HighPoint RocketStor 6434TS, User Manual, Page: 65 / 67

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Appendix D: RAID Level Reference Guide
1
Type Description Min.
disks
Usable
space
Advantage Disadvantage Application
JBOD
Just a bunch of
disks
1 100%
Each drive can be
accessed as a single
volume
No fault tolerance - failure
of one drive results in
complete data loss
Backup
RAID 0
Disk Striping
2 100%
Offers the highest
performance
No fault tolerance – failure
of one drive in the array
results in complete data
lose
Temporary file,
performance driven
application.
RAID 1
Disk Mirroring
2 50%
Provides convenient low-
cost data redundancy for
smaller systems and
servers. Can handle 1
disk failure.
Useable storage space is
50% of total available
capacity.
Operating system,
backup, and
transaction database.
RAID 5
Disk Striping
with Rotating
parity
3 67-88%
High read performance,
and medium write
performance with data
protection with a single
drive failure
.
Can
handle 1 disk failure.
Not recommended for
database applications
that require
frequent/heavy write
sessions.
Data archives, and
ideal for
application that
require data
protection
RAID 6
Disk Striping
with dual
rotating parity
4 50-75%
High read performance,
and medium write
performance with data
protection in case of up to
two drives failure
Not recommended for
applications that require
frequent/heavy write
sessions.
Data archives and
ideal for application
that requires data
protection
RAID
10
Disk Mirroring
followed by
stripe
4 50%
High read performance
and medium write
performance with data
protection for up to 2-
drive failures
Useable storage capacity
equals total capacity of all
drives in the array minus two
Fast database and
application servers
which need
performance and data
protection
RAID
50
Disk Mirroring
Followed by
RAID5
6
67-75%
High read performance,
and medium write
performance for with data
protection in case of up to
two drives failure
Not recommended for
applications that require
frequent/heavy write
sessions
Data archives and
ideal for application
that requires data
protection
1
Refer to the RAID controller product specifications for supported RAID levels.