User manual

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Chapter 1 Overview

1.1 Features

RAG362 controller can provide non-stop service with a high degree

of fault tolerance by using RAG362 RAID technology and advanced array

management features.

controller connects to the host system by iSCSI interface. It

can be configured to numerous RAID level. The controller provides reliable data

protection for servers by using RAID 6. The RAID 6 allows two HDD failures without

any impact on the existing data. Data can be recovered from the existing data and

parity drives. (Data can be recovered from the rest drives.)

Snapshot-on-the-box(Qsnap) is a fully usable copy of a defined collection of data

that contains an image of the data as it appeared at the point in time, which means a

point-in-time data replication. It provides consistent and instant copies of data

volumes without any system downtime. Snapshot-on-the-box can keep up to 32

snapshots for one logical volume. Rollback feature is provided for restoring the

previous-snapshot data easily while continuously using the volume for further data

access. The data access which includes read / write is working as usual without any

impact to end users. The "on-the-box" implies that it does not require any proprietary

agents installed at host side. The snapshot is taken at target side. It will not consume

any host CPU time thus the server is dedicated to the specific or other application.

The snapshot copies can be taken manually or by schedule every hour or every day,

depends on the modification.

controller is the most cost-effective disk array system with

completely integrated high-performance and data-protection capabilities which meet

or exceed the highest industry standards, and the best data solution for small /

medium business (SMB) users.

1.1.1 Highlights

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RAG362 feature highlights

1. Front-end 2-ported iSCSI GbE ports with load-balancing and failover for high

availability

2. Hardware iSCSI off-load engine enabled

3. RAID 6, 60

4. iSnap without relying on host software

5. iSCSI jumbo frame support

6. Header/Data digest support

7. SATAII drive backward-compatible

RAG362