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EMC Dell PowerScale Design v2 Sample Questions:

1. Your customer's initial use case was Home Directories. They implemented the cluster with four 1Gbps ports and LACP. They are planning to expand their cluster to support their core file services. They plan to upgrade their network infrastructure to 10 GbE to facilitate this.
What are two design impacts this change will have?

A) Maximum performance is obtained by only using a single 10GbE interface per node. Isilon can support up to 400MB/s per node
B) Dual 10GbE ports on each node will enable throughput of 20Gbps. Only connect half of the nodes to the network.
C) LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system. FCoE should be considered for the External Network Ports on the nodes.
D) Maximum performance is obtained by only using a single 10GbE interface per node. LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system.

2. Your customer is looking for a storage solution that will be able to store seven million 3 MB files which are written and seldom accessed.
Read and write operations are both completed by a webbased application, which requires 1.3 Gbps throughput. The customer's network has not been upgraded in many years, so the network interfaces are 1 Gbps.
What would be the best solution for this network configuration?

A) Bond EXT-0 across all nodes.
B) Use jumbo frames to compensate for the 1GB Core network.
C) Aggregate Infiniband (IB) ports across all nodes.
D) Use LACP to aggregate the network ports on each node.

3. If snapshots are configured for the InsightIQ datastore on Isilon and the datastore is reverted to a previous snapshot, what might be the result?

A) InsightIQ database will have to be manually copied from the snapshot
B) InsightIQ datastore could be corrupted
C) InsightIQ will not recognize the older copy of the database
D) InsightIQ datastore cannot be reverted

4. A customer has a requirement for a new solution to handle their growing storage needs for the next three years.
The environment includes:
- 100 TB of file system data spread across five file systems (growing at ~1 TB/month)
- A large VMware cluster supporting 200 VMs
- A highly transactional database
They want a solution that offers good performance, scalability, manageability, and cost-effectiveness.
Which solution meets these requirements?

A) Deploy PowerScale for all workloads (DB, VMware, and file systems)
B) Deploy VMAX with FAST VP and a NAS Gateway for all workloads
C) Deploy VNX Unified platform with FAST Cache for all workloads
D) Deploy PowerStore for DB and VMware workloads, and PowerScale for file system data

5. Which factor most influences protection overhead when designing a PowerScale solution for small-file workloads?

A) The number of access zones configured
B) The SmartConnect advanced license mode
C) File size distribution and metadata overhead
D) The type of access protocol used (NFS vs SMB)

Solutions: