Some business critical database applications have been suffering from slowly increasing
performance issues with one enterprise SAN-attached storage system. In particular, the
applications are showing higher than normal read response times.
What should the storage administrator monitor to determine the root cause?

Your company uses a cryptographic key system to encrypt tapes. After several years of use and
thousands of tapes shipped to off-site locations, an IT audit reveals that encryption keys have
been inadvertently stored as ciphertext on file shares to which everyone in the company has read
permissions.

Which response reflects industry best practice?

Click the Exhibit button.

Which RAID level is shown in the exhibit?

Click the Exhibit button.

The customer configuration shown in the exhibit is not meeting the throughput needs of a newly
installed application. The application’s I/O profile consists of 100% 4 kilobyte reads and all servers
require a sustained bandwidth of 150 MBps.
Which location within the configuration presents a performance bottleneck?

You receive a ticket from a database group which is complaining about slow access to storage on
only one particular server, as compared to other servers in an active-active cluster. You verify
zoning and LUN masking which are fine. On the FC switch, you verify link speed, errors, and
throughput for the FC switch ports used by this server. There are no errors on the ports and the
link speed is the same as on the switch ports used by other servers in the cluster. You notice that
on one port on the FC switch used by this server, that there is no throughput at all.
What is causing the problem?

You have been asked to create a LUN on a storage array that is comprised of 7,200 rpm SATA
drives. Each drive is rated at 100 IOPS. The LUN should provide a minimum of 1100 IOPS and
withstand multiple drive failures using the least number of drives.
How many drives and which RAID level should you use to create this LUN?

Click the Exhibit button.

The customer application requires a 50/50 R/W ratio with 100 MBps throughput requirements for
each direction of the link. The application servers will simultaneously sustain these data rates
across all LUNs in parallel.
Referring to the exhibit, where will the oversubscribed link(s) occur?

Which protocol commonly uses CNA devices?

A security audit reveals deficiencies in your company’s FC zoning practices. Your manager asks
you to make a recommendation to implement the most secure FC zoning possible. Your company
is using switches from a single vendor.
What do you recommend?

A server with a dual-ported HBA loses access to storage during switch SFP replacement. You
want to prevent this from happening in the future.
Which action should you perform?