Advantages of Hardware for Security Systems – TechMikeNY



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Security System Servers. Advantages, Specs, and the Software & Hardware You'll Need


We often have customers inquiring about the specs they need to build a security system server for their home or business office. We thought it would be helpful to summarize the advantages and the software and hardware you need to build a security system with a refurbished server.

Advantages of Having a Physical Box Over a Security Cloud Subscription

With the proliferation of The Cloud, there are several security systems services that manage and store the footage remotely. While these remote systems certainly have their advantages of convenience, there are some significant caveats to be aware of:

  • There are compounding subscription costs. There is a reason the subscription model is now the pricing model of choice for so many software products – those subscription fees add up! While there is an upfront cost to set up your security server (and that cost is significantly smaller if you go the refurbished route), there are no perpetual recurring costs once you are up and running.
  • Many security camera Cloud services have hidden or surprise fees. Want to download a particular clip? Sure, pay up!
  • There is a greater risk of your footage being exposed. Unfortunately, hacks are part of our modern digital society – and cameras are an especially ripe target for hackers. Cloud providers store your footage on their servers. If their servers get hacked, your home footage is compromised (which could be disturbing when you consider your camera was recording your living room!). 

The overwhelming advantages of housing your security system server are cost, security, and control.

What You'll Need: Software & Hardware 

Software - Video Management Software (VDS)

Your security server will require specific software known as Video Management Software (or VDS). VDS allows you to manage the cameras, record and retrieve video, and monitor alarms. There are several tools in the marketplace – which one is right for you depends on your needs. Some considerations are the number of cameras in your system and your budget (some have pricing tiers that depend on how many cameras you use, your need for video editing, etc.).

Hardware – Network Switch & Cameras

In addition to the server (more on that below!), you'll need a network switch with adequate speed for transferring video (this is especially true if you are looking to have higher resolution footage). If you plan to use wired cameras, you'll also want to make sure the switch is PoE (Power over Ethernet). PoE will allow the cameras to be powered through its network connection without needing an additional, dedicated power source.

Which cameras you decide on depend on several factors:

  • Indoor vs. Outdoor. Outdoor cameras are on the pricier side due to their weather-resistant casing.
  • Wired vs. Wireless. Wired cameras (see the aforementioned PoE) can be powered through the network cable and never need new batteries. Wireless cameras can be much easier to install since you don't have to worry about running wires. However, you have to consider replacing the batteries (some outdoor cameras have the clever design of coming with solar panels that power the camera – just make sure it's in the sunlight!). You'll also need a wireless access point to connect the wireless cameras to your LAN.
  • What features are important to you? Night vision? Zoom? Motion-detection? Audio-capable? Give it some thought about what exactly you want the cameras, and system, to be capable of before you pull the trigger.


Now we get to the heart of your security system. Note: this server would be ideal for a seven-camera system, but you could adjust the specs accordingly depending on your requirements.

A quick rundown:

  • Processors. Speed matters more than cores for video.  
  • RAM. 64GB of RAM should be sufficient. If you plan to use cameras that record in 1080P or above, you may want to increase the RAM.
  • Storage. 6TB of storage should be sufficient (although with a RAID10 configuration, this total volume would be 3TB; see below). You can always increase (or decrease) the storage depending on the quality of the video, i.e., how long you want to store the footage and the number of cameras in your system. We've selected SAS drives due to their lower MTBF and 12gbps transfer speeds.
  • We've selected Dual Power Supplies for redundancy and a RAID controller with a higher cache for handling video footage. As for RAID, we would suggest RAID10 for speed and mirroring.

Final Thoughts 

While there are Cloud solutions and DVR boxes out there, a refurbished server gives you tremendous flexibility in creating the exact specs you need for a security system at an affordable price while maintaining control.

Do you have more questions on building and setting up a server for a security system? Shoot us an email at, and one of our reps will happily work with you!


  • This blogpost on Security System Servers is a goldmine of information! The detailed exploration of advantages, specs, and the essential software and hardware requirements provides a clear roadmap for those navigating the realm of security technology. It’s a must-read for anyone considering or upgrading their security system servers. Kudos to the author for breaking down the complexities and offering a comprehensive guide!

  • very informative post

  • Thanks for reaching out, Dr. Manweiler, and great question. Unfortunately, OS Support and options for COAX DVR cards are very minimal. That said, there are several analog camera to IP camera converters on the market. A couple of caveats to keep in mind: some of the universal ones don’t work as well across all models, and if you can find one specifically made by the manufacturer of the analog camera you already have, go with that. Also, these converters can be expensive – you may have to do a cost-benefit analysis to see if the cost of the converters exceeds the cost of just buying a new round of digital cameras. I would start with a Google search, “convert analog camera to IP camera.” A couple of product options and literature look like a good place to start. Thanks again, and we hope this helps!

  • Interesting configuration although the issue that I have trouble dealing with is that I have a good number (10) of old style analog (coax) cameras which work great but for a configuration such as you have put together to work for me I would have to have some type of interface that would accept at least 10 of these hard wired cameras but still provide the capability to allow me to have 8 (currently) IP cameras. Note that almost all of my cameras are at least 2k and most are 4k.

    Any thoughts on hardware that can be added to the server you spec’ed out above that could also handle analog cameras?



    Jerry W. Manweiler, Ph.D.
  • Hi Michael. Thanks for the comment below and the feedback on the storage needed. If you increase the drives on our build to 1 TB, as you suggest, that will give you a total of 10 TB (for only an additional $5 per drive as of this writing). You could even add 2TB SAS drives – although the price is a big jump. If more storage is required, we have the R720, R730 servers with 8 to 12 3.5" drive bays where we can install 4TB, 6TB, 8TB and 10TB drives. The WD storage calculator is a great tool. Thanks for sharing.
    As for WD Purple Drives, yes, they are specifically designed for surveillance storage. We don’t usually get them in our refurbishing pipeline, so we recommended SAS (Enterprise) drives as they are built for very high read & write thresholds. (PS, our return rate on hard drives is <1%). Thanks again for this comment – feedback like this helps us make our blog an excellent resource for our customers!


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