The SS-839 Pro Turbo NAS from Qnap is a power-conscious tower NAS server. Eight SATA HDD bays accommodate 2.5" hard drives, allowing you to store your media and other files in a centralized location and access it from any computer or other device on your network. The fast 1.6GHz Intel Atom CPU and 2GB of RAM ensure that data retrieval is fast and efficient. The server supports a variety of RAID configurations, allowing you to customize your system based on whether you'd prefer more storage or security.
The SS-839 Pro can function as a web server (phpMyAdmin is built-in) or a MySQL server. You can also connect it to a printer for network printer sharing. A one-touch copy feature makes backing up your data simple and straightforward. A wide variety of management tools let you get the most out of your NAS, including scheduled events, event tracking, UPS support and SMS support.
High Performance and Advanced RAID Redundancy
Powered by an Intel Atom 1.6 GHz CPU and 2GB DDRII memory, the SS-839 Pro supports RAID 0/1/5/6/5 + hot spare, single, and JBOD, Online RAID Capacity Expansion, and Online RAID Level Migration.
Energy-Saving Quiet Design
The SS-839 Pro is an energy-saving storage solution with excellent cooling and low noise design. The power consumption of the NAS is only 34W in operation (in RAID 5 configuration with eight 500GB hard drives installed), which helps save your electricity expense to a large extent.
Secure Data Protection by 256-bit Volume-based Encryption
To meet the demand for high security data protection of the business users, the SS-839 Pro supports AES 256-bit volume-based encryption. The encrypted disk volumes of the NAS must be unlocked by the encryption password to be accessed, which eliminates the fear of confidential data leakage if the hard drives or the NAS were stolen.
Note:
Data encryption functions may not be available in accordance to legislative restrictions of some countries.
Versatile Applications for Business and Corporation
The SS-839 Pro supports file sharing across Linux, UNIX, Mac, and Windows platforms. Versatile business applications are supported, e.g. file server, FTP server with encryption, printer server, web server, and encrypted remote replication. Also, Windows AD (Active Directory) is supported to help create an easy-to-access environment and lower the maintenance cost.
Easy Setup and Low-cost Maintenance
The handy LCD display on the NAS provides a speedy and easy approach to initialize the NAS and set up the RAID configuration without using any computer. The system information and settings are also displayed for easy management. The schedule power on/off feature is available on the NAS for you to flexibly manage the NAS server's up time according to the working hours. Also, Wake on LAN is supported for convenient remote wakeup of the NAS in the local network.
iSCSI Solution with Virtual Space Allocation
The SS-839 Pro can serve as a NAS and an iSCSI target server. The built-in iSCSI target feature provides an affordable IP-SAN (Storage Area Network) alternative. Also, the "Virtual Space Allocation" (Thin Provisioning) feature is provided which allows you to flexibly allocate the capacity of iSCSI LUN (Logical Unit Number) at the beginning regardless of the physical volume capacity.
Benefits of Dual Gigabit LAN Deployment
Failover
The dual LAN ports can be configured as failover which allows the NAS server to sustain the failure of one network port to provide continuous services.
Load Balancing
The two LAN ports of the NAS can be configured as load balancing mode for bandwidth aggregation to boost the file transfer speed (works with managed Ethernet switch with 802.3ad configured).
Multi-IP Setting
The NAS can be deployed with two IP settings for sharing among different workgroups in two different subnets.
High Reliability, Disaster-proof NAS for Business
DOM Architecture with Embedded Fail-safe Dual OS
All the OS and applications are embedded on the DOM. The NAS allows system booting without accessing the physical disk sectors and that avoids unsuccessful system startup caused by bad block sectors or file errors on the hard drives. Two operating systems are built on the DOM for system booting alternatively upon every system startup. When one fails, the other one will be used to boot up instead, and the failed OS is recoverable from the other healthy OS.
Advanced RAID Management with Hot-swap Design
The NAS offers advanced RAID 0, 1, 5, 6, 5 + Spare, Single, and JBOD disk configurations. It also supports hot-swap design that a failed drive can be replaced by hot swapping without turning off the server. Besides, the best-in-class RAID on the NAS brings users a higher level of data security by allowing one more hard drive failure than other NAS of the same level.
