Raid 1 Arrays (Mirrored) - HP Xw6400 - Workstation - 4 GB RAM Manual

RAID 1 Arrays (Mirrored)

Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
Logical
Drive
Size = Half of total
physical capacity
RAID 1 = Mirror
•
Data is written to two physical drives in real time
•
On single disk failure – no system downtime
•
All data immediately available from other drive
Duplicate drive rebuilt upon replacement
•
Physical space is cut in half (for example, two 40GB drives needed for
•
40GB of space)
•
With no loss of data, RAID 1 is perfect for applications requiring very high
•
availability/security
All data written to both drives
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
Drive A
Physical Drives
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
Drive B
7