3Ware RAID Controllers Посібник з експлуатації - Сторінка 10
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Red Hot RAID 6
The fastest RAID 6 available
RAID 6 eliminates the risk of data loss if a second hard disk drive fails
while the RAID array is rebuilding. In a 3ware RAID 6 system, two sets
of parity are calculated, written, and rotated across all the drives.
This second simultaneous P + Q parity calculation allows the array
to survive up to two drive failures without losing data, for significantly
improved fault tolerance. RAID 6-enabled 9690SA and 9650SE control-
lers deliver unequaled RAID 6 performance.
RAID 6 represents a sea change in the RAID landscape. It provides
the industry with higher levels of data protection, data availability and
fault tolerance than RAID 5. By assuring data availability following a
second drive failure, users can rest assured that they are enjoying
maximum data protection, both in normal and degraded modes.
And, with RAID 6-enabled 3ware controllers, RAID 6 will not cripple
performance.
RAID 6 enabled 3ware Controllers
• 9690SA-8I
• 9650SE-8LPML
• 9690SA-8E
• 9650SE-12ML
• 9690SA-4I4E
• 9650SE-16ML
• 9690SA-4I
• 9650SE-24M8
3ware RAID Controller Part number Matrix
3ware 9690SA SAS/SATA Hardware RAID Controllers
Model Number
Host Interface
9690SA-8I
PCI Express x8
9690SA-8E
PCI Express x8
9690SA-4I4E
PCI Express x8
9690SA-4I
PCI Express x8
3ware 9650SE PCI Express-to-Serial ATA II Hardware RAID Controllers
Model Number
Host Interface
9650SE-2LP
PCI Express x1
9650SE-4LPML
PCI Express x4
9650SE-4LPME
PCI Express x4
9650SE-8LPML
PCI Express x4
9650SE-12ML
PCI Express x8
9650SE-16ML
PCI Express x8
9650SE-24M8
PCI Express x8
3ware 9550SX PCI-X-to-Serial ATA II Hardware RAID Controllers
Model Number
Host Interface
9550SXU-4LP
64-bit/133MHz
9550SXU-8LP
64-bit/133MHz
9550SXU-12
64-bit/133MHz
9550SXU-12MI
64-bit/133MHz
9550SXU-12ML
64-bit/133MHz
9550SXU-16ML
64-bit/133MHz
Ports
RAID Levels
8 Internal
0, 1, 5, 6, 10, 50, Single Disk
8 External
0, 1, 5, 6, 10, 50, Single Disk
4 Internal/4 External
0, 1, 5, 6, 10, 50, Single Disk
4 Internal
0, 1, 5, 6, 10, 50, Single Disk
Ports
RAID Levels
2
0, 1, Single Disk, JBOD
4
0, 1, 5, 10, Single Disk, JBOD
4
0, 1, 5, 10, JBOD
8
0, 1, 5, 6, 10, 50, Single Disk, JBOD
12
0, 1, 5, 6, 10, 50, Single Disk, JBOD
16
0, 1, 5, 6, 10, 50, Single Disk, JBOD
24
0, 1, 5, 6, 10, 50, Single Disk, JBOD
Ports
RAID Levels
4
0, 1, 5, 10, Single Disk, JBOD
8
0, 1, 5, 10, 50, Single Disk, JBOD
12
0, 1, 5, 10, 50, Single Disk, JBOD
12
0, 1, 5, 10, 50, Single Disk, JBOD
12
0, 1, 5, 10, 50, Single Disk, JBOD
16
0, 1, 5, 10, 50, Single Disk, JBOD
Host Data
Disk #1
Disk #2
Disk #3
P1 Parity
Q1 Parity
Block 1
Block 4
P2 Parity
Q2 Parity
Block 7
Block 8
P3 Parity
Block 10
Block 11
Block 12
Striped Data with Distributed Double Parity — RAID 6
3ware RAID 6: Two sets of parity data, P + Q, are striped across
disks. RAID 6 safeguards against data loss during rebuild mode
by allowing up to two consecutive drive failures for maximum
fault tolerance.
RAID 6 is recommended for:
• High capacity systems with eight or more
high capacity drives
• Enterprise/mission critical installations
Controller Connector
Footprint
SFF-8087 mini-SAS
Low profile
SFF-8088 mini-SAS
Low profile
SFF-8087 / SFF-8088 mini-SAS
Low profile
SFF-8087 mini-SAS
Low profile
Controller Connector
Footprint
Discrete
Low profile
Multi-lane (SFF-8087)
Low profile
Multi-lane (SFF-8088)
Low profile
Multi-lane (SFF-8087)
Low profile
Multi-lane (SFF-8087)
Full height
Multi-lane (SFF-8087)
Full height
Multi-lane custom hybrid
Full height
Controller Connector
Footprint
Discrete
Low profile
Discrete
Low profile
Discrete
Full height
Multi-lane (SFF-8470)
Full height
Multi-lane (SFF-8087)
Full height
Multi-lane (SFF-8087)
Full height
Disk #4
Disk #5
Block 2
Block 3
Block 5
Block 6
Q3 Parity
Block 9
P4 Parity
Q4 Parity
RoHS
6/6
6/6
6/6
6/6
RoHS
6/6
6/6
6/6
6/6
6/6
6/6
6/6
RoHS
6/6
6/6
6/6
6/6
6/6
6/6
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