Online RAID Capacity Expansion
The storage capacity of a RAID configuration can be expanded by replacing the hard drives with larger ones. All the data will be kept and seamlessly moved to the newly installed hard drives. There is no need to turn off the server during the process.
Online RAID Level Migration
You can upgrade the disk configuration to higher RAID level with the data retained. There is no need to turn off the server during the process.
Virtual Disk Drive (VDD)
The unique "Virtual Disk Drive" adds flexibility to expand the capacity of NAS. By using the built-in iSCSI initiator, the NAS can connect to other iSCSI targets on the network and turn them into virtual disks, which become multiple single volumes on the NAS. Up to 8 virtual disks can be stacked. The NAS serves as the storage stack chaining master. The user only needs to connect to this single entry (QNAP NAS) and is able to reach and use all the iSCSI target storages on the network.
Flexible Built-in iSCSI Target Service
The SS-839 Pro can act as a NAS and iSCSI target server at the same time. It provides a cost-efficient iSCSI solution to set up an IP-SAN. You can make use of the built-in iSCSI target service to add up to 8 iSCSI devices. Different iSCSI Target LUNs (Logical Unit Number) can be defined as storage expansion or backup destination of the existing application servers, such as database servers and mail servers.
Furthermore, the "Virtual Space Allocation" (Thin Provisioning) feature is provided which allows you to flexibly allocate the capacity of iSCSI LUN (Logical Unit Number). When the physical storage capacity of the volume is going to be full, you can easily expand the storage capacity by "Online RAID Capacity Expansion", or adjust/ remove the current unused volume space according to the demands.
Furthermore, the "Virtual Space Allocation" (Thin Provisioning) feature is provided which allows you to flexibly allocate the capacity of iSCSI LUN (Logical Unit Number). When the physical storage capacity of the volume is going to be full, you can easily expand the storage capacity by "Online RAID Capacity Expansion", or adjust/ remove the current unused volume space according to the demands.
S.M.A.R.T. & Advanced HDD Health Scanning (HHS)
The NAS supports Hard Disk Drive S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) for monitoring the hard drive status. Moreover, the NAS is embedded with HHS Technology which supports disk checking and bad blocks scanning.
Power Management
Hard Disk Standby
You can configure the hard disks to enter standby mode if there is no disk access within the specified period.
Schedule Power On/Off
The flexible schedule power on/off feature is now provided on the NAS for IT administrators to manage the NAS server's up time according to the working hours. You can set the time for automatic system power on, power off, or restart on any days of the week.
UPS Support
The NAS supports the majority of USB UPS devices (usbhid-ups supported) which enables the users to store the data in time and avoid critical data loss when power outage occurs during data transfer. It also supports advanced stand-by mode setting that users can set the time for the server to enter standby mode when an abnormal AC power supply is detected. When the power resumes, the server resumes to the operation status before the power outage.
Auto Power on after Power Loss
You can configure the NAS to turn on/ off when the AC power resumes after a power loss.
High Manageability NAS for Business
Touch-N-Go PC-less Installation
You can use the handy LCD to finish the first time installation in 3 simple steps. The NAS will automatically complete the hard disk formatting and RAID building.
Sharing Files across Windows, Mac, Linux, and UNIX
The NAS is designed for users to share the files across Windows, Mac, Linux, and UNIX environment.
Windows AD
The Windows AD feature enables you to import user accounts from AD domain to NAS to reduce the time and effort for account setup, and the users can use the same set of login name and password.
Web File Manager
The NAS provides Web File Manager for you to easily download, upload, and manage the files on the server by web browser.
Ease of User and Share Folder Management
The NAS supports batch creation of users and share folders to save your time and effort in account and folder creation. For the security of Windows network environment, you can hide or show network share folders.
Complete Backup Solution
QNAP Backup Software - NetBak Replicator
The backup software, NetBak Replicator, is provided for the NAS users to perform real-time synchronization or schedule backup from multiple PCs to the NAS.
3rd Party Backup Software Ready
The NAS works well with other backup software, e.g. Acronis True Image, CA BrightStor ARCserve Backup, EMC Retrospect, Symantec Backup Exec, and LaCie Silverkeeper.
