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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) 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.
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) 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.
D) 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.
2. A customer requires an infrastructure to support disaster recovery of critical applications between two remote data centers. One data center is in Tokyo and one is in Beijing. The customer's Recovery Point Objective (RPO) requires a six-hour window for a bandwidth of 100 MB/s and a new storage system for a total of 4 TB of data. They estimate 100 MB of new data produced hourly.
What data synchronization method would be recommended to meet the requirements?
A) FlashCopy
B) Metro Mirror
C) Snapshot
D) Global Mirror
3. What statement is correct regarding DS8870 Remote Pair FlashCopy?
A) With DS8870 Remote Pair FlashCopy, the local FlashCopy target is a Metro Mirror source.
B) D38700 Remote PairFlashCopyis initiated using IP network links between the data centers.
C) Using DS8870 Remote PairFlashCopydoes not require any existing Metro Mirror license.
D) DS8870 Remote Pair FlashCopy is a separate feature code, which must be included on the system order.
4. What is the purpose of the Power Line Disturbance feature in a D38000?
A) It increases the time before the DS8000 automatically shuts down in the event of a power failure
B) It is required to retain data on SSDs in the event of a power failure
C) It removes the need for an external generator in case of power failure
D) It keeps the disks spinning for up to one hour when there is a power failure
5. Which of the following statements about remote replication on the D38000 is true?
A) Global Mirror has a maximum of 256 volumes
B) Global Copy does not provide consistency
C) Metro/Global Mirror can only be used for z/OS data
D) Metro Mirror's longest supported distance is 100 kilometers
Solutions:
Question # 1 Answer: B | Question # 2 Answer: D | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: B |