IBM C4090-461 Actual Free Exam Questions & Community Discussion

From a performance perspective, which metric is the most important aspect of the storage system for streaming video?

A customer provides the information shown in the exhibit for the company's primary database environment. The customer believes that using Tier 0 (i.e. Flash or SSD) storage for database log volumes ("_log" volumes) will improve performance.

What is the minimum amount of Tier 0 storage needed to meet the customer requirement?

A customer provides the information shown in the exhibit for the company's primary database environment. Solution requirements include meeting of exceeding the current I/O rate of the existing environment.
System name Name Max IOPS Avg IOPS Min IOPS Max BW (MBps) Avg BW (MBps) Min BW (MBps) Max Latency (ms) Avg Latency (ms) pldenxivg3 denoubivs_arch1 1101 20 0 274 5 0 3 2 pldenxivg3 denoubivs_arch2 3 0 0 0 0 0 0 0 pldenxivg3 denoubivs_bin1 322 1 0 1 0 0 32 0 pldenxivg3 denoubivs_bin2 184 0 0 1 0 0 21 0 pldenxivg3 denoubivs_bkup1 2 0 0 0 0 0 0 0 pldenxivg3 denoubivs_bkup2 25 0 0 2 0 0 0 0 pldenxivg3 denoubivs_bkup3 1 0 0 0 0 0 0 0 pldenxivg3 denoubivs_data1 997 39 0 128 3 0 28 2 pldenxivg3 denoubivs_data2 997 38 0 133 3 0 31 2 pldenxivg3 denoubivs_data3 1005 43 0 127 3 0 23 1 pldenxivg3 denoubivs_data4 2217 38 0 175 3 0 19 2 pldenxivg3 denoubivs_data5 1194 37 0 109 2 0 32 1 pldenxivg3 denoubivs_data6 1118 30 0 70 2 0 23 1 pldenxivg3 denoubivs_data7 1111 29 0 70 2 0 21 1 pldenxivg3 denoubivs_data8 2443 24 0 156 1 0 10 0 pldenxivg3 denoubivs_data9 1710 8 0 108 0 0 12 1 pldenxivg3 denoubivs_log1 2107 49 0 46 1 0 2 0 pldenxivg3 denoubivs_log2 2174 44 0 43 1 0 2 0 pldenxivg3 denoubivs_NJP_bin 8 0 0 0 0 0 0 0 pldenxivg3 denoubivs_NJP_data 1452 9 0 93 0 0 0 0 pldenxivg3 denoubivs_NJP_log 65 14 0 3 0 0 0 0 pldenxivg3 denoubivs_os1 16 0 0 0 0 0 0 0 pldenxivg3 denoubivs_os2 0 0 0 0 0 0 0 0 pldenxivg3 denoubivs_pg1 12 0 0 1 0 0 0 0 pldenxivg3 denoubivs_pg2 0 0 0 0 0 0 0 0 pldenxivg3 denoubivs_arch1 501 5 0 122 1 0 3 1 pldenxivg3 denoubivs_arch2 0 0 0 0 0 0 0 0 pldenxivg3 denoubivs_back1 1 0 0 0 0 0 0 0 pldenxivg3 denoubivs_back2 0 0 0 0 0 0 0 0 pldenxivg3 denoubivs_back3 2 0 0 0 0 0 0 0 pldenxivg3 denoubivs_bin1 209 2 0 6 0 0 16 0 pldenxivg3 denoubivs_bin2 283 0 0 17 0 0 18 1 pldenxivg3 denoubivs_bin3 176 1 0 8 0 0 18 1 pldenxivg3 denoubivs_data1 3128 116 0 201 5 0 17 0 pldenxivg3 denoubivs_data2 1117 65 0 71 2 0 16 0 pldenxivg3 denoubivs_data3 1129 69 0 71 2 0 16 0 pldenxivg3 denoubivs_data4 1136 63 0 72 2 0 16 0 pldenxivg3 denoubivs_data5 1147 65 0 72 2 0 16 0 pldenxivg3 denoubivs_data6 3470 60 0 223 2 0 36 0 pldenxivg3 denoubivs_data7 2389 51 0 152 2 0 20 0 pldenxivg3 denoubivs_log1 204 12 0 13 0 0 2 0 pldenxivg3 denoubivs_log2 279 11 0 12 0 0 3 0 pldenxivg3 denoubivs_os1 21 0 0 0 0 0 0 0 pldenxivg3 denoubivs_os2 0 0 0 0 0 0 0 0 pldenxivg3 denoubivs_pg1 2 0 0 0 0 0 0 0
Total= 35458 943 0 2580 44
Average= 788 21 0 57 1 0 10
0
What should the minimum I/O rate be for the new solution?

A customer has conducted an analysis of its Vmware environment to determine the capacity savings available by converting from thick to thin provisioning. The results of the analysis are in the exhibit provided.

What is the minimum capacity needed for the solution assuming compression is NOT part of the proposed solution?

To meet a customer's capacity requirements you propose the IBM DCS3860storage system.
Which host interface adapter cards come as a standard feature?

A customer has a DS5100 at one site and an EMC VNX5100 at a second site. The customer requires a storage solution to manage pools of block storage across the different storage systems. It is critical that storage can be deployed from either storage pool without any outage of the attached host system. The customer also requires the ability to maintain a fully synchronized copy of data at a secondsite with very low latency between them.
Which solution should you recommend for this customer?

A storage administrator has added some 4 TB Nearline SAS to its IBM Storwize V7000 and wants to follow IBM's best practice.
What is the preferred RAID type to use?