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Category: E20-324 (v.2)

Exam E20-324: VNX Solutions Design Exam for Technology Architects (update Octobe 24th, 2014)

How is that data distributed (numbers are approximate)?

Click on the calculator icon in the upper left-hand corner. A customer has a heterogeneous pool
with the following configuration:
800 GiB of Flash, with 300 GiB free
12,000 GiB of SAS, with 2,000 GiB free
50,000 GiB of NL-SAS, with 25,000 GiB free

The customer creates a new LUN with data placement policy set to “highest available tier”. The
LUN is then populated with 600 GiB of data. How is that data distributed (numbers are
approximate)?

Which protocol should be used to connect the servers to the storage array?

Your customer has two clustered SQL servers that require direct access to LUNs located on their
VNX storage array.
Both servers are located in the customer’s main office. The VNX storage array is located in the
customer’s data center, which is approximately 1.5 km from their office. Both facilities are
interconnected using their existing IP network.
Which protocol should be used to connect the servers to the storage array?

Which configuration best supports their availability requirements?

Your customer has just purchased a new VNX, which will be dedicated to their large SQL 2008
cluster. High-performance and high-availability are critical.
To meet their availability requirements, the customer has requested the configuration be optimized
to allow both storage processors to process I/O for any given LUN without trespassing the LUN.
Which configuration best supports their availability requirements?

which hot spare drive would the array first select to replace the failed drive?

After reviewing the design for their new VNX, your customer has requested further explanation of
the hot spare algorithm used by the array. You propose the following scenario:
RAID group 200 consists of five 600 GB 10K SAS drives in a RAID 5 configuration. Within this
RAID group there are three 25 GiB LUNs. One of the five drives has just failed.
In your scenario, which hot spare drive would the array first select to replace the failed drive?


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