Nagios XI hardware sizing

[michaelli]

Hi,

I will plan to migrate our BB monitoring system to Nagios XI enterprise edition. But we are now concern the hardware sizing.

From nagios FAQ, 4 CPU core can monitor >2500 service. As we have 350 hosts (unix + windows server). Each host will monitor 40 services.

It is possible use a single server (12 cores CPU and 32G RAM) to monitor all 300 hosts.

At this moment, I will buy 1 nagiosxi license (1 production, 1 production standby and 1 development).

Thanks

[Box293]

If you're expecting to monitor more in the future I would recommend 48-64 GB RAM.

Also, what sort of disks will you have? I recommend SSD's. Disks are often overlooked in a Nagios deployment.

With that size deployment you should read through the following guides on improving performance:

http://assets.nagios.com/downloads/nagi ... rmance.pdf

http://assets.nagios.com/downloads/nagi ... giosXI.pdf

http://assets.nagios.com/downloads/nagi ... ios_XI.pdf

http://assets.nagios.com/downloads/nagi ... Server.pdf

[michaelli]

Thanks for your reply and all information are very useful for my project.

[michaelli]

Hi Box293,

I target to use 600GB SAS 15K rpm Hard disk with hardware RAID-1.

[Box293]

we have 350 hosts (unix + windows server). Each host will monitor 40 services.

350 x 40 = 14,000 services. That will create a lot of disk I/O.

I target to use 600GB SAS 15K rpm Hard disk with hardware RAID-1.

If SSD's are too expensive I recommend 4 x 15K drives in a RAID-10. You get the speed of RAID 0 but the redunancy of RAID1.

However I really really really recommend SSD's (two in a RAID-1).