User manual

INTRODUCTION

doubling the investment in disk drives. RAID 1 can provide greater

fault tolerance, but needs double disk drives and is too costly for

most users to implement on large volume sets. User wants protec-

tion of RAID 1 or better with an implementation cost comparable to

RAID 5. The RAID 6 can offer fault tolerance greater that RAID 1 or

RAID 5 but only consumes capacity of 2 disk drives for distributed

parity data. The 8/12/16/24-port RAID controllers provide the high-

est RAID 6 feature to meet above requirements.

The 4/8/12/16/24-port controllers also provide RAID levels 0, 1,

(10), 3, 5, and JBOD RAID conﬁgurations. Its high data availability

and protection derives from the following capabilities: Online RAID

Capacity Expansion, Array Roaming, Online RAID Level / Stripe Size

Migration, Dynamic Volume Set Expansion, Global Online Spare, Au-

tomatic Drive Failure Detection, Automatic Failed Drive Rebuilding,

Disk Hot-Swap, Online Background Rebuilding and Instant Availabil-

ity/Background Initialization.

During the controller ﬁrmware upgrade ﬂash process, it is possible

for a problem to occur resulting in corruption of the controller ﬁrm-

ware. With our Redundant Flash image feature the controller will

revert back to the last known version of ﬁrmware and continue oper-

ating. This reduces the risk of system failure due to ﬁrmware crash.

Easy RAID Management

SATA RAID controller build-in ﬁrmware with an embedded terminal

emulation that can access via hot key at BIOS boot-up screen. This

pre-boot manager utility can use to simplify the setup and manage-

ment of RAID controller. The controller ﬁrmware also contains HTTP

browser-based program that can access through the drive ArcHttp

Proxy Server function in Windows, Linux and FreeBSD environment.

The Web browser-based RAID management allows local and remote

to create and modify RAID set, volume set, and monitor RAID status

from standard web browser.