A customer has recently implemented Microsoft Exchange 2010 on a VNX storage system that hosts a variety of application servers. The Exchange implementation is currently using RAID 5 (4+1) and uses FAST Cache for the database volumes, but is not using FAST VP. Performance has been significantly diminished.

What would you recommend to the customer?

A. Isolate server workload to dedicated set of spindles.

B. Implement FAST VP.

C. Combine log and database volumes in a storage pool.

D. Implement a RAID 6 configuration.

A customer has a mix of Windows 2003 and Windows 2008 virtualized guests deployed in their vSphere v4 environment. They have purchased a new VNX array and are also upgrading their ESX servers from V4.0 to V5.0.

Their VMware administrators are creating the new target LUNs and VMFS file systems for their datastores. They have noticed that the alignment offset on the new array is not the same as their old array, so they are concerned about disk

crossing on the new array.

How would you respond to the customer?

A. The offset for VMFS-5 is now 1 MiB and will not affect performance of any of the VMs.

B. The offset for VMFS-3 is now 1 MiB and will not affect performance of any of the VMs.

C. The alignment of all VMs will need to be manually adjusted.

D. Windows 2003 VMs will need to be manually adjusted, but Windows 2008 VMs will not be affected.

Your customer wants to expand each back-end bus to the maximum of 10 enclosures attached via an LCC with an edge expander. They are concerned that it will add extra latency.

What should be your response?

A. Max latency will be 5 microseconds

B. Max latency will be 10 microseconds

C. Max latency will be 1 microsecond

D. There will be no additional latency

What can be concluded from the exhibit about the I/O profile of LUN 600?

A. Read access is random.

B. I/Os are too big for prefetch.

C. Read access is sequential.

D. Reads are being prefetched.

Refer to the exhibit.

A customer has three SAS DAEs configured with eight 4+1 RAID 5 Groups (RG) and six Hot Spares. All RGs are unused except for RG 0, which contains the Control LUNs. All LUNs except for those in RG 0 are the same size. Which dvols will be selected for the second file system creation using Automatic Volume Management System-defined pools?

A. dvols d9, d14, d16, and d18

B. dvols d11, d13, d20, and d22

C. dvols d12, d14, d17, and d21

D. dvols d9, d10, d16, and d18

How many threads should be used to provide the best performance to a sequential file system spanning a single 4+1 RAID 5 LUN?

A. One thread for the LUN

B. One thread per physical disk

C. Four threads per dVol

D. Four threads per LUN

Your customer is requesting a way to analyze .nar data without incurring any additional load on the SP during the analysis. What do you recommend?

A. Unisphere VNX Client

B. Mitrend Client

C. CAP2 Tool

D. Unisphere Service Manager (USM)

A customer implemented your VNX for File design for a high-performance CAD/CAM application. The design specified several NFS clients, each accessing a single file system in a single-threaded manner. You need to guarantee that each file system resides on an exclusive LUN set.

Which value would you change?

A. default_slice_flag

B. is_greedy

C. is_dynamic

D. stripesize

Where does SnapSure place the SavVOL, by default?

A. on a disk pool where FAST Cache is not enabled

B. on a thin LUN

C. on the same drive pool as the PFS

D. on a disk pool where FAST Cache is enabled

A VNX Administrator is analyzing storage workload distribution. The administrator is trying to determine if the array has an acceptable skew. Based on the workload in the illustration, what could be concluded?

A. 95% of the workload is distributed over 5% of the capacity, for a skew of 95%.

B. 10% of the workload is distributed over 90% of the capacity, for a skew of 80%.

C. 80% of the workload is distributed over 20% of the capacity, for a skew of 20%.

D. 90% of the workload is distributed over 50% of the capacity, for a skew of 10%.