C4090-456試験無料問題集（70題）「IBM XIV Storage System Technical Solutions V4 認定」

出題：1

A customer complains that their SAP database now performs worse than it did before being migrated from traditional RAID storage to XIV. The database was configured using 20 x 200GB XIV LUNs presented to an AIX 6 host OS where they are concatenated and striped into six volumes for the databases and logs. No changes have been made in the transition to XIV.
What if anything can be done to improve performance?

A. implement static load balancing and increase the queue depth of the host adapters

B. the SAP volumes should be put into a QoS Performance Class

C. add Fibre Channel adapters to the host and balance volumes across the adapters

D. the databases should be reorganized into larger volumes on the XIV and not striped within the OS

正解：D 解答を投票する

出題：2

XIV Quality of Service limits I/O to which of the following?

A. mirrored pairs

B. storage pools

C. consistency groups

D. hosts

正解：D 解答を投票する

出題：3

What minimum information is required when creating a volume on an XIV system?

A. capacity, storage pool, volume name

B. capacity, RAID level, disk group

C. Quality of Service, consistency group, volume name

D. drive type, disktier, capacity

正解：A 解答を投票する

出題：4

How much space will an XIV snapshot allocate from the pool's snapshot reserve when its created?

A. 17GBpersnapshot

B. 17GB pervolume

C. 0 GB per snapshot

D. 17GBperpool

正解：C 解答を投票する

出題：5

On an XIV system, what factor must be considered when using snapshots?

A. 17 GB of hard capacity is immediately consumed at creation per snapshot

B. snapshots must be unlocked before restore

C. restoring a snapshot invalidates all earlier snapshots

D. snapshots cannot be moved independently to another storage pool

正解：D 解答を投票する

出題：6

Compared to other IBM storage offerings, which of the following is unique functionality on an XIV system?

A. ability to take snapshots

B. prevents hotspots

C. reduced single points of failure

D. IP based replication

正解：B 解答を投票する

出題：7

When does XIV Gen3 SSD caching significantly improve performance?

A. for large block, sequential read I/O workloads

B. for small block, random read I/O workloads

C. for small block, sequential write I/O workloads

D. for GPES random workloads

正解：B 解答を投票する

C4090-456試験無料問題集「IBM XIV Storage System Technical Solutions V4 認定」