Raid 10 Logical Drives - Adaptec RAID 2130SLP User Manual

RAID 10 Logical Drives

A RAID 10 logical drive is built from two or more equal-sized RAID 1 logical drives. Adaptec
RAID controllers support a maximum number of 128 disk drives in a RAID 10 logical drive.
Data in a RAID 10 logical drive is both striped and mirrored. Mirroring provides data
protection, and striping improves performance.
Drive segment size is limited to the size of the smallest disk drive in the logical drive. For
instance, a logical drive with two 250 GB disk drives and two 400 GB disk drives can create two
mirrored drive segments of 250 GB, for a total of 500 GB for the logical drive, as shown in this
figure.
Disk Drive 1
Disk Drive 2
Disk Drive 3
Disk Drive 4
Disk Drives in Logical Drive
Drive Segment Size
250 GB
(Smallest Disk Drive)
250 GB
Disk Drive 1
Disk Drive 2
400 GB
Disk Drive 3
Disk Drive 4
400 GB
Selecting the Best RAID Level
1 3 ... 499
2 4 ... 500
1 3 ... 499
Unused Space = 150 GB
2 4 ... 500
Unused Space = 150 GB
RAID 10 Logical Drive = 500 GB
140
●