User manual

Chapter 1 RAID Introduction
1.1 Features
The Addonics ISC8P2G-S iSCSI subsystem is a high-performance hardware
RAID controller.
• 2 GbE NIC ports.
• iSCSI jumbo frame support .
• RAID 6, 60 ready .
• Snapshot (QSnap) integrated on the subsystem.
• SATA II drives backward compatible .
• One logic volume can be shared by as many as 32 hosts.
• Host access control .
• Configurable N-way mirror for high data protection .
• On-line volume migration with no system downtime .
• HDD S.M.A.R.T. enabled for SATA drives .
• Header/data digest support .
• Microsoft VSS, VDS support.
With proper configuration, ISC8P2G-S iSCSI subsystem can provide non -stop
service with a high degree of fault tolerance using RAID technology and
advanced array management features.
The ISC8P2G-S iSCSI subsystem connects to the host system via iSCSI
interface. It can be configured to any RAID level. ISC8P2G -S provides reliable
data protection for servers using RAID 6. RAID 6 allows two HDD failures without
any impact on the existing data. Data can be recovered from the remaining data
and parity drives.
The ISC8P2G-S iSCSI subsystem is the most cost -effective disk array controller
with completely integrated high -performance and data -protection capabilities
which meet or exceed the highest industry standards. The best data solution
for small/medium business (SMB) users.
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 a point in time. It is a
point-in-time data replication. It provides consistent and instant copies of data
volumes without any system downtime. Addonics Snapshot-on-the-box can
keep up to 32 snapshots for all data volumes. Rollback feature is provided for
restoring the previous -snapshot data easily while continuously using the volume
for further data access. Data access whic h includes read/write is working at the
background 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