Performance & Accessibility Mount Options

Question 1

What do Linux mount options control?

Answer 1

Filesystem access and system performance

Question 2

Name common mount options.

Answer 2

ro, rw, remount, noatime, nodiratime

Question 3

What does ro do?

Answer 3

Sets filesystem as read-only to prevent modifications

Question 4

What does rw do?

Answer 4

Allows both read and write access

Question 5

Syntax for ro or rw?

Answer 5

mount -o ro|rw <source></source> <TARGET></TARGET>

Question 6

Example of ro?

Answer 6

mount -o ro /dev/sdb1 /mnt/mydrive

Question 7

What does remount do?

Answer 7

Changes mount options without unmounting the filesystem

Question 8

Why is remount useful?

Answer 8

Switch between read-write and read-only modes with minimal disruption

Question 9

Syntax for remount?

Answer 9

mount -o remount,<OPTIONS> <TARGET></TARGET></OPTIONS>

Question 10

Example of remount?

Answer 10

mount -o remount,ro /mnt/mydrive

Question 11

What does noatime do?

Answer 11

Disables updates to file access time on reads

Question 12

Why use noatime?

Answer 12

Improves performance by reducing disk writes during read-heavy operations

Question 13

Syntax for noatime?

Answer 13

mount -o noatime <source></source> <TARGET></TARGET>

Question 14

Example of noatime?

Answer 14

mount -o noatime /dev/sdb1 /mnt/mydrive

Question 15

What does nodiratime do?

Answer 15

Disables access time updates for directories only

Question 16

Why use nodiratime?

Answer 16

Reduces disk writes from frequent directory lookups

Question 17

Syntax for nodiratime?

Answer 17

mount -o nodiratime <source></source> <TARGET></TARGET>

Question 18

Example of nodiratime?

Answer 18

mount -o nodiratime /dev/sdb1 /mnt/mydrive