Some other NVR options

Other options I did some quick research on that people have mentioned to look at if Windows is a deal breaker for you to run Blue Iris.

Shinobi NVR software.

Facebook page

Here is their feature compare to ZoneMinder. Platform independent since written in JavaScript. Sounds like there are issues with libraries need to make it work under Linux.

Synology Surveillance Station

The licensing cost of ~$50 after the first 2 is going to be the deal breaker for most. Add to that a NAS just is not built for video display so you are left with browser display A quick Google would seem to indicate does not stand up performance wise either.

Bluecherry NVR vs others

BlueCherry is another multi-camera Linux NVR. 

Here is a great 45 minute overview and demonstration. Below is mainly just the stuff not really covered in it.

You can download their client and connect to their demo server to try it for yourself. Note only 4 of the demo cameras would connect for me and one is playing a animated video.

Interface beats Zoneminder by a mile.

Their feature compare with Zoneminder is here. kerberos.io does beat them on some features like heat maps but over all I'd say the Bluecherry interface is better than kerberos.io too.

Does most of what Blue Iris does. Main diffs with Blue Iris

It costs a lot more.

To dup my current 38 cam set up would be $650 to 675 vs $135 for Blue Iris. There is a 30 day free trail though.

Generally the interface is not as polished as Blue Iris though way ahead of Zoneminder

Plays back at up to 128x where Blue Iris does up to 256X

Probably not that big of a deal unless you are having to find when thing X happened in several hours of video.

Also not seeing many automation options. 

For example with Blue Iris I can trigger virtual devices in my home automation system based on motion and loss of signal. Here the only option appears to be email. This is what the options are with Blue Iris for motion or loss of signal triggering.

Motion detection seems thin

Compare this Bluecherry screen

to Blue Iris' these screens

Zoom seems to stay centered on image instead of cursor location like in Blue Iris

This means if the thing you want to zoom in on is off center, zoom is basically useless. Also it is a simple +- button system of step instead of the much smoother Blue Iris method of put your cursor over the subject and use the scroll wheel to zoom in and out.

Loads

Not sure about loads since I have not set up a sever to test on matching hardware. The client did not seem to load my PC much at all though all I could pull from their server appeared to be 4 streams around 720p.

Zoneminder eval as Blue Iris replacement

Intro

After getting feed up with Windows 10 issues I'm checking out Zoneminder. First things first start with a clean CentOS 7 install since I ran into all kinds of conflicts trying to install on boxes with other things already running. xrdp for instance will keep you from installing vlc which Zoneminder needs.

Update: if you just want to see a quick demo video of Zoneminder, iSpy and Blue Iris here a great one another guy did. And if you are thinking Synology Surveillance Station as an alternative you might want to watch the video Is the Synology Surveillance Station better than Blue Iris?

Installing base CentOS 7

Installing CentOS 7 with Gnome desktop

These instructions are great other than instead of minimal configuration, select Gnome desktop and select all sub packages, otherwise follow the instructions in the link

After it reboots accept the EULA and take defaults for basic config. Check for and install any outstanding updates.

The rest of the set up can be done remotely as root logged in via ssh

Create user with sudo access

adduser username

passwd username

If system uses the simple wheel group membership you can use

usermod -aG wheel username

Otherwise edit /etc/sudoers to get granular.

To avoid conflicts DO NOT install anything else before Zoneminder!

Install Zoneminder

Follow the instructions from here.

wget http://zmrepo.zoneminder.com/el/7/x86_64/zmrepo-7-9.el7.centos.noarch.rpm
sudo yum install --nogpgcheck zmrepo-7-9.el7.centos.noarch.rpm
sudo yum install zoneminder
less /usr/share/doc/zoneminder-*/README.Redhat7

The last line above is more instructions. Follow them with these caveats:
sudo dnf install mariadb-server should be
sudo yum install mariadb-server
Note it is important to install mariadb-server and NOT mysqld or try and use a remote db since this seems to currently keep Zomeminder from starting.
Note when you see something like
mysql -uroot -p -e "grant all on zm.* to \
                        'zmuser'@localhost identified by 'zmpass';"
It is better to enter as
mysql -uroot -p -e "grant all on zm.* to 'zmuser'@localhost identified by 'zmpass';"
since \ seems to get lost sometimes when copy pasting into ssh sessions.

At sudo systemctl start zoneminder is where you know if things worked.

Note if you want to be able to access Zoneminder other than from a browser on the box itself also run the commands
sudo firewall-cmd --permanent --zone=public --add-port=80/tcp
sudo firewall-cmd --permanent --zone=public --add-port=443/tcp
sudo firewall-cmd --reload

You can now go to the console via your browser. If you are on the box you can use the IP address of 127.0.0.1 otherwise substitute your server's IP address for 10.10.2.191 in this URL
https://10.10.2.191/zm/

Setting up cameras

For details check out the Getting Started section of the user guide. Note the set up section appears to be out of date as some of the tabs had different or more options when I setup a camera for this test.
Setup is not nearly as simple as Blue Iris which generally just figures it out from an IP address and a login. Since you will probably end up Googling what to use to make it work with your camera I won't go into steps here.

First impressions

I got Zoneminder to work by spinning up a new copy of CentOS 7 on one of my test PCs.

The broke bit I saw on my first try seems to be with it not seeing the DB because it is looking for an instance of Maria DB local (remote is also supposed to work) and does not see MySQL local either as equivalent.  Note they are functionally equiv and the OS saw the MySQL DB I had installed as newer version of Maria. There were also other software conflicts on other servers I tried that had other things installed like remote desktop for example which needed to be remove just to get it to install.

The interface is no where near as finished or as easy to use as Blue Iris. Plan on looking up what to put into config boxes and playing with options to get them to work. For example to configure the video stream on ZomeMinder per their Wiki looks like this

Note the Probe and ONVIF links are supposed to yield a list of config suggestions similar to what Blue Iris' inspect does but it returned nothing detected for the Amcrest. The presets option lists about 40 low resolution cameras. Amcrest was not even listed in the presets despite being on their Wiki. By comparison Blue Iris has more than 40 brands of cameras listed, many with many models.

The equivalent window on Blue Iris looks like this

Generic above was setup automatically by inspect though you could also select Amcrest. The configuration by selecting the brand and model looks quite different but seems to work equally well.

Load wise a single Amcrest 2K cam on Zoneminder appears to max out a Core 2.

Note that is streaming the one cam back to a browser but it was still nailed after stopping that stream.

You can see the spike where I logged back in via remote desktop to see the load and how it changed the load on the box very little.

For comparison that same camera plus 12 others are recording 24/7 with motion detection on the i7 server now with an average core load of 46%.

Granted the i7 is faster but not that much faster. About 3 times faster according to this.

Finally for me I'm looking for something that lets me have a monitor (3 actually) showing the cams so I can just glance up when I get an alert or hear the dogs barking that something is happening.

The Zoneminder interface seems to be oriented to record now and watch later. That is fine if that is all you need but if you want to be able actively monitor multiple cams it won't cut it.

Update

After trying:

• moving the swap file to another hard drive
• running hardware diagnostics 
• Windows troubleshooters
• trying fixes I found on line
• reinstalling Blur Iris
• and even swapping out the graphics card, since the symptoms were the Blue Iris console locking up and Windows programs not updating bits of the screen  

I ended up restoring from the restore disks which put the system back to Windows 7. After installing upgrades and all the software (Blue Iris, apcupsd, cygwin and ODrive) it is working great again. Kind of confirms it was a Windows 10 issue.