recommended solution to address the requirements?
The EMC VPLEX family is the next-generation solution for data mobility and access within, across and between data centers.
VPLEX supports two configurations, local and metro. In the case of VPLEX Metro with the optional VPLEX Witness and Cross-Connected configuration, applications continue to operate in the surviving site with no interruption or downtime. Storage resources virtualized by VPLEX cooperate through the stack, with the ability to dynamically move applications and data across geographies and service providers.
A customer has decided to use VMware Horizon View as their desktop virtualization technology. Their VDI environment will consist of XtremIO storage and ESXi hosts. They are looking for increased speed and low latencies while performing file copy operations.
What should the setting for VAAI XCOPY I/O size be set to in order to achieve this requirement?
The VAAI XCOPY I/O size of 256 kB gives the best performance. 4 MB is the default value.
References: https://www.emc.com/collateral/white-papers/h14279-wp-vmware-horizon-xtremio-design-considerations.pdf, page 57
A customer has the following requirements for their VDI deployment:
Which EMC technologies should be recommended?
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
How should a storage administrator navigate to different XtremIO clusters from the XMS GUI if the administrator has more than one cluster managed by the same XMS?
From the menu bar, the Inventory icon is to be clicked to display the Inventory workspace. This workspace takes the place of the Hardware workspace in earlier versions of the XtremIO GUI. With the All Clusters tab selected, we can see a list of all the hardware elements in the managed clusters.

Note: With time, additional clusters can be added to a deployed XMS. In addition, a cluster can be easily moved from one XMS to another. All management interfaces (GUI/CLI/REST) offer inherent multi-cluster management capabilities. Multiple cluster management is supported from version 4.0 and up.
References:
As shown in the exhibit, a customer's environment is configured as follows:
What should be the host queue depth setting per path?
The queue depth is perLUN, and not perinitiator. Here there are 64 LUNs, each visible through 4 paths, which would indicate that 256 is a good choice for the queue depth setting.
Note: As a general advice, for optimal operation with XtremIO storage, consider the following: Set the queue depth to 256.
References:https://www.emc.com/collateral/white-paper/h14583-wp-best-practice-sql-server-xtremio.pdf
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