Performance
The FlexNAS XT delivers 25% higher performance and throughput than the FlexNAS XR. Designed for small organizations, departments or multiple workgroups where large amounts of general file data (NAS) needs to be stored on the network. The FlexNAS XT will deliver under demanding conditions.
Capacity
The FlexNAS XT is designed to store general data files. A single system holds from 320 MB up to 8.0 TB of data (240GB - 6TB in RAID5). The Logical Extend feature listed below allows up to eleven volumes to be logically connected and managed as one, making the system scalable to 44 TB of storage capacity (4.0 TB per system).
Management Features
Installation
A static TCP/IP address is initially set via front panel display. Alternately, dynamic IP address may be set using DHCP, ARP, or a Windows software utility. Further network and operational settings are configured using a web-based management interface by entering the FlexNAS's IP address into a web browser.
Platform Independent Hardware Monitoring
System status may be monitored using multiple notification methods including: email alerts, audible alarm, LCD console messages, web reminders and SNMP traps. Environmental monitoring includes: CPU/System temperature, CPU/System Voltage, CPU fan status.
Software Updates
Flash memory allows remote software updates over the network. Additional features can be added by simply entering a license key
Display and Controls
The FlexNAS XT includes advanced external display and controls including:
- A back-lit LCD display with push-buttons for IP setting and system status/event indication
- Built-in alarm for system status events and warnings
- Built-in thermal sensor for temperature monitoring
- Dual-color LEDs for indicating Power/Fault, LAN activity, and LAN link/speed, device activity.
Language Support
Multi-lingual web interface currently supports:
- English, "Traditional Chinese", "Simple Chinese", Japanese, Hebrew and Arabic web pages
- English, Western European, Arabic and Hebrew, CJK DBCS, Unicode Code-pages
Storage
Reliability and Management
The FlexNAS XT provides a number of advanced storage features for the protection and management of online data. These include:
- Advanced bad sector recovery and re-mapping
- Ability to safely mount/unmount volumes on line.
- Manual and scheduled disk-scanning on selected hard disks or RAID groups
- Device log provides detailed information (disk sector, error on read or write) on disk I/O
- Support S.M.A.R.T. hard disk monitoring
RAID
Some FlexNAS XT models offer the ability to configure the serverΉs local storage in a RAID array. In the unlikely event of a hard drive failure, data is protected and the manpower invested in building your digital library is preserved. RAID features include:
- Integrated Hardware RAID controller
- RAID 0 - disk striping
- RAID 1 - mirroring
- RAID 5 - data & parity striping
- Supports 4 concurrent RAID sets
- Global Hot Spare
- Intelligent Hot-Swappable drive modules
- New drives automatically initialized as hot spares
- Cross-platform Journaling File System
- Expand RAID 5 volume size on the fly
- 4 Terabyte maximum volume size
- User disk/folder quotas supported
The FlexNAS XT supports a Global Hot Spare disk drive. In the unlikely event of a disk drive failure, the hot-spare will automatically be swapped into the RAID array replacing the defective drive. The system will automatically rebuild the RAID array on the new drive. This all happens without user intervention. The administrator is notified in the method of their choice.
Another standard feature of the FlexNAS XT is the hot-swap disk drive module. This allows the disk drives to be removed and replaced without having to reboot the system.
Clustering (SmartExtend Feature)
One of FlexNAS's next-generation features is the ability to logically group multiple physical servers into a single storage resource. Clients access this storage cluster as if it were a single large server. This feature makes it easy to add storage capacity on demand. Clustering requires a master (initiator) FlexNAS and multiple target systems that are accessed through it. A target is like a network attached RAID. All user accounts, security settings, quota controls and backups are managed centrally thought the initiator system. (FlexNAS XT servers can function as initiator or target. If more than three additional modules are contemplated, the Initiator should be a FlexNAS XL. The Initiator requires the SmartExtend license enabled)
- Add capacity on demand
- Connects using IP technology
- Each FlexNAS initiator can connect up to 10 target volumes.
- Each target can provide up to 4.0TB of capacity
- 44 terabytes of storage capacity available on a single logical server
- Manage security centrally
- Unified name space only one server name for easy client access
Storage Management Software
A Windows-based utility is included for FlexNAS XT administration. The administrator might use this as an alternate to the web browser admin interface. Administration utility software features include:
- Wizard style interface
- Win95/98/ME/NT/2000/XP compatible
- Configures ServStation XR servers for the first-time setup or quick setup.
