In Isilon OneFS, what is a characteristic of CoW with snapshots?

1. A. Used for small changes, inodes, and directories.
2. B. Avoids the double write penalty.
3. C. Increases file fragmentation.
4. D. Used for more substantial changes such as deletes.

Correct Answer: A
With copy on write, as the name suggests, a new write to HEAD results in the old blocks being copied out to the snapshot version first.
Although this incurs a double write penalty, it results in less fragmentation of the HEAD file, which is better for cache prefetch, etc.
Typically, CoW is most prevalent in OneFS and is primarily used for small changes, inodes and directories.

On an Isilon cluster, what is a benefit of using SMB Server-Side Copy?

1. A. A secondary copy of a file is written to a backup location to assist SyncIQ operations.
2. B. A secondary copy of the user’s file is created to allow multiple users to edit the file simultaneously.
3. C. Allows the file to be copied from one location to another without having to go through the client.
4. D. Allows members of the Administrator’s group to manage snapshot copies of files.

Correct Answer: C

What are the methods to join a node to an Isilon cluster?

1. A. Configuration wizard, SSH connection, or CLI only
2. B. Serial connection, Configuration wizard, or CLI only
3. C. Front panel display, serial cable, or Configuration wizard only
4. D. Front panel display, Configuration wizard, WebUI, or CLI only

Correct Answer: D

An Isilon cluster has ten A200 nodes and the node pool data protection level is set to N+2. The data access pattern is currently set to streaming. If the data access pattern is changed to concurrency, how many stripes for a 1 MB file are moved to the other drive(s)?

1. A. 2
2. B. 4
3. C. 6

Correct Answer: B

What are the two ways a FlexProtect job can start?

1. A. An at or batch command and Non-event driven
2. B. Administrative and Even-driven
3. C. An at or batch command and Alert-driven
4. D. Administrative and Alert-driven

Correct Answer: D