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Linux Foundation Certified SysAdmin > File systems > Flashcards

Flashcards in File systems Deck (12)
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1

What is journaling?

Designed to prevent data corruption/loss from power loss

2

How does journaling work?

Notes files written to disk in journal, removes job when completed. At boot partially completed jobs are resumed

3

What is the ext file system?

Extended file system

4

What features did Ext2 bring?

Supported extended attributes (x-attrs), 2TB+ drives

5

What features did Ext3 bring?

Journaling

6

What features did Ext4 bring?

Reduced file fragmentation, Larger volumes and files, Delayed allocation to improve flash memory life

7

What is BtrFS?

B-Tree File System
Drive pooling, snapshots, compression, online defragmentation

8

What is ZFS?

Zeta File Syste,
Designed by Sun Microsystems aquired by oracle
Open sourced under CDDL license

9

What is XFS?

Can be enlarged but not shrunk on the fly
Good with large not small files

10

What is JFS?

Journaled File System developed by IBM for AIX
Partitions can be enlarged not shrunk

11

What is Swap?

Partition reserved as virtual memory that won't fit in RAM
Not mountable
Used for hibernating

12

What is FAT?

File Allocation Table by Microsoft
FAT32
exFAT supports files over 4GB partitions over 8TB
Not journaled