- Discovers and performs administration functions to all ServStation XR servers attached to the LAN.
- Performs hard drive initialization
- Allows volume deletion
- Performs shutdowns, restarts, and resets
- Explorer-like user interface with user-friendly wizards for remote CD mirroring.
- Remotely uploads CDs or DVDs to ServStation XR from a local drive
- Creates new CD image from existing CD or by dragging & dropping separate individual folders and files.
- Multiple-destination remote mirroring - allows users to assign different destination servers when building CD images.
- Burn CD Images to CD-R or DVD-R after upload
- Upload CD or DVD images to be burned immediately or by pre-defined schedule
- Monitors all on-going and scheduled tasks.
Data Protection
Backup
FlexNAS XT includes local tape backup/restore software (drive optional) that supports full/incremental backups of selected folders, flexible backup schedules and original/alternative restoration. It also features comprehensive backup/restore progress information and detailed summary logs.
Tape backup has the option to include ACL security setting when backing up and restoring data. System settings such as user database and quota settings and network shares may also be backed up. Also provides for File-and folder-level selection for tape restoration
Optional CD/DVD writer can be used for backup. CD writer backup features include:
- Select multiple source folders for backup
- Estimate total file size of the folders selected for backup
- Move selected files to writer buffer internally and automatically.
- Supports spanning multiple discs when selected files exceed the size of a single CD/DVD disc.
- Supports burning across multiple CDs using two CD writers in sequence.
- Supports the writing of DVD+R/RW ISO, DVD-R/RW ISO and ISO-9660 level 2 CD file-systems
The data stored in NAS can be backed up/restored from/to NAS over Windows network using Veritas BackupExec and NetBackup, Legato Networker and Microsoft Backup without losing the native security settings.
Remote Data Synchronization
The FlexNAS XT includes built-in synchronization support for server-to-server mirroring, distribution, and tapeless backup. The synchronization tasks run over TCP/IP using SSH to ensure secure communications. Synchronization compresses the differential blocks from changed files and can be configured to use customizable bandwidth to reduce the utilization of the scarce network bandwidth. Replicated data retains the same (file/folder-level security files/folder.
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Mirroring:
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Creates an exact duplicate copy of data from a share or folder on one FlexNAS to another FlexNAS. (FlexNAS XT servers can function as either Mirror servers or clients.)
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Distribution:
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Replicates an exact duplicate copy of data from a share or folder on a master FlexNAS to up-to eight other target FlexNASs. (FlexNAS XT servers can function as a master distribution server or distribution targets.)
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Tapeless Backup/Restore:
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Performs a server-to-server backup. Two systems are required, one as the backup server, others as backup clients. The backup server makes and keeps backups of client data. Backup version control is similar to the GFS (Godfather-Father-Son) tape rotation scheme commonly used on tape backups. When a new backup version is created, it checks and deletes obsolete backups automatically according to predefined rules. (FlexNAS XT servers can function as tapeless backup server or clients.)
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Snapshot
Snapshots are point-in-time copies of the file-system. When creating a snapshot, the file-system is momentarily frozen and a record of all changes is created. Several terabytes of data ban be backed up in less than a second. Since files are not modified during snapshot creation, data integrity is maintained.
Because of their speed, Snapshots solve the problems of long backup windows and open files commonly associated with tape backup. Snapshot keeps track of file changes in blocks, so even frequent backups can require little or disk space.
Backed up data is maintained online and clients can access previous versions of their files through special read-only snap folders.
Anti-Virus
The FlexNAS XT supports integrated virus protection. Virus scanning can be configured to occur in real-time, or at scheduled intervals. Updated virus pattern files can be automatically downloaded and installed if FlexNAS has Internet access.
