[email protected] wrote:
We have 6 external 4TB drives on a Win7 computer that has 24gb memory.
No problem at all. Of course this creates 6 separate drives - not sure
about the NAS you are looking at. We find they run as fast as the
internal drive, at least for what we do - primary a backup for all the
computers on our network and 4 cloud servers. We got the drives at
Costco for about $149.95 each. If you don't have 6 USB3 ports you can
use USB2 or get an expansion port device. For backing up, we don't see
a difference in USB2 vs USB3.
Thanks Kam!
I don't have the inside-the-box tech specs, but my guess is that these
video cameras open a file and write to it continuously until it reaches
a certain size, then they start writing over the beginning of the file
in a loop. As long as the starting point byte offset is kept track of,
you'd be able to climb in your "way back" machine and watch video from
whatever camera starting 30 days ago (which is my client's goal.) So,
I'm thinking they'll want one large image, via RAID array.
What makes this dicey is that they want to do this with 18
high-definition video streams. They're using a fairly aggressive
compression algorithm, but thirty days of 24x7 video stream x 18 cameras
is still a lot of data!
Anyway, I put the entire system on its own subnet, both logically and
hardware, so I don't really care what they do with their electricity.
The company owner wants to be able to use it to deal with problems of
theft and employee malfeasance...although in past situations the video
capture has provided zilch benefit. (He had streaming video of an
employee carrying 5 60" TVs out of the warehouse after hours, and the
employee, although terminated, was able to win back pay for the time
between her termination and the trial date, and never paid a penny of
restitution. They even found the pawn shop the TVs were sold to and got
most of the TVs back, albeit damaged pretty bad. Ended up costing him
$50k in lawyer fees and other expenses, while the employee just moved to
another state and even used my client for a reference.)
Mike C
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