E20-542 Exam Questions

A VMAX3 storage administrator notices that some devices have different FA addresses on different ports within the same Masking View. Which setting could have been used to avoid thi...

A storage administrator uses Unisphere for VMAX to provision new storage from a VMAX3 array. Which Workload Type is recommended for a combination of small and large block I/O workl...

A customer wants to know if they will need to enable Dynamic RDF capability for their VMAX3 devices used for SRDF. What information should be provided to the customer?

A customer wants to know if they need to set the SCSI3_persist_reserve attribute for their VMAX3 devices used in a clustered environment. What information should be provided?

What is a requirement before a VMAX3 thin device can be deleted?

What is a requirement before a port can be disassociated from an FA emulation on a VMAX3?

What is a requirement before a port can be disassociated from an RF emulation on a VMAX3 array?

You are discussing requirements for a proposed VMAX3 solution with a customer. The customer is concerned about the port flags that need to be set for the different open system serv...

What is the effect of a failed Suitability Check while provisioning storage on a VMAX3?

Which Unisphere for VMAX feature helps determine if a VMAX3 storage provisioning request will be SLO compliant?

When is the Suitability Check run on a VMAX3?

What does it mean if a Storage Group is listed as "Critical" in Unisphere for VMAX?

A storage administrator uses Unisphere for VMAX to review VMAX3 Storage Group SLO compliance. What are valid SLO compliance states?

How do Service Level Objectives (SLO) capacity compliance algorithms differ from Storage Resource Pools (SRP) capacity compliance algorithms?

A company has two VMAX3 arrays installed at two different sites. VMAX3 eNAS is configured on both arrays with IP network connectivity between them. The company wants to replicate f...

A company has two VMAX3 arrays installed at two different sites. VMAX3 eNAS is configured on both arrays with IP network connectivity between them. The company wants to make multip...

A customer wants to migrate their file environment to their existing VMAX3. They want to add the eNAS feature to their VMAX3. What advice should be provided to the customer?

A new VMAX3 with eNAS was implemented at a manufacturing company. After storage has been provisioned to the Data Movers, which software is used for NAS management?

You have been tasked with designing a new VMAX3 array with VMAX Sizer. The customer is interested in SRDF/A and TimeFinder SnapVX for some of their applications. Which VMAX Sizer p...

You are designing an SRDF/S solution. Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. The workload profile is as fo...

You are designing an SRDF/S solution. Network bandwidth can be purchased in increments of single OC1 (52 Mb/s) links. Data compression is not in use. The workload profile is as fol...

You are designing an SRDF/S over Fibre Channel solution. Data centers are 50 km apart and 4 Gb/s FC links are in place. What is the minimum number of buffer-to-buffer credits requi...

You are designing an SRDF/S over Fibre Channel solution. Data centers are 100 km apart and 4 Gb/s FC links are in place. What is the minimum number of buffer-to-buffer credits requ...

What is the benefit of the Link Capacity Adjustment Scheme in an SRDF deployment over a SONET circuit?

Which benefit does SiRT provide for SRDF/S over Fibre Channel solutions?

What is the effect of block size on response times in an SRDF/S environment?

A proposed SRDF/S solution was modeled with BCSD. The model assumed that the source array had two RFs. The RA Utilization chart shows the maximum utilization is at 80%. How many RF...

A proposed SRDF/S solution was modeled with BCSD. The model assumed that the source array had 4 GigE ports. The RA Utilization chart shows the maximum utilization is at 70%. How ma...

What is the effect of block size on response times in an SRDF/S environment?

A customer wants to implement SRDF/S for an application. The application is performing at 10,000 IOPS and is using many volumes. The size of the I/O is 4 KB. Forty percent (40%) of...

A customer wants to implement SRDF/S for an application. The application is performing at 12,000 IOPS and is using many volumes. The size of the I/O is 4 KB. Thirty percent (30%) o...

You are designing SRDF/S over GigE between two VMAX3 arrays. The production and remote data centers are 100 km apart. What is the expected write response time delay due to latency?

You are designing SRDF/S over Fibre Channel between two VMAX3 arrays. The production and remote data centers are 100 km apart. What is the expected write response time delay due to...

What does the BCSD Write Load Adjustment Factor account for when designing SRDF solutions?

What is a consideration when designing an SRDF/A solution between a VMAX3 array and an older VMAX 40K array?

You are designing an SRDF/A solution between two VMAX3 arrays. The customer wants to know what will happen to an active SRDF/A session if there is a temporary link loss. What infor...

You need to model several SRDF/A workloads that require data consistency across all sessions. How should the multiple SRDF/A sessions be modeled?

You are in the process of designing an SRDF/A MSC solution with BCSD. Which BCSD component is required for a successful SRDF/A MSC design?

What is a difference between SRDF/A multi-cycle mode and the legacy mode?

A customer wants to configure a large SRDF deployment between two VMAX3 arrays. The customer has many different applications and workloads. They want to separate each into its own...

Which legacy TimeFinder technologies are supported by TimeFinder SnapVX emulation mode?

What is the maximum number of linked targets that TimeFinder SnapVX supports?

Where will TimeFinder SnapVX snapshot deltas be stored on a VMAX3 array?

A customer has production and disaster recovery VMAX3 arrays. There is limited bandwidth between the sites. The amount of data which will be replicated by using SRDF to the disaste...

A customer is using two VMAX3 arrays with a compression module installed on both arrays. After careful monitoring of the SRDF traffic, they discover that the data is not being comp...

You have configured Open Replicator between a new VMAX3 array and a VMAX. A host is connected to the VMAX3 array and a control device is configured to pull data from a remote devic...

A customer needs to automate SRDF disaster recovery for a Microsoft cluster. Which SRDF solution is recommended?

When data consistency is not a requirement, which SRDF mode is preferred when replicating large volumes of data?

The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An...

The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An...