XtendLan xl-raid-2804issa, Installation And Configuration Manual

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Chapter 1 Introduction
The XL-RAID-2804ISSA RAID Subsystem
XL-RAID-2804ISSA connects to the host system in iSCSI interface. It can be configured to any
RAID level. XL-RAID-2804ISSA provides reliable data protection for servers and the
RAID 6
function is available. The RAID 6 function allows two HDD failures without any impact on the
existing data. Data can be recovered from the remaining data and parity drives. (Data can be
recovered from the rest disks/drives.)
Snapshot-on-the-box 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. XL-RAID-
2804ISSA Snapshot-on-the-box can keep up to 32 snapshots for all data volumes.
Rollback
feature is provided for restoring the previously-snapshot data easily while continuously using the
volume for further data access. The data access is regular as usual including read/write without
any impact to end users. The "on-the-box" terminology implies that it does not require any
proprietary agents installed at host side. The snapshot is taken at target side and done by XL-
RAID-2804ISSA. 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.
XL-RAID-2804ISSA is the most cost-effective disk array subsystem 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 users.