E20-326 試験問題を無料オンラインアクセス

A customer is using SRDF/S with one Symmetrix VMAX in each data center. An application is doing 10,000 4 KB IOPS with 40% writes and is using multiple volumes. Assume an RA port can handle a maximum of 4,000 4 KB IOPS.
Based on best practices, how many RAs are needed for this application?

• A.1
• B.8
• C.2
• D.4

When working with Fibre Channel connectivity, which statement is correct about buffer credits?

• A.Insufficient BB_Credits will result in the degradation of throughput over long distance links.
• B.BB_Credits are not needed with long distance links.
• C.BB_Credits should be used with long distance links, but do not affect throughput.
• D.BB_Credits should be minimized so they do not affect throughput over long distance links.

Refer to the exhibit.

A customer has a legacy DMX-3 at Site 1, where a BCV-R1 copy is taken of the production volumes and then replicated to another DMX-3 at Site 2 via SRDF/A. The customer will replace the legacy DMX-3 arrays at both sites with new VMAX arrays.
The customer wants to enable concurrent SRDF on the Site 1 SRDF source volumes, to maintain disaster restart protection between the legacy DMX-3 arrays and migrate the legacy DMX-3 at Site 1 to the new VMAX array. What should you advise the customer?

• A.Enable concurrent SRDF using SRDF/A from the BCV-R1.
• B.Concurrent SRDF migration is not supported for this configuration.
• C.Host level migration is the only migration option for this configuration.
• D.Enable concurrent SRDF using SRDF/S from the BCV-R1.

A customer is planning a new Microsoft Exchange 2010 environment on their Symmetrix VMAX. The customer wants to know how they can backup volumes containing passive mailbox database copies.
What advice should be provided to the customer?

• A.VSS plug-in that ships with Exchange 2010 or Replication Manager can be used
• B.To use Replication Manager or a third-party Exchange-aware VSS-based application.
• C.To create Custom backup scripts.
• D.Only the VSS plug-in that ships with Exchange 2010 can be used.

You are assigned to design a storage solution for a customer's Oracle OLTP environment. The current configuration is having performance issues and users have complained about slow response times.
What knowledge about a typical Oracle OLTP workload will help in the redesign of the storage environment so that it runs more optimally?

• A.A typical read/write is 50% / 50%
• B.A typical read/write is 75% / 25%
• C.A typical read/write is 90% / 10%
• D.A typical read/write is 67% / 33%