1U-4 Bay Rackmount SMB NAS

D-Link Corporation

DNS-1550-04 ver. A1 1U-4 Bay Rackmount SMB NAS

External Product Spec

Version 1.1 Date: 2011/4/27

D-Link Confidential Revision History

Version Revised Date Person Name Description 1.0 2011/1/20 Neo Yin First Release 1.1 2011/4/27 Neo Yin Add product picture, remove vendor’s name

D-Link Confidential 1.0 Product Features: 1.1 Hardware Specifications

DNS-1550-04 is the Intel processor based x86 platform. The default RAM size is 2GB. DNS-1550-04 also equips with two Gigabit Ethernet ports that can be used for both NAS and iSCSI architectures. Please refer to Table 2-1 for more detail. Table 2-1 DNS-1550-04 Hardware Spec Form Factor 1U-Rack Processor Intel Atom D525 Dual-Core 1.8GHz RAM (SO-DIMM slot x 1) 2GB Flash 256MB LCD Module No Power Supply 226W x 2 (80 PLUS) Gigabit Ethernet Port 2 USB 2.0 Port 5 Chassis Metal HDD Tray Yes

1.2 Front and Rear Panel Components Table 2-2 Front Panel component and function description Item Function Description Ethernet Status LED Identify the network status:  LED – Orange: Network active in 100 MB/s Green: Network active in 1000 Mb/s One-Touch Backup Identify the one touch backup status (blinking while the LED process is running) Disk Status LED  No drive: dark  Drive is normal: blue  Disk error: red  Disk rebuilding: orange  Physical drive locate: flashing blue

Disk Activity LED Disk access status System Status LED  Power on: flashing blue -> orange -> red  Booting to OS: red  System ready: blue  Disk array degrade: orange  Disk array offline: red  Enclosure error: red  Enclosure locate: flashing blue USB Connection For flash drive backup (pen drive to NAS) One-Touch Backup Enable the one-touch backup

D-Link Confidential Button  Flashing blue while the backup process us running Power Button Power on/off the NAS Select Button Configuration selection Enter Button Setting confirmation Disk Carrier Disk Carrier

Table 2-3 Rear panel component and function description Item Description USB Connection For USB printer and flash drive backup RJ45 Network For Ethernet cable connection Connection VGA Output VGA output for debug System Cooling FAN System cooling fan Power Connection Power cord connection

D-Link Confidential D-Link Confidential 1.2 Software Specifications 1.2.1 RAID Management Table 3-1 describes major RAID management features in DNS-1550-04.

Table 3-1 DNS-1550-04 RAID Management Item Description Support RAID 0,1,5,6,10, JBOD Type RAID/Disk Yes Roaming Hot-swap Yes Online RIAD Yes Migration Online Capacity Yes Media Patrol Yes Redundancy Yes Check Redundancy Check (RC) is performed on all fault tolerance RAID logical drives. Rebuild Yes Support both auto and manual rebuild. PDM Yes With Predicative Data Migration (PDM), the controller constantly monitoring the drive’s status, such as error retries, sector re-mapping, SMART PFA. Once the controller detects the unhealthy status, the data will be copied from unhealthy drive to the spare drive. During this process, the unhealthy drive is still online and fully functioned. The unhealthy drive will be tagged as offline after the copy finish. Synchronization Yes This feature increases the write performance and runs in the background automatically.

1.2.2 System Management and Configuration DNS-1550-04 provides the GUI for the system configuration. It supports:

Table 3-2 Major Management function

D-Link Confidential Item Description Web-based the GUI interface provides the friendly interface for the Management system configuration. Management HTTP, Telnet, SSH Console System Display major system information in the single page. Dashboard E-mail alert Yes Firmware The NAS unit will connect to firmware server to check if Upgrade Notice there is the new version. Resource Monitor the NAS system status: CPU, RAM, Temperature, Monitor DDNS Yes NTP Yes System logo NVRAM Event, Runtime Event, Logo export System Yes configuration export and import Safe Mode Users can recovery the system in cased of firmware upgrade fail Reset to Factory Yes mode

1.2.3 Networking and File Sharing

Table 3-3 Major Networking and file sharing function Item Description DHCP Support both Client and Server TCP/IP Supports both IPV4 and IPV6 iSCSI Supports both iSCSI target/imitator mode, CHAP, LUN mapping, LUN Masking, MPIO Sharing Protocol SMB/CIFS, NFS, AFP, FTP, WebDAV SNMP Yes Max User 4096 Account

D-Link Confidential Max Group 512 Max Shared 512 Folders Max Concurrent 256 Connection

1.2.4 Backup Solution

Table 3-4 Backup solutions Item Description Client Backup  a rsync base backup utility supports schedule and instantly backup.  support most 3-patry backup solution like Acronis backup and recovery. Local Backup DNS-1550-04 equips with 5 USB port that can be used for external flash drive backup and restore. The front end USB port is used for backup to NAS. The rear USB ports are used for backup from NAS to flash drive. Remote Backup DNS-1550-04 is able to backup to rsync backup server. Remote backup support volume snapshot before backup. One Touch Backup from USB flash drive to NAS Backup Snapshot DNS-1550-04 snapshot consists of two unique features:  Snapshot volume capacity expansion  Users can access its snapshot home folder Cloud storage DNS-1550-04 supports Amazon S3 cloud storage backup backup services.

1.2.5 Power and Disk Management Table 3-5 Power and Disk Management Item Description Power Saving Yes Mode Schedule Power Yes on/off

D-Link Confidential Wake-on-LAN Yes Auto Power Yes Recovery MAID 2.0 Yes S.M.A.R.T Yes

1.2.6 Multimedia Application Table 3-6 Multimedia Applications Item Description Squeeze Center Yes iTunes Server Yes Firefly Yes UPnP Server Yes Windows 7 logo Yes

1.2.7 File System Table 3-7 File System Support list Item Description NAS System EXT3 External USB disk EXT3, EXT4 (SR1), FAT32, XFS, HFS+, NTFS

1.2.8 Support Client OS and Browser Table 3-8 Support client OS and Browser Item Description Client OS Windows Server: Windows 2000/2003/2008 Windows workstation: Windows XP, Windows Vista, Windows 7 Mac: OS9, OSX Linux Web Browser Internet Explorer 7+, Firefox 3.6 and above, Safari 5.0 and above, Google Chrome

1.2.9 Language Supports DNS-1550-04 UI and QSG (Quick Start Guide) supports multi language includes: English, French, Spanish, German, Japanese, Simplified Chinese, Traditional Chinese, Korean, Russian, Italian.

D-Link Confidential 4. ID and Mechanical Design Metal Case ■19" Metal Case □ 11" Metal Case □ Others Plastic Case □ D-Link Big Size 235x162x36mm □ D-Link Middle Size 193x118x31mm □ D-Link Small Size 142x109x31mm □ D-Link Palm Size 104x61x28mm □ D-Link Mini D Size 90x82x31mm □ D-Link Pocket Size 80x52x27mm □ Others Dimension 429(L) * 442 (W) * 44 (H) mm

5 Technical Specifications 1.3 Product Dimension 429(L) * 442 (W) * 44 (H) mm

1.4 Power Supply 226W x 2 (80 PLUS Bronze) Input Voltage: 100-240 V(AC)

D-Link Confidential Input Frequency: 50-60 Hz Input Current: 3.5~1.5A

1.5 Operating Conditions Temperature: Operating: 5°C to 35°C Humidity: Operating 10% to 85%

1.6 Warranty 3 years

D-Link Confidential