ZyXEL Communications NSA-2401 User Manual

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NSA-2401 User’s Guide
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Product Specifications
See also the Getting to Know Your NSA chapter for a general overview of the key features.
13.1  Feature Tables
These are the main external physical features.
These are some of the main firmware features of the NSA.
Table 109   Physical Features
2 USB Ports
Expand storage capacity by attaching compatible USB (version 2) 
hard drives to the USB ports.
2 Gigabit Ethernet Ports
The 10/100/1000 Mbps auto-negotiating Ethernet ports allow the 
NSA to detect the speed of incoming transmissions and adjust 
appropriately without manual intervention. They allow data transfers 
of either 100 Mbps or 1000 Mbps in either half-duplex or full-duplex 
mode depending on your Ethernet network. Use 8-wire Ethernet 
cables for Gigabit connections. The ports are also auto-crossover 
(MDI/MDI-X) meaning it automatically adjusts to either a crossover or 
straight-through Ethernet cable.
SATA Interface
Serial ATA is an interface technology that allows high speed data 
transfer. Serial ATA also allows more efficient internal airflow and 
also smaller chassis design. 
Hot Swappable Hard Drives
You can remove and install hard drives while the NSA is operating.
Buzzer
Audible alarm buzzer triggered by logs of a user-specified severity 
level.
Reset Button
Use the reset button to reset the NSA (user name to “admin”, default 
password to “1234”, default IP address to 192.168.1.3 with subnet 
mask of 255.255.255.0) or restore the factory default configuration 
file (all  configurations, including shares, users, passwords and so on 
are returned to the original configurations).
 
Table 110   Firmware Features
Hard Drive Arrays
RAID 0 with 2,3, or 4 hard drives. 
RAID 1 with 2 hard drives
RAID 5 with 3 or 4 hard drives
RAID 10 (1+0) with 4 hard drives
JBOD with 1,2,3, or 4 hard drives
Backup
Create separate archive backups or synchronize a copy.
Snapshot
A snapshot is a backup of your NSA data on the NSA. If files within a 
volume become infected or corrupted, you can revert the volume back 
to a previous snapshot. It’s a good idea to create a snapshot before 
backing up data, to be sure you’re backing up consistent data even if 
the backup is still running several hours later.