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Vess R2000 Series Product Manual
Promise Technologies
rAid 60 – s
triPing
Of
d
Ouble
P
Arity
RAID 60 combines both RAID 6 and RAID 0 features. Data is striped across disks as in RAID 0, and it uses
double distributed parity as in RAID 6. RAID 60 provides data reliability, good overall performance and supports
larger volume sizes.
The total capacity of a RAID 60 logical drive is the smallest physical drive times the number of physical drives,
minus four.
RAID 60 also provides very high reliability because data is still available even if multiple physical drives fail (two
in each axle). The greater the number of axles, the greater the number of physical drives that can fail without
the RAID 60 logical drive going offline.
Advantages
Disadvantages
• High Read data transaction rate
• Medium Write data transaction rate
• Good aggregate transfer rate
• Safest RAID level
• High disk overhead – equivalent of two
drives used for parity
• Slightly lower performance than RAID 50
RAID 60 is a combination of RAID 6 and RAID 0
Physical Drives
Data
Stripes
Axle 1
Axle 2
Summary of Contents for R2000 SERIES
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Page 302: ...275 Product Manual NAS Function and Management Redundancy with port configuration ...
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