Table of Contents
Advertisement
Configuring your onboard RAID solution
Your server comes equipped with an onboard chipset for a SATA RAID solution, which supports
RAID levels 0 (striping), 1 (mirroring), 5 (distributed data and parity), and 10 (RAID 0 + 1). You
enable the onboard RAID solution in the BIOS (See
by launching the appropriate RAID BIOS console during the boot process.
Configuring the onboard SATA RAID solution
Level
Description and use
0
Data divided into blocks and
distributed sequentially (pure
striping). Use for non-critical data
that requires high performance.
1
Data duplicated on another disk
(mirroring). Use for read-intensive,
fault-tolerant systems.
5
Stripes data at a block level across
several drives and distributes parity
among the drives. No single disk is
devoted to parity.
10
A combination of RAID 1 and RAID
0. Raid 0 is used for performance,
and RAID 1 is used for fault
tolerance.
28
CHAPTER 4: Installing Components
Pros
High data
throughput for
large files.
100 percent
data
redundancy,
providing fault
tolerance.
Fast and
redundant
Fast and
redundant
"RAID Setup" on page
76) and configure RAID
Cons
Number of
drives
No fault tolerance.
One or two
Data is lost if a drive
(on this
fails.
server)
More disk space
Two
required. Reduces
usable disk space to
the size of the
smallest drive.
Reduced
performance during
rebuilds.
More disk space
Three
required. Reduces
usable disk space to
75% of total storage
in the disk array.
An additional drive
Four
required.
Fault
Tolerant
No
Yes
Yes
Yes
Advertisement
Table of Contents
Troubleshooting
