Infortrend
1-4
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
Block 1
Block 3
Block 5
Block 7
Block 2
Block 4
Block 6
Block 8
Striping
LogicalDrive
PhysicalDisks
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
Block 1
Block 2
Block 3
Block 4
Mirror 1
Mirror 2
Mirror 3
Mirror 4
Mirroring
L o g i c a l D r i v e
P h y s i c a l D i s k s
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
.
.
Block 1
Block 3
Block 5
Block 7
Block 2
Block 4
Block 6
Block 8
Striping
Logical Drive
Physical Disks
.
.
.
.
Mirror 1
Mirror 3
Mirror 5
Mirror 7
Mirror 2
Mirror 4
Mirror 6
Mirror 8
.
.
.
.
Striping
Mir
ro
r
RAID 0
Disk Striping
Figure 1 - 4 RAID 0
RAID 0 provides the highest performance
but no redundancy. Data in the logical
drive is striped (distributed) across several
physical drives.
RAID 1
Disk Mirroring
Figure 1 - 5 RAID 1
RAID 1 mirrors the data stored in one
hard drive to another. RAID 1 can only
be performed with two hard drives. If
there are more than two hard drives,
RAID (0+1) will be performed
automatically.
RAID (0+1)
Disk Striping with Mirroring
Figure 1 - 6 RAID (0+1)
RAID (0+1) combines RAID 0 and RAID 1 -
Mirroring and Striping. RAID (0+1) allows
multiple drive failure because of the full
redundancy of the hard drives. If there are
more than two hard drives assigned to
perform RAID 1, RAID (0+1) will be
automatically applied.
RAID 1
Disks required
2
Capacity
N/2
Redundancy
Yes
RAID 0
Minimum
Disks required
2
Capacity
N
Redundancy
No
RAID (0+1)
Minimum
Disks required
4
Capacity
N/2
Redundancy
Yes
Содержание External RAID Controller & Subsystem Infortrend
Страница 231: ...Infortrend 10 18 operating in write back mode it is recommended to install a battery module to each controller...
Страница 249: ...Infortrend 11 2 LN SB FL NAME Disk reserved space Partition Information LG Partition Size MB LG Partition Size MB...
Страница 276: ...Array Expansion 12 17 Drive E now has a capacity of about 25GB...
Страница 327: ...Event Messages D 27...