Thecus N7700 Pro for Image Storage

I have used many NAS (network attached storage) devices over the years but I’m very pleased with the latest one to join the network here at Copyrightimage.Like many of my clients I have a need to keep an archive of many thousands of images available for instant use and access. The major differences between this device and the more usual NAS devices are speed and capacity.

The N7700 Pro I have here is fitted with 7 x 2TB hard disks in RAID 5 formation which gives a single volume of 10.9TB of disk space, this means that I can hold large collections of images in one place which aids indexing and workflow.
The speed comes from its dual core processor which drives the controller and gigabit Ethernet to its full speed and so I can get real world transfer figures of 65mb/sec writes and even faster reads. This is over twice the speed of a USB2 drive connected directly to a host computer so its very impressive.

When dealing with large amounts of high res images this device would seem to be able to delivery speedy storage with the safety net of RAID 5 which means that if a disk fails I just need to swap it out for a new one (the image above shows the access door closed (left) and open (right) each disk is in a separate caddy.

The power supply to the device is a single point of failure however so its important I have at least one copy of every file on the device backed up somewhere else, as always, redundancy is the safety net.

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New Terrastations

Buffalo have added some new Network Attached Storage devices (NAS) to their range. They will be available in the UK from Febuary. I have seen a price of £577 + VAT for the 1TB version.

We like these (and earlier) drives because they can be configured in a RAID 5 array, a great place to store valuable images in some safety. The capacity of the drive is lowered when set to RAID 5 but they can still store approx 12,000 60MB files which works out at about 5p per image (The price of a GePe slidemount 15 years ago!).
This new version has much easier access to swap the drives out if one fails. Im not certain as yet what the real life file transfer rate is but I have a feeling that like a lot of other similar devices they are not very quick.

These drives are suitable for individual photographers and small photolibraries. Larger organisations may need something bigger and faster. Contact me if you have any queries.

Buffalo website

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