Home » Oracle » 1z0-499 » Which option represents the steps to add L2ARC cache SSDs (Readzillas) to a storage pool by using the command-line interface (CLI)?
Which option represents the steps to add L2ARC cache SSDs (Readzillas) to a storage pool by using the command-line interface (CLI)?
A. enter configuration storage, import cache to the pool, verify and done
B. enter configuration storage, add cache to the pool, verify and done
C. enter configuration storage, configure cache to the pool, verify and done
D. enter configuration storage, get cache to the pool, verify and done
Correct Answer: B
Explanation/Reference:
Configuring Storage Using the CLI, Adding Cache Devices to an Existing Pool 1. Install the new Readzilla or Logzilla device into the first available slot.
2. At the command line, enter: poc:> configuration storage
3. Specify the pool you want to add the device to:
poc:configuration storage (pool_2)> set pool=pool_2 pool = pool_2
poc:configuration storage (pool_2)> add
A message reminds you to verify that the device is correctly installed. Note that mixing device types and speeds is strongly discouraged.
4. Show the device information for the pool:
poc:configuration storage (pool_2) verify> show
ID STATUS ALLOCATION DATA LOG CACHE RPM
0 ok custom 0 0 0/4 1.86T
1 ok custom 0 0/2 34G 0 15000
2 ok custom 0 0/2 34G 0 15000
5. Specify which disk shelf and the number of Logzillas or Readzillas to use. In the following example, 1-log=1 allocates one Logzilla from the first disk shelf.poc:configuration storage (pool_2) verify> set 1-log=1
1-log = 1
Note: A value of "1-log=2" would allocate two Logzillas from the first disk shelf.
This example allocates one Readzilla from the first disk shelf. poc:configuration storage (pool_2) verify> set 1-cache=1 1-cache = 1
6. Enter done.poc:configuration storage (pool_2) verify> done
References: Oracle ZFS Storage Appliance Administration Guide (June 2014), page 103
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