Intel Matrix Storage Manager Quick Guide for Acer Selected Veriton PC V1.1
8/21
multiple controllers with
only one drive per controller
¾
Very simple design
¾
Easy to implement
RAID1
¾
Twice the Read transaction
rate of single disks, same
Write transaction rate as
single disks
¾
100 percent redundancy of data
means no rebuild is necessary
in case of a disk failure, just
a copy to the replacement disk
¾
Transfer rate per block is
equal to that of a single disk
¾
Under certain circumstances,
RAID1 can sustain multiple
simultaneous drive failures
¾
Simplest RAID storage
subsystem design
¾
Highest disk overhead of all
RAID types (100%) —
inefficient
¾
May not support hot-swap of
failed disk when implemented
using software RAID
RAID5
¾
Highest Read data transaction
rate
¾
Medium Write data transaction
rate
¾
Low ratio of ECC (parity)
disks to data disks means high
efficiency
¾
Good aggregate transfer rate
¾
Most complex controller
design
¾
Difficult to rebuild in the
event of a disk failure (as
compared to RAID 1)
¾
Individual block data
transfer rate same as single
disk
RAID10
¾
Very high I/O rates are
achieved by striping RAID1
segments
¾
Excellent solution for sites
that would normally use RAID1
¾
Very limited scalability at a
very high inherent cost
¾
Expensive to maintain
