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Linux Foundation Certified SysAdmin > File systems > Flashcards

Flashcards in File systems Deck (12)
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1
Q

What is journaling?

A

Designed to prevent data corruption/loss from power loss

2
Q

How does journaling work?

A

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

3
Q

What is the ext file system?

A

Extended file system

4
Q

What features did Ext2 bring?

A

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

5
Q

What features did Ext3 bring?

A

Journaling

6
Q

What features did Ext4 bring?

A

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

7
Q

What is BtrFS?

A

B-Tree File System

Drive pooling, snapshots, compression, online defragmentation

8
Q

What is ZFS?

A

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

9
Q

What is XFS?

A

Can be enlarged but not shrunk on the fly

Good with large not small files

10
Q

What is JFS?

A

Journaled File System developed by IBM for AIX

Partitions can be enlarged not shrunk

11
Q

What is Swap?

A

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

12
Q

What is FAT?

A

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