- Real-time, scheduled, or disable virus scanning
- Automatic virus pattern updates over internet or via file upload
- Alert when virus pattern out of date
- Alert when virus detected
- Quarantine infected files
- Exclude/include files to scan using extensions
- Scans compressed files
Maximum Throughput
250Mbps
| Storage |
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| Hard Drives: |
Up to 8 SATA hard drives 8 TB total capacity |
| Hard Drive Sizes: |
80, 160, 250, 320, 400, 500, 750 or 1,000 gb SATA drives |
| Optical Drives: |
0 or 1 DVD ROM or DVD-R/RW |
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| Models |
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Model
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Enclosure
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No. Hard
Drives
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Hard
Drive Size
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Total
Storage
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RAID 5
Storage
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| FlexNAS XT 4000 |
Tower / Rack |
4 |
80 GB |
320 GB |
240 GB
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| FlexNAS XT 5000 |
Tower / Rack |
4 |
160 GB |
640 GB |
480 GB
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| FlexNAS XT 5500 |
Tower / Rack |
4 |
250 GB |
1 TB |
750 GB
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| FlexNAS XT 6000 |
Tower / Rack |
4 |
320 GB |
1.3 TB |
960 GB
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| FlexNAS XT 6500 |
Tower / Rack |
4 |
400 GB |
1.6 TB |
1.2 TB
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| FlexNAS XT 7000 |
Tower / Rack |
4 |
500 GB |
2.0 TB |
1.5 TB
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| FlexNAS XT 7500 |
Tower / Rack |
4 |
750 GB |
3.0 TB |
2.25 TB
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| FlexNAS XT 7800 |
Tower / Rack |
4 |
1 TB |
4 TB |
3 TB
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| FlexNAS XT 8200 |
Tower / Rack |
8 |
250 GB |
2 TB |
1.75 TB
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| FlexNAS XT 8300 |
Tower / Rack |
8 |
320 GB |
2.56 TB |
2.24 GB
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| FlexNAS XT 8400 |
Tower / Rack |
8 |
400 GB |
3.2 TB |
2.4 TB
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| FlexNAS XT 8500 |
Tower / Rack |
8 |
500 GB |
4.0 TB |
3.5 TB
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| FlexNAS XT 8700 |
Tower / Rack |
8 |
750 GB |
6.0 TB |
4.0 TB
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| FlexNAS XT 8900 |
Tower / Rack |
8 |
1 TB |
8.0 TB |
6.0 TB
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Options
- Dual Power Supply (8 drive systems only)
| Enclosures |
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| Configuration
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Dimensions (HxWxD)
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Power Supply
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Shipping Weight
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| 4 Drive Tower |
17.5 x 7.5 x 18.0 |
Single 400W |
35 to 45 pounds |
| 4 Drive 4U Rack |
7.0 x 19.0 x 19.0 |
Single 400W |
50 to 80 pounds |
| 8 Drive Tower |
19.0 x 7.0 x 19.0 |
Single 400W /
Dual 330W
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35 to 45 pounds |
| 8 Drive 4U Rack |
7.0 x 19.0 x 19.0 |
Single 400W /
Dual 330W
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50 to 80 pounds |
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Network Operating Systems
Windows 95/98/ME/XP/NT/2000/2003/2007/Vista
UNIX/Linux
Network Protocols
TCP/IP
HTTP, CIFS/SMB, NFS v3, FTP
BOOTP, RARP, DHCP, DNS; WINS; SMTP, SNMP; NTP; SSL
Dual Network Interface
The FlexNAS features dual 10/100/1000Mbps Ethernet interfaces that can be configured in any of four methods:
| Stand Alone: |
Both adapters simultaneously receive and transmit data as a two logical channels. Ports can be connected to one or two different subnets.
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| Fault Tolerance: |
The second port automatically takes over on upon any failure of the primary connection (cable, adapter or port). If the connection to the primary adapter is restored, control passes automatically back to the primary adapter.
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| Load Balancing: |
If data flow increases to one network connection, traffic is automatically redistributed to ensure optimal network performance.
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| Link Aggregation: |
Both adapters simultaneously receive and transmit data as a single logical channel. Includes fault tolerance and load balancing. This feature requires a switch that supports Intel Link Aggregation, Cisco FEC, or IEEE 802.3ad (static-mode configuration only).
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Drive Performance Hard Drive Cache:
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up to 48MB/sec with 8.5ms access
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CD-ROM Media:
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up to 7,200KB/sec with 80ms access (48X)
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DVD-ROM Media:
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up to 21,600KB/sec with 95ms access (16X)
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Network Interface
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Dual 10/100/1000BaseT auto-sensing Ethernet RJ-45 connector
Optional third 10/100/1000 Gigabit Copper or Fiber Optic
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UPS
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RS-232 (DB-9) serial port for attaching to APC SmartUPS or PPC UPS to provide controlled shutdown in event of a power failure
Network UPS support (RFC-1628) to monitor power status and power events
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Environmental
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Temperature: 40-105° F (5-40° C)
Humidity: 20-80% RHG, non-condensing
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US Warranty
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1 year parts and labor depot warranty. Extended warranty and service plans available.
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