E20-515 Exam Questions

What are the slices on the physical disks in a Symmetrix called?

A customer uses TimeFinder/Snap for local replication in a Symmetrix VMAX. The customer recently added a VMAX at the disaster recovery site and enabled SRDF/A. The customer wants t...

Click on the calculator icon in the upper left. A customer requested assistance in using the symcli symconfigure command to create one 8-way 1 TB striped meta bound to POOL_A. Whic...

Which Unisphere for VMAX view shows all the components of a masking view including the members of the various groups (port, storage and initiator)?

What are two characteristics of Autoprovisioning Port Groups in a Symmetrix VMAX family array?

A customer has created a masking view for a host including several new thin devices, but they are presented as not ready. What step needs to be performed?

When planning a configuration using a Symmetrix Thin Pool what is a design consideration for use by an application?

How is data read from a compressed track on a Symmetrix thin device?

What is a valid consideration when using a meta volume?

Where does the Consistent LUN option need to be set to ensure that each device is presented with the same LUN address on each port?

A customer needs to replace an HBA on an existing host connected to their Symmetrix VMAX array and is unsure how to update the host masking to reflect the new HBA WWN. What is the...

Which Symmetrix VMAX Autoprovisioning groups can be cascaded?

A customer needs to enable the Volume Set Addressing flag for an HP-UX host. Where should the flag be set if the VMAX FAs to be used are shared with other open systems hosts?

What is the maximum number of cylinders allowed for a single volume in a Symmetrix VMAX array?

Which types of locks can be taken during a configuration change session?

A Symmetrix VMAX 40K with 6 engines can have a maximum of how many Terrabytes (TB) of compressed data?

A Symmetrix VMAX customer is using Virtual Provisioning. A thin pool has been created and ten 10 GB data devices have been added and enabled. The Maximum Subscription Percent has b...

A Symmetrix VMAX customer created five thin devices and added them to a storage group. The storage group is part of a masking view for an HP-UX Server. The administrator scans for...

A customer is decommissioning a Windows 2003 server which has access to Symmetrix VMAX thin devices. The objective is to free up space on the array. What needs to be done?

When adding new disks to a VMAX, which lock is taken to perform this activity?

The customer has noticed when using SYMCLI and VMAX and Unisphere responses to commands are unusually slow. What might be the problem?

What is an optimized read miss on a Symmetrix VMAX 40K?

A customer needs four (4) 500 GB volumes for a new mission critical database project. Their Symmetrix VMAX 10K is pre-configured with a thin pool. The pool has 3 TB of free space....

How many backend Read & Write operations occur in a VMAX for a Random Host Write on a standard RAID-6 device?

How many RAID groups can be simultaneously attached to a volume's mirror positions under the RAID Virtual Architecture?

At the end of the VLUN migration to unconfigured space, what happens to the original RAID group of the Symmetrix device?

A customer is using VLUN Migration to move a 2TB thin device. It is 50% preallocated and has 400GB of user data written to it. How much data will be moved?

You are designing a FAST VP solution for a Symmetrix VMAX 40K array. What is a required step to enable FAST VP Compression?

A Symmetrix VMAX 40K customer is planning to use Virtual Provisioning and FAST VP. All the devices will be under FAST VP. They would like some of their critical devices to always s...

A Symmetrix VMAX 40K customer is planning to use Virtual Provisioning and FAST VP for their Microsoft SQL Server Database. --Thin Pool 1 is a EFD RAID-5 pool configured with 100 GB...

When binding a TDEV to a thin pool, what is the total size of extents allocated to a 4-way meta volume while using "preallocate=0"?

When performing a VLUN migration of a thin device to a different pool, which status must be reached and which command must be used to end the session?

Virtual LUN migration is used to change the local protection of an SRDF R1 volume from RAID 1 to RAID 5(7+1). How many mirror positions are occupied during the LUN migration proces...

Which technology enables storage virtualization?

A customer has deployed a Symmetrix VMAX that is shared among several departments. Each department is charged for its use of storage: -- They want to deploy FAST DP using three tie...

A Symmetrix VMAX has 3 storage tiers, A, B, and C with A being the fastest tier. FAST VP will be implemented. From a performance perspective, which tier allocation policy would you...

On a Symmetrix array without any DRVs configured, which process will FAST DP use to relocate a device to another tier?

A storage group is associated to a FAST VP policy and the customer would like to prevent a device within the storage group from being promoted to a higher tier. Which function of F...

Which performance metrics are taken into consideration by FAST to determine if a device or its data must be moved to a different tier?

What are dynamic reallocation volumes (DRV) used for within a Symmetrix VMAX array?

On a Symmetrix array, which process could FAST DP use to relocate a device to another tier?

Federated Tiered Storage has been implemented on a Symmetrix VMAX 40K array. Standard provisioning has been used to encapsulate a number of external LUNs. All the encapsulated devi...