EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:

1. For a given job, what determines the number of workers assigned?
Response:

A) Job task
B) Job phase
C) Job priority
D) Job impact policy

2. A customer is evaluating PowerScale and NetApp FAS solutions. They are storing many unique files and want to understand how each solution deduplicates data. What is the difference between how PowerScale and NetApp FAS deduplicate data?
Response:

A) PowerScale uses separate deduplication at the volume level.NetApp FAS uses global deduplication across the cluster.
B) PowerScale does not have deduplication.NetApp FAS uses local deduplication.
C) PowerScale uses local deduplication.NetApp FAS does not have deduplication.
D) PowerScale uses global deduplication across the cluster.NetApp FAS separates deduplication at the volume level.

3. Refer to Exhibit below.

What is represented by the information shown in the exhibit?
Response:

A) Directory quota cannot exceed 2 TB for /ifs/data/media and no quota limit on /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.
B) Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 900 GB and each user can only store 75 GB for /ifs/data/media/temp.
C) Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 2 TB and each user can only store 75 GB for /ifs/data/media/temp.
D) Directory quota cannot exceed 2 TB for both /ifs/data/media and /ifs/data/media/photo.Directory quota cannot exceed 900 GB for /ifs/data/media/video.Directory quota can be any size up to 2 TB for /ifs/data/media/temp.

4. A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?
Response:

A) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID rebuilds.Data recovery is consistent, taking the same amount of time regardless of cluster size.Isilon ,short strokes, 4TB drives to reduce rebuild time.
B) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID rebuilds.N+3 and N+4 Protection Levels exceed traditional RAID6 availability.Data redistribution runs faster with more nodes in the cluster.
C) N+3 and N+4 Protection Levels exceed traditional RAID6 availability.Proactive hot sparing eliminates most drive rebuilds.Endurant Cache reduces the overhead for write operations.
D) Isilon nodes have more drives per rack unit so fewer shelves are required.Proactive hot sparing eliminates most drive rebuilds.N+3 and N+4 Protection Levels exceed traditional RAID6 availability.

5. A customer is looking for a new storage solution to handle their growing storage requirements. The system should be able to cover storage needs for the next three years. The environment consists of 100 TBs of file system data spread across five file systems. On average, the file systems grow 1 TB a month.
In addition, they have a large VMware cluster supporting 200 VMs and a highly transactional database. The customer is looking for a solution that would provide good performance, scalability, manageability, and be cost-effective. The sales team is looking to you to recommend a solution.
Which recommendation will meet the customer's requirements?
Response:

A) Isilon for file system data, and a VNX for DB and VMware workloads
B) VMAX with FAST VP and a NAS Gateway
C) Isilon cluster and scale-out as required
D) VNX Unified platform with FAST Cache

Solutions: