Operation Manual

AIRIS POWER SERVER
User Manual Rev 1.0
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functionality, any sub-network can be grouped as though they are in the same
network.
Firewall
The Powerful Server appliance provides a powerful firewall capable of
preventing hackers from attacking the gateway or internal network. Many
famous DoS attacks can be detected and prevented. Whenever an attack is
detected, the system will alert the network manager that an attack has
occurred. The network manager can then inspect the log information to find
the IP address that sent the packets.
Easy Installation
In order to facilitate the use of the Powerful Server appliance, the product
comes with default settings that most network managers can install it without
any modification. If the network manager needs to modify any of the settings,
the Powerful Server appliance provides an intuitive Web-based user
interface.
RAID (Redundant Array of Independent Disks)
RAID is a hard disk access technology that allocates space of disk drives that
utilize two or more drives in combination so as to increase fault tolerance and
improve overall performance. Powerful Server appliance supports 2 types of
RAID, RAID 0 and RAID 1.
 RAID 0 － Striped Disk Array without Fault Tolerance: Provides
data striping (spreading out blocks of each file across multiple disk
drives) but no redundancy. This improves performance but does not
deliver fault tolerance. If one drive fails then all data in the array is
lost. The size of this RAID type equal to sum of Disk 1 and Disk 2.
 RAID 1 － Mirroring Disk Array: A technique in which data is written
to two duplicate disks simultaneously. This way if one of the disk
drives fails, the system can instantly switch to the other disk without
any loss of data. The size of this RAID type equal to single Disk.