Acer Veriton M661 Benutzerhandbuch - Seite 7
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Intel Matrix Storage Manager Quick Guide for Acer Selected Veriton PC V1.1
Disk 1
Disk 2
Block A1
Block A2
Block B1
Block Bp
Block Cp
Block C1
Physical
Physical
disk
disks
120 GB
120 GB
RAID10 (RAID1+0: striping + mirroring)
• A combination of RAID1 and RAID0 — mirroring and striping, but without
parity.
• RAID10 is used for both replicating and sharing data among disks.
• RAID10 is often the primary choice for high-load databases, because the
lack of parity to calculate gives it faster write speeds.
• RAID10 volume capacity = 2 x (capacity of smallest HDD)
RAID 0
RAID 1
Disk 1
Disk 2
Block A1
Block A1
Block A3
Block A3
Block A5
Block A5
Physical
Physical
Physical
disks
disks
disks
120 GB
120 GB
120 GB
Characteristics/Advantages
RAID0
RAID0 implements a striped
disk array, the data is broken
down into blocks and each
block is written to a separate
disk drive
I/O performance is greatly
improved by spreading the I/O
load across many channels and
drives
Best performance is achieved
when data is striped across
Disk 3
Block Ap
Block B2
Block C2
Physical
Logical
disks
disk
240 GB
120 GB
RAID 1
Disk 3
Disk 4
Block A2
Block A2
Block A4
Block A4
Block A6
Block A6
Physical
Logical
disks
disks
240 GB
120 GB
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Disadvantages
Not a "True" RAID because it is
NOT fault-tolerant
The failure of just one drive
will result in all data in an
array being lost
Should never be used in
mission-critical
environments