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IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. A customer wants to place some HDDs in a DS8870. The customer also wants to enable Easy Tier with SSD for all HDDs, but wants to minimize the amount of SSDs purchased.
Which option would be valid?

A) IBM recommends a 2:1 ratio of HDDs to SSDs, so the customer should purchase half the number of SSDs compared to the number of HDDs purchased.
B) SDDs come in full drive sets (16 drives). Purchasing a single full drive set, if configured properly, would enable all the HDDs to be in an Easy Tier pool at the lowest cost.
C) SSDs come in half drive sets (8 drives). Purchasing a single half drive set, if configured properly, would enable all the HDDs to be in an Easy Tier pool at the lowest cost.
D) IBM never recommends less than 50% of the configured drives be SSD, so the customer should match the number of HDDs with the same number of SSDs.

2. The customer's data center has an elevator with a maximum load capacity' of 2200 lb (1000 kg). A Disk Magic study has proved that the performance requirements of the workload are at Enterprise class levels.
What should be recommended?

A) Order a DS8800 with minimal disks and then MES upgrade with additional capacity' to the customer's requirements.
B) Redesign the solution to use modular systems, like IBM Storwize V7000, which could be delivered in lighter shipments.
C) Configure the feature code on DS8800 which allows a shipping weight reduction.
D) A standard D68800. The Customer Engineer can then remove parts until the elevator load capacity' is not exceeded.

3. When configuring LUNs for IBM i which is not using VIOS, which of the following is true?

A) LUNs have 512 byte sectors and are limited to 2 TB.
B) LUNs have 520 byte sectors and must match the size of internal drives.
C) LUNs have 512 byte sectors and must match the size of internal drives.
D) LUNs have 520 byte sectors and are limited to 2 TB.

4. A mainframe customer would like to receive a proposal for a mainframe storage system with 120 TB raw capacity. The mainframe server load is not too high, and they need drives with the lowest possible power consumption to keep operating costs low. The customer will not increase the capacity of their mainframe applications in the future but rather invest later into their Power servers.
Which of the following solutions best meets these requirements at the lowest cost?

A) Offer a DS8870 with business class cabling and the largest available capacity SAS drives
B) Offer a DS8870 with the largest available capacity EC drives
C) Offer a DS8870 with the largest available capacity SATA drives
D) Offer a DS8870 with standard cabling and the largest available capacity SAS drives

5. As the result of a performance sizing a D38870 system configuration must include 96 x 600 GB 10000 rpm SAS drives, and only 32 GB cache.
Which DS8870 system version should to be offered?

A) DS8870 business class configuration including 4 core processors
B) DS8870 business class configuration including 2 core processors
C) DS8870 enterprise class configuration including 4 core processors
D) DS8870 enterprise class configuration including 2 core processors

Solutions: