User Manual

G-SPEED eS INSTALLATION GUIDE
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APPENDIX B: RAID levels explained
RAID
Level Description Advantage Disadvantage Ideal For…
0 Disk striping Offers the highest
performance and a
useable storage
capacity of 100%
of total available
storage capacity
No fault tolerance -
failure of one drive
in the array results
in complete data
loss
Content creation
applications
requiring highest
storage capacity
1 Mirroring Maximum level of
data protection as
identical data is
written to multiple
drives
Useable storage
space is 50% of
total available
capacity
Applications in
which data
security is
paramount
5 Disk striping
with
distributed
parity
High read
performance,
medium write
performance with
data protection in
case of a drive
failure.
Useable storage
capacity equals
total capacity of all
drives in the array
less the capacity of
one drive.
For example, a 4x
1TB RAID 5 yields
a useable capacity
of 3 TB.
Disk failure results
in drop in
performance
Content creation
applications
requiring data
protection
10 Mirror of
striped drive
pairs
Higher
performance than
RAID 1 with same
level of data
protection.
Useable storage
space is 50% of
total available
capacity
Content creation
applications
requiring data
protection
JBOD Just-a-
bunch-of-
disks
Each drive can be
accessed as an
individual volume.
Useable storage
capacity is 100%
of total available
storage.
No fault tolerance Audio
applications
APPENDIX C: Notes
When the G-Tech web GUI is open dropped frames
may occur in editing applications such as Final Cut
Pro. We recommend not having the GUI open while
working in these programs.
It is recommended not to exceed the standard eSATA
cable length of 1 meter (3 feet).
Up to (4) G-SPEED eS storage units can be attached
to the G-Tech RAID controller for up to 16TB of
capacity and over 600 MB/sec of performance.
Replacements / extra G-SPEED eS disk modules are
available for purchase online at:
www.g-technology.com/products/g-speed-es.cfm