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NEW QUESTION # 10
What is a consideration when using VPLEX RecoverPoint enabled consistency groups?
Answer: D
Explanation:
When using VPLEX with RecoverPoint enabled consistency groups, it's important to consider how journals are managed:
* Production Journals: These are used by the production volumes for logging write I/Os before they are replicated to the remote site or local copy.
* Local Copy Journals: These are used by the local copy volumes for the same purpose as production journals but are specific to the local copies.
* Separation of Journals: To ensure proper replication and recovery processes, production and local copy journals must be kept in separate consistency groups.This separation is crucial for maintaining the
* integrity of the replication and avoiding conflicts between production and local copy operations1.
* RecoverPoint Configuration: In a VPLEX environment, RecoverPoint provides continuous data protection and replication.It is configured to work with VPLEX consistency groups to ensure that all writes are captured and can be recovered in case of a failure1.
* Best Practices: Dell's best practices for VPLEX RecoverPoint configurations recommend this separation of journals to ensure that the system can handle failover scenarios correctly and that data is not lost or corrupted1.
By following this consideration, storage administrators can ensure that their VPLEX RecoverPoint environment is configured for optimal data protection and disaster recovery readiness.
NEW QUESTION # 11
At which layer of the director IO stack are local and distributed mirroring managed?
Answer: C
Explanation:
Local and distributed mirroring in a VPLEX environment are managed at the device virtualization layer of the director IO stack. Here's the explanation:
* Device Virtualization Layer: This layer is responsible for the creation and management of virtualized storage devices in VPLEX. It abstracts the physical storage and presents it as virtual volumes that can be accessed by hosts.
* Mirroring Management: Both local and distributed mirroring are configured at the device level.Local mirroring involves creating RAID-1 devices within the same VPLEX cluster, while distributed mirroring involves creating distributed devices across two VPLEX clusters12.
* Coherent Cache: The coherent cache layer is involved in maintaining cache coherency across the VPLEX clusters but does not manage the mirroring of devices.
* Storage View: The storage view layer is where hosts are mapped to virtual volumes. It does not manage the mirroring of devices but rather the access to them.
* Storage Volume: The storage volume layer represents the physical storage volumes from backend arrays before they are virtualized by VPLEX. It is not the layer where mirroring is managed.
By managing mirroring at the device virtualization layer, VPLEX ensures that data is protected and available across multiple storage systems, providing high availability and disaster recovery capabilities.
NEW QUESTION # 12
What is the maximum number of synchronous consistency groups supported by VPLEX?
Answer: C
NEW QUESTION # 13
What is a consideration for using a VPLEX logging volume?
Answer: B
Explanation:
When considering the use of a VPLEX logging volume, it is important to note that a logging volume must be created on each VPLEX cluster before creating a distributed device. This is because logging volumes play a critical role in the VPLEX architecture by capturing write logs that are essential for data consistency and recovery processes.
* Role of Logging Volumes: Logging volumes in VPLEX are used to store write logs that ensure data consistency across clusters, especially in distributed device configurations1.
* Creation Before Distributed Devices: Before a distributed device can be created, which spans across clusters for high availability, logging volumes must exist on each cluster to handle the write logging required for the distributed device1.
* VIAS and Automatic Provisioning: While VIAS (VPLEX Integrated Array Services) is a tool that simplifies storage provisioning tasks, and automatic provisioning can occur in certain scenarios, the creation of logging volumes is a prerequisite step that typically requires explicit action by the administrator before distributed devices are set up1.
* Sequence of Operations: The sequence of operations is such that logging volumes are created first, providing the necessary infrastructure for capturing write logs, followed by the creation of distributed devices that will utilize these logging volumes1.
By ensuring that logging volumes are created on each VPLEX cluster prior to the creation of distributed devices, administrators can maintain the integrity and high availability of data within the VPLEX environment.
NEW QUESTION # 14
How many copies can RecoverPoint maintain in a MetroPoint topology?
Answer: D
NEW QUESTION # 15
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