Dell EMC DEE-1111 Expert - PowerMax and VMAX All Flash Solutions Exam Practice Test

Answer : B

While using DELL EMC Data Erasure on a PowerMax, the minimum number of overwrites needed to support compliance with internal policies and regulatory requirements is 3. The application has prompts and notifications.Such as the option to choose the number of Media Eraser 'wipes' (3x times, 5x times or 7x times)1.Reference:Dell EMC Community Network

Answer : B

When expanding the capacity of a three-brick PowerMax 8000 running PowerMaxOS 5978.444.444 configured with Flash Drives RAID 5 (7+1) with SCM drives, the minimum supported configuration is 1x RAID 5 (7+1) added to each brick.This ensures that each brick has additional capacity and maintains the balance of storage across all bricks2.Reference:Dell EMC PowerMax Family Product Guide PowerMaxOS,Dell PowerMax Family Site Planning Guide PowerMax 2000 and PowerMax 8000,POWERMAX FAMILY PowerMax 2000 and 8000 - Dell Technologies Partner Portal

Answer : A

Fast Write is a Dell EMC technology that improves Fibre Channel (FC) replication between sites in a SRDF/S configuration. When a write I/O is issued by the host to the R1 device, SRDF with Fast Write acknowledges the write to the host as soon as the data is stored in the R1's cache and transmitted to the R2's cache. This results in reduced latency and improved performance for FC replication between sites.

https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h17118_dell_emc_powermax_family_overview.pdf

https://infohub.delltechnologies.com/l/dell-emc-powermax-and-vmax-all-flash-srdf-metro-overview-and-best-practices-1/srdf-metro-overview/

Answer : D

In an SRDF/Metro configuration with bias setting, if there is a failure at the R1 array (which is configured as the bias side), the R2 device automatically becomes the active device. This means that even if there's a failure on the R1 side, operations can continue on the R2 side without interruption, ensuring high availability.

https://infohub.delltechnologies.com/l/dell-emc-powermax-and-vmax-all-flash-srdf-metro-overview-and-best-practices-1/understanding-bias

Answer : B

When the cache space fills up, I/O will be queued until an empty cache slot is available. This is because PowerMax operates as a cache-centric architecture, where all data is passed through cache before being stored on disk. Cache is used to buffer incoming and outgoing data, as well as to support various functions such as replication and data reduction. When cache is full, the array cannot accept any more data until some cache slots are freed up by flushing data to disk or invalidating stale data. Therefore, answer B is correct.

A, C, and D are incorrect because they do not describe what happens when cache space fills up. I/O will not be serviced at the speed of the destination device (A), as this would bypass the cache and degrade performance. Cache is not permanently flushed or temporarily disabled (D), as this would result in data loss or corruption.

Answer : B

If an administrator has added custom SSL certificates and each time a client connection is made, default certificates are used, then 'restart storsrvd' must be completed.This is because changes to SSL certificates often require a restart of the service that uses them in order for the new certificates to be correctly loaded and used for future client connections1.

Answer : D

In a SRDF/Metro deployment in a clustered host configuration, when the RDF link state is partitioned and the R1 side has full read/write capability to the application, the R2 device also has full read/write capability to the application. With SRDF/Metro, both R1 and R2 devices may then appear as a single virtual device across the two SRDF paired arrays for host presentation.With both the R1 and R2 devices being accessible, the host or hosts (in the case of a cluster) can read and write to both R1 and R2 devices with SRDF/Metro ensuring that each copy remains current, consistent, and addressing any write conflicts which may occur between the paired SRDF devices23.Reference:Dell EMC PowerMax and VMAX All Flash: SRDF/Metro Overview and Best Practices,Deploying Dell EMC SRDF/Metro Smart DR with Microsoft SQL Server for Physical and Virtual Environments