A system administrator wants to ensure that RAID monitoring continues to run even after a reboot. The administrator has configured mdadm.conf and wants to start the monitor automatically. Which approach is the most reliable?

Run mdadm --monitor --scan --mail=admin@example.com in a screen session.

Add mdadm --monitor --scan --mail=admin@example.com to /etc/crontab with @reboot.

Create a systemd service unit that runs mdadm --monitor --scan --mail=admin@example.com.

Add mdadm --monitor --scan --mail=admin@example.com to /etc/rc.local.

A storage administrator has a RAID 5 array with four 1 TB disks that is nearly full. The administrator wants to increase capacity and improve fault tolerance. The server has two additional 1 TB disks available. What is the most efficient way to achieve both goals without losing data?

Add one disk and grow to RAID 6 with five devices.

Add both disks and grow to RAID 5 with six devices.

Create a new RAID 6 array with the two new disks and migrate data manually.

Add both disks to the array and grow it to RAID 6 with six devices.

A RAID 6 array with four disks and one hot spare has experienced a single disk failure. The hot spare has been automatically activated and the rebuild is in progress. What is the current state of the array?

The array is healthy and fully operational with no risk of data loss.

The array is in a critical state and data loss is imminent.

The array is read-only until the rebuild completes.

The array is degraded and can tolerate one more disk failure during the rebuild.

What is the purpose of the --scan option when used with mdadm --monitor?

To monitor all arrays listed in the mdadm configuration file

To scan the disks for bad blocks

To scan the network for other monitoring hosts

To scan for new arrays created since the last check

LPI LPIC-3 High Availability and Storage Clusters

Domain 4Objective 2

364.2 Advanced RAID (weight: 2) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 4)

Part of the Topic 364: Single Node High Availability domain, which makes up ~27% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 2–4 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

10concepts

Questions 16–20

16foundation · easy
Which RAID level provides block-level striping with no parity or mirroring, offering the highest write performance but no fault tolerance?
Select an answer first
17expert · hard
A system administrator wants to ensure that RAID monitoring continues to run even after a reboot. The administrator has configured mdadm.conf and wants to start the monitor automatically. Which approach is the most reliable?
Select an answer first
18expert · hard
A storage administrator has a RAID 5 array with four 1 TB disks that is nearly full. The administrator wants to increase capacity and improve fault tolerance. The server has two additional 1 TB disks available. What is the most efficient way to achieve both goals without losing data?
Select an answer first
19application · medium
A RAID 6 array with four disks and one hot spare has experienced a single disk failure. The hot spare has been automatically activated and the rebuild is in progress. What is the current state of the array?
Select an answer first
20foundation · easy
What is the purpose of the --scan option when used with mdadm --monitor?
Select an answer first

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