328
Chapter 9: Technology Background
RAID 50
– Striping of Distributed Parity
RAID 50 combines both RAID 5 and RAID 0 features. Data is striped across
physical drives as in RAID 0, and it uses distributed parity as in RAID 5. RAID 50
provides data reliability, good overall performance, and supports larger volume
sizes.
Figure 8. RAID 50 is a combination of RAID 5 and RAID 0
Distributed Parity
Axle 1
Data
Stripes
Axle 2
Disk Drives
The data capacity RAID 50 logical drive equals the capacity of the smallest
physical drive times the number of physical drives, minus two.
RAID 50 also provides very high reliability because data is still available even if
multiple physical drives fail (one in each axle). The greater the number of axles,
the greater the number of physical drives that can fail without the RAID 50 logical
drive going offline.
Component
Minimum
Maximum
Number of Axles
2
16
Physical Drives per Axle
3
32
Physical Drives per Logical Drive
6
256
Summary of Contents for DS300f
Page 1: ...ASUS Storage DS300f DS300i User Manual Version 1 0 ...
Page 10: ...x Language 178 Closing Smart NAS Console 178 ...
Page 27: ...8 Chapter 1 Introduction to ASUS Storage ...
Page 57: ...3 8 Chapter 2 ASUS Storage Installation ...
Page 73: ...54 Chapter 3 ASUS Storage Setup ...
Page 164: ...14 5 Chapter 4 Management with ASUS Storage Management ...
Page 221: ...202 Chapter 5 SmartNAVI ...
Page 235: ...216 Chapter 6 Management with the CLU Figure 4 Controller Status LED Controller Status ...
Page 337: ...318 Chapter 8 Maintenance ...
Page 425: ...406 Chapter 11 Support ...
Page 433: ...414 Appendix A Setting up NAS Network Drives ...
Page 449: ...430 Index ...