Remote Replication by Rsync
The data on the NAS can be backed up to or from another Turbo NAS or Rsync server over the network.
One Touch USB Auto Copy
The one touch button can be configured to trigger instant data backup from the external USB device to the NAS or the other way round (applies to the USB device connected to the front USB port of the NAS only).
Secure Data Storage, Access, and Sharing
Comprehensive event logs provide detailed logs of file-level data access to the NAS via samba, FTP, AFP, HTTP, HTTPS, Telnet, and SSH, and networking services accessed by online users are all recorded. SSL security (HTTPS) means that the NAS can be accessed and configured by web browser securely. Remote login to the NAS by SSH (secure shell) or Telnet connection is supported. Secure FTP means that data can be transmitted with SSL/TLS (explicit) encryption. The Passive FTP port range setup is also supported. Third party partners are allowed to upload data to the NAS but not able to read or edit the data on FTP server.
Policy-based Automatic IP Blocking
To prevent the NAS from malicious attacks, the server manager can create an IP filter policy to allow, deny, or auto-block the IP address or network domain which attempts to connect to the NAS via SSH/ Telnet/ HTTP(S)/ FTP/ samba/ AFP.
Powerful System Management Tools
Wake on LAN
Enable this option to power on the NAS remotely by Wake on LAN. Wake on LAN helps you manage your NAS conveniently.
Smart Fan
The fan rotation speed is automatically adjusted according to the server's temperature. You can also define the system temperatures to trigger high speed or low speed rotation of the fan. By manually setting the fan rotation speed, the fan will rotate at the defined speed continuously.
Instant SMS/Email Alert
You can configure the SMTP server and SMSC server settings on the NAS in order to receive instant system warning or error messages by email or SMS.
SSL Secure Certificate
The administrator can upload a secure certificate and an RSA private key in X.509PEM format issued by a trusted provider in order to allow the users to access the NAS by secure SSL login.
Syslog Settings
All the system event logs and connection logs can be saved to a remote syslog server.
Network Recycle Bin
The files deleted from the network shares of the NAS will be moved to a particular recycle bin folder. You can restore your data anytime in case of unintended file deletion.
Comprehensive Event Log System
The logs of connections to the NAS via samba, FTP, AFP, HTTP, HTTPS, Telnet, and SSH, and networking services accessed by online users are all recorded.
Detailed System Information
You can view the system status, e.g., CPU usage, total memory, free memory, packets received, packets sent, error packets, system up time, CPU temperature, system temperature, HDD temperature, and system fan speed.
Surveillance Station
The Surveillance Station enables users to configure and connect 4 IP cameras simultaneously and remotely manage the functions, including real time monitoring, recording, and playback by IE browser over the Internet. Users can flexibly define the recording settings: continuous recording, motion-detection recording, and schedule recording according to their security plan. All the files are stored in AVI format with time stamp, so users can easily search and play the files by Windows Media Player.
Comprehensive IP Camera Support
The Surveillance Station of QNAP NAS supports all the leading network camera brands such as AXIS, D-Link, IPUX, LevelOne, Linksys, Panasonic and Vivotek etc. By using particular models, users can use two-way video and audio monitoring and recording, and smart PTZ control to control the monitoring direction via the web interface. Each of the supported cameras has been put through stringent tests with the NAS series in QNAP's laboratory to guarantee 100% compatibility and reliability with all these camera brands.
Software Expansion and Website Management
Web Server with Built-in phpMyAdmin
With the built-in phpMyAdmin, Joomla!, editable php.ini, MySQL and SQLite, you can easily set up your web server and other online applications such as online shops and forums.
MySQL Server
The NAS is the most affordable choice as a standalone database server for system integrators. It can be flexibly applied in various deployments such as a database server of another web server in remote site or as an additional backup database server.
Built-in DDNS support
The NAS supports dynamic DNS (DDNS). You can register a unique domain name from a DDNS service provider and assign it to your NAS.
Software expansion via QPKG Center
The QPKG software package platform enables you to maximize the usage of the NAS by installing additional software packages developed by the users and community worldwide. This can be done by simple "download & install" clicking without going through any complicated process.