When a client requests a file to read from an Isilon cluster, in which order does the read operation access the hardware in a node?

You have received a critical task that requires immediate analysis of system performance. Captured data will later be processed by MiTrend, but a current assessment is not available.
Which utility will quickly provide IOPS associated with reads and writes, CPU utilization, and I/O scheduler wait time?

A customer wants to add Unix users to their cluster, and requires that NFS access be fault-tolerant.
What would you recommend?

An Isilon storage administrator is concerned about capacity after ingesting 200 TB of file data. They recently added more nodes to the cluster and now want to auto-balance it as soon as possible.
The cluster utilization percentages for an average 24-hour period are:
-45% during 00:00 - 08:59 -60% during 09:00 - 17:00 -85% during 17:01 - 23:59
The administrator wants to keep cluster utilization at a minimum. Which Impact Policy settings should be used to quickly complete the job without impacting the production workload?

Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model.
You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations.
They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec, with a 30 days retention policy.
How many nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?