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Internal Details

Figure 3 shows the ix4's main board, which is based on Marvell's 88F6281 "Kirkwood" clocked at 1.2 GHz supported by 512 MB of soldered-on DDR2 RAM and 64 MB of flash. Two Marvell 88E81116Rs provide the dual Gigabit Ethernet ports and a GL850A USB 2.0 hub supports the three ports. SATA II interface for the four drives is handled by a Marvell 88E6121 controller.

The 8 TB version that Iomega shipped for review came with four Seagate Barracuda LP 2 TB (ST32000542AS) drives that are internall formatted with the XFS file system.

ix4-200d board

Figure 3: ix4-200d board

Figure 4 shows the drive bay on the left side of the system, with the drives mounted in plastic carriers. Although the drives are not hot-swappable, they are easily reached by loosening two thumbscrews on the back and sliding off the cover.

ix4-200d drive bay

Figure 4: ix4-200d drive bay

Features

As noted earlier, the ix4 takes the earlier ix2's feature set and builds on it, adding a few more features to better appeal to business users. Here's a summary of the ix4's key features, with the ix4's new features in italics.

  • Network file sharing via SMB/CIFS, NFS, AFP
  • Single JBOD, RAID 5, 10 volume
  • XFS drive formats
  • Volume space can be allocated among SMB/NFS/AFP shares and iSCSI targets
  • FTP
  • HTTP / HTTPs file and admin access
  • Joins NT Domain / Active Directories for account information
  • VMware Certified: HCL certified NAS (NFS) and iSCSI storage for VMware
  • User quotas
  • Email alerts
  • Logging
  • Network Backup: Schedulable (smallest interval is one day) to / from rsync targets and SMB/CIFS shares
  • Unlimited Retrospect Backup clients for Windows and Mac OS
  • Supports Apple Time Machine backup
  • Auto file copy from PTP-enabled digital cameras
  • File upload via Bluetooth
  • Secure Web-based remote access (locally hosted)
  • USB printer serving
  • UPS shutdown synchronization via USB
  • Recording and viewing of up to five Axis IP cameras
  • UPnP AV / DLNA media server (Twonky Media)
  • Photo slideshow (uses Cooliris)
  • iTunes server
  • BitTorrent downloader

This is a useful feature set, with a balance of business and consumer features. But there are a few things that are missing that you might not notice:

  • Only a single volume is configurable, and you can't configure a three-drive RAID 5 volume and set the fourth drive as a spare. RAID 0 and 1 modes aren't supported and you can't migrate between RAID levels or expand the RAID volumes while they are online.
  • The FTP server doesn't have a secure mode.
  • You can limit access to shares by user and/or group. But you can't control access by service. So you can't shut off FTP access to certain shares, for example
  • The remote access service doesn't use a hosted portal, but instead requires you to forward the proper ports to the ix4.
    A basic 12 month subscription to TZO's dynamic DNS service is bundled, but you'll have to pay after that or right away if you want to use your own domain name. (The 12 month bundled service is only for a limited set of domains such as yourname.IomegaLink.com or yourname.MyIomega.com).

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