Modules & Options
6 - 4 SATA Mode Setup (Optane™, RAID or AHCI)
6
RAID Level
Description
RAID 0
Identical drives reading and writing data in parallel to
increase performance
. RAID 0
implements a striped disk array and the data is broken into blocks and each block is
written to a separate disk drive.
A Striped Array (RAID 0) is NOT fault-tolerant.
The failure of one drive will result in
the loss of all data in the array. It is designed to increase disk performance by
spreading the I/O load across the channels and drives.
RAID 1
Identical drives in a mirrored configuration used to
protect data
. Should a drive that is
part of a mirrored array fail, the mirrored drive (which contains identical data) will
handle all the data. When a new replacement drive is installed, data to the new drive is
rebuilt from the mirrored drive to restore fault tolerance.
A
Mirrored Array (RAID 1)
provides full data protection, as data can simply be copied
from a healthy disk to a replacement for any failed disk.
RAID 5
RAID 5 (Parity)
is the
most regularly used secure RAID level
, and it
requires at
least 3 drives
. RAID 5 consists of block-level striping with distributed parity so data
blocks are striped across the drives and parity data is not written to a fixed drive, but is
spread across all drives. Using the parity data, the computer can recalculate the data
of one of the other data blocks, should that data no longer be available. A RAID 5 array
can withstand a failure of a single drive so that no data is lost.
SATA Mode
Selection
The SATA mode selection
should be made
before in-
stalling your operating
system
.
DO NOT change your se-
lected SATA mode
unless
you intend to reinstall your
operating system. Make
sure you have backed up all
your data before doing so.
Solid State Drives
All solid state drives in a
RAID should be identical
(the same size and brand)
in order to prevent unex-
pected system behavior.
Table 6 - 1
Raid Levels
Summary of Contents for X170SM-G
Page 1: ...V20 1 00 ...
Page 2: ......
Page 20: ...XVIII Preface ...
Page 66: ...Quick Start Guide 1 34 1 ...
Page 124: ...Drivers Utilities 4 14 4 ...
Page 252: ...Troubleshooting 7 18 7 ...
Page 258: ...Interface Ports Jacks A 6 A ...
Page 320: ...Video Driver Controls C 34 C ...