D-XTR-OE-A-24 Reviews Questions

Offloaded Data Transfer (ODX) is a feature in Windows that enables efficient data transfer within or between compatible storage arrays, minimizing the host resources used during these operations.When a Microsoft Windows host is connected to an XtremIO array, leveraging ODX can significantly reduce the host’s CPU and network resource utilization during Volume Shadow Copy Service (VSS) operations1.

ODX Functionality: ODX offloads the data transfer workload from the host to the storage array itself.This means that data can be moved or copied within the array without passing through the host, thus not consuming host bandwidth or processing power1.

VSS Operations: During VSS operations, which create snapshots or backups of data, there can be a significant amount of data movement.Utilizing ODX allows these operations to be handled more efficiently by the storage array, freeing up the host to perform other tasks1.

XtremIO Compatibility: XtremIO supports ODX, which allows it to handle data movement operations internally.This is particularly beneficial in environments wherefrequent snapshots or backups are taken, as it ensures minimal impact on host performance1.

Other Options: While MPIO (OA) is used for path redundancy and load balancing, VAAI (OB) offloads certain storage operations to the array, and VSI (OC) is a set of VMware integration tools, none of these specifically address the reduction of host resource utilization during VSS operations as effectively as ODX1.

For synchronous replication from an XtremIO X1 cluster to a third-party array, the solution that enables this operation isVPLEX with RecoverPoint. Here’s why:

VPLEX: Dell EMC VPLEX is a virtualization and data mobility solution that allows for continuous availability and data mobility across arrays within a data center and over distance.It is often used in conjunction with RecoverPoint to provide synchronous replication1.

RecoverPoint: Dell EMC RecoverPoint offers continuous data protection with multiple replication options, including synchronous and asynchronous replication.It is designed to work with various storage arrays, including third-party arrays, providing flexibility in replication strategies1.

Combination of VPLEX and RecoverPoint: When combined, VPLEX and RecoverPoint offer a comprehensive solution that supports synchronous replication, ensuring zero data loss (RPO=0) and enabling consistency across sites.This combination is particularly useful when integrating XtremIO with third-party arrays1.

Native XtremIO Replication: While XtremIO does offer native replication capabilities, these are typically asynchronous and are designed to work within the XtremIO ecosystem.For synchronous replication, especially to a third-party array, the native replication may not be sufficient1.

RecoverPoint for VMs: This variant of RecoverPoint is specifically designed for virtual environments and may not be the best fit for array-based synchronous replication requirements1.

Therefore, the correct answer isVPLEX with RecoverPoint(OD), as it provides the necessary infrastructure and capabilities for synchronous replication from an XtremIO X1 cluster to a third-party array, ensuring data consistency and zero data loss during the replication process1.

When using XtremIO storage arrays for Oracle ASM disk groups, the recommended redundancy type is typically external redundancy.This is because XtremIO arrays are built with inherent data protection and redundancy features that eliminate the need for additional mirroring at the ASM level1.

External Redundancy: With external redundancy, Oracle ASM does not mirror data within the disk group. Instead, it relies on the underlying storage system to provideredundancy and data protection.XtremIO’s unique data protection scheme, XDP (XtremIO Data Protection), provides such redundancy1.

XtremIO Features: XtremIO arrays are designed with high levels of fault tolerance and include features like SSD failover and advanced error correction.These features ensure data integrity and availability, making external redundancy a suitable choice1.

Performance Considerations: Choosing external redundancy can also lead to better performance since it avoids the overhead of additional mirroring at the ASM level, which is unnecessary given XtremIO’s capabilities1.

Best Practices: Dell EMC recommends using external redundancy for ASM disk groups when using storage arrays like XtremIO that provide their own robust data protection mechanisms1.

In summary, for Oracle ASM disk groups using XtremIO storage arrays, external redundancy (OC) is the recommended setting, as it leverages the array’s built-in redundancy features and optimizes performance1.