Ch 2- 2 Minute Drill

Question 1

Disk Types and Configurations (1)

Answer 1

A solid state drive (SSD) is a high-performance drive that contains no moving parts, uses less power than a traditional hard disk drive (HDD), and provides a faster startup time than an HDD.

Question 2

Disk Types and Configurations (2)

Answer 2

A USB drive is an external plug-and-play storage device that provides a quick and easy way to move files between computer systems.

Question 3

Disk Types and Configurations (3)

Answer 3

A tape drive reads and writes data to a magnetic tape and differs from an HDD because it provides sequential access rather than random access to data.

Question 4

Disk Types and Configurations (4)

Answer 4

HDDs connect to a computer system in a variety of ways, including ATA, SATA, FC, SCSI, SAS, and IDE.

Question 5

Disk Types and Configurations (5)

Answer 5

The speed at which an HDD can access data stored on it is critical to the performance of the server and the application it is hosting.

Question 6

Tiering (1)

Answer 6

Tiered storage allows data to be migrated between storage devices based on performance, availability, cost, and recovery requirements.

Question 7

Tiering (2)

Answer 7

There are 4 levels of tiered storage. The tiers range from tier 1, which is mission-critical data stored on expensive disks, to tier 4, which stores data for compliance requirements on less expensive disks.

Question 8

Redundant Array of Independent Disks (RAID) (1)

Answer 8

RAID is a storage technology that combines multiple hard disk drives into a single logical unit to provide increased performance, security, and redundancy.

Question 9

Redundant Array of Independent Disks (RAID) (2)

Answer 9

RAID is implemented using either software RAID or hardware RAID via a RAID controller.

Question 10

Redundant Array of Independent Disks (RAID) (3)

Answer 10

RAID 1, or mirroring, uses 2 disks and provides data protection without parity or stripping.

Question 11

Redundant Array of Independent Disks (RAID) (4)

Answer 11

RAID 0 requires 2 disks and provides increased performance without redundancy.

Question 12

Redundant Array of Independent Disks (RAID) (5)

Answer 12

RAID 1+0 requires 4 disks and incorporates the speed advantage of RAID 0 and the redundancy advantage of RAID 1.

Question 13

Redundant Array of Independent Disks (RAID) (6)

Answer 13

RAID 5 is 1 of the most common RAID implementations and uses 3 disks to provide block-level striping for performance and distributed parity for data protection.

Question 14

Redundant Array of Independent Disks (RAID) (7)

Answer 14

RAID 6 is an extension of RAID 5 that requires 4 disks because it uses 2 parity blocks distributed across all the disks.

Question 15

File System Types (1)

Answer 15

The file system is responsible for storing, retrieving, and updating files on a disk.

Question 16

File System Types (2)

Answer 16

UFS is the file system that is predominantly used in Unix-based computers.

Question 17

File System Types (3)

Answer 17

The EXT file system is the first file system created specifically for Linux.

Question 18

File System Types (4)

Answer 18

FAT is a legacy file system that provides good performance but without the scalibility and reliability of newer file systems.

Question 19

File System Types (5)

Answer 19

NTFS was developed by Microsoft to replace FAT and provides improved performance and reliability, larger partition sizes, and enhanced security.

Question 20

File System Types (6)

Answer 20

VMFS is VMware’s cluster file system and is used with ESX server and vSphere.

Question 21

File System Types (7)

Answer 21

ZFS was developed by Sun Microsystems and provides protection against data corruption with larger storage capacities.