You work as an administrator at ABC.com. You study the exhibit carefully.
Exhibit:

ABC.com has collected response time performance data from their CLARiiON array. They are
experiencing periodic increases in overall array response times. They have created a graph of the
data that is displayed in the exhibit.
The customer has a CX3-40 with 22 Windows hosts and replicates data with MirrorView/A
periodically throughout the day. How would you explain the peak in response times given the
overall performance profile shown?

A software engineering company has decided to implement shared networked storage to facilitate
project development. There are approximately 40 servers in the company; 25% are Solaris and
75% are Windows. The company currently limits growth for storage and does not want to add
additional servers for that purpose. They anticipate no more than 30% growth over the next three
years.
The storage utilized for the network file systems must be maintained on the most cost-effective
solution that is the easiest to manage. However, storage must also be tracked so that the required
storage for projects can be charged back to the development teams. Additionally, the network file
system will be used for non-project-related storage from other departments such as Human
Resources and Accounting. Space allocation for non-project files must be monitored and reports
generated for management.
In order to select the most appropriate management application for this environment, you need to
analyze specific qualification information. What is the best methodology to collect this information?

ABC.com is consolidating several arrays of various tiers into a single DMX-4. Their applications
have varying workloads and will be placed on the appropriate tier of storage. Mission-critical
application service levels must be met.
Which feature can be implemented on the new DMX such that applications are serviced by shared
disk resources that are based on customer-assigned criteria?

ABC.com data center has several large FibreChannel SANs supporting AIX, HP-UX, Solaris,
Windows, NetWare, and Linux platforms. They have dedicated a portion of their gigabit network
for iSCSI traffic. The customer is considering a strategy of using iSCSI for every new host that will
not run mission-critical applications.
When evaluating this environment, what should be a primary consideration?

You are working with ABC.com for whom high availability has become a priority because of recent
outages due to single points of failure in their storage infrastructure.
Which components are the most appropriate for the design of the SAN?

ABC.com has a DR site 20 miles (30 km) from their production site. Each site has a CX3-40. As
part of the information gathering process, you determine that their RPO is 15 minutes or less.
They have a total of 30 LUNs that will need to be replicated to the remote site. Their application is
sensitive to response times.
You have gathered Analyzer data for a normal working day. You note the following Analyzer
values:
Write response time: 5 ms
Read response time: 14 ms
Write/s: 400
Read/s: 700
Average seek distance: 23 GB
Which solution should you recommend?

A prospective customer has four applications (A, B, C, and D) with various LUNs they wish to
snapshot. The LUN sizes are as follows:
Application A:
10 GB
20 GB
10 GB
Application B:

25 GB
50 GB
Application C:
150 GB
5 GB
5 GB
Application D:
100 GB
25 GB
According to SnapView best practices, how large should each reserved LUN be in the Reserved
LUN Pool?

ABC.com has a SAN fabric consisting of several MDS-9509s for host to disk array connectivity.
They have purchased a Fibre Channel tape library and want to implement LAN-free backups. You
have proposed making a tape VSAN on the existing MDS infrastructure. The customer is
concerned that the additional traffic on the shared ISLs will consume bandwidth needed by the
disk VSAN. Which feature should you propose to address the customer’s concern?

In an interview with your customer’s backup administrator, you learn that the Exchange backups
are failing frequently. You believe physical database corruption (-1018 errors) is the root cause.
Where should you look for an indication of the source of the problem?

You must design a backup solution for an existing Celerra NS80 customer. The customer has
decided that the expense of expanding their tape hardware infrastructure to support the additional
load is not justified because the technology is not reliable and is outdated.
The customer’s decision criteria are.
1. Performance
2. Least disruption to the production environment
3. Ease of maintenance
Which alternate solution should you use to back up the Celerra?