VTrak 15100 User Manual
146
RAID 10 – Mirroring / Striping
Mirroring/Striping combines both of the RAID 0 and RAID 1 logical drive types. It
can increase performance by reading and writing data in parallel while protecting
data with duplication. At least four disk drives are needed for RAID 10 to be
installed. With a four-disk-drive logical drive, one drive pair is mirrored together
then striped over a second drive pair.
Figure 5. RAID 10 takes a data mirror on one drive pair and stripes it over
two drive pairs.
The data capacity is similar to a RAID 1 logical drive, with half of the total storage
capacity dedicated for redundancy. An added plus for using RAID 0+1 is that, in
many situations, such a logical drive offers double fault tolerance. Double fault
tolerance may allow your logical drive to continue to operate depending on which
two disk drives fail.
RAID 10 logical drives on VTrak consist of 4 to 14 disk drives.
2
4
6
8
1
3
5
7
2
4
6
8
1
3
5
7
Data Stripe
Data
Mirror
Disk Drives
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