■
RAID Level Concept
A description of each RAID level is shown below.
●
RAID0 (Striping)
Data is split in unit of blocks and stored across multiple drives.
Figure 1 RAID0 Concept
A
C
B
D
Data writing request
Drive#0
Drive#1
A
B
C
D
●
RAID1 (Mirroring)
The data is stored on two duplicated drives at the same time.
If one drive fails, other drive continues operation.
Figure 2 RAID1 Concept
A
B
C
D
A
B
C
D
Data writing request
A
B
C
D
Drive#0
Drive#1
2. Basic Functions
RAID Functions
17
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
P3AM-7722-25ENZ0
Summary of Contents for ETERNUS DX500 S3/DX600 S3
Page 218: ......