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Product Manual
• File and Application servers
• WWW, E-mail, and News servers
• Intranet servers
RAID 6 – B
lock
AnD
D
ouBle
P
ARIty
S
tRIPe
RAID level 6 stores dual parity data is rotated across the physical drives along with the block data. A RAID 6
logical drive can continue to accept I/O requests when any two physical drives fail.
Hence, a RAID 6 logical drive with (7) 100 GB physical drives has a capacity of 500 GB. A RAID 6 logical drive
Advantages
Disadvantages
• High Read data transaction rate
• Medium Write data transaction rate
• Good aggregate transfer rate
• Most versatile RAID level
• Disk failure has a medium impact on
throughput
RAID 6 stripes all drives with data and dual parity
Data
Blocks
Physical Drives
Double Distributed (Wide-space Q+Q) Parity
Summary of Contents for R2000 SERIES
Page 1: ...ProductManual ...
Page 2: ...Vess R2000 Series Product Manual Version 2 0 2014 PROMISE Technology Inc All Rights Reserved ...
Page 83: ...Vess R2600i with SAS JBOD expansion 56 Vess R2000 Series Product Manual Promise Technologies ...
Page 151: ...124 Vess R2000 Series Product Manual Promise Technologies Topology display ...
Page 302: ...275 Product Manual NAS Function and Management Redundancy with port configuration ...
Page 704: ... 2014 PROMISE Technology Inc All Rights Reserved ...