Hi

If you are trying to get Xymon running on a Raspberry Pi, as an academic exercise, then go for it, and read no further. If your purpose is to get it running on a small system that can sit in a DC completely unnoticed, with minimal power requirements, then you may want to look at one of these. http://www.globalscaletechnologies.com/t-dreamplugdetails.aspx They run a stripped down Ubuntu, wireless or wired NIC, and can take external storage if your requirements exceed SD capacity.

Regards Vernon

On 24 January 2013 22:25, Galen Johnson <Galen.Johnson at sas.com> wrote:

Compilation would be the bigger issue. Since RPi uses ARM (I have one as well). You can attach and use external storage via USB...or limit yourself to the 32 GB max SD card you can install on.

=G=

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From: xymon-bounces at xymon.com [xymon-bounces at xymon.com] on behalf of Root, Paul [Paul.Root at CenturyLink.com] Sent: Thursday, January 24, 2013 9:15 AM To: 'Nick at Pettefar.com'; 'xymon' Subject: Re: [Xymon] Raspberry Pi Xymon Server

Probably. I have one, but haven't done much with it yet.

You'd need to compile Xymon (and it's dependencies) on the machine.

Disk space for rrd and history would be an issue.

-----Original Message----- From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Nick Pettefar Sent: Thursday, January 24, 2013 6:14 AM To: xymon Subject: [Xymon] Raspberry Pi Xymon Server

Hi, is it possible to use a Raspberry Pi (512MB model running Debian Squeeze) as a Xymon server (only for a limited number of clients)?

Regards,

Nick Pettefar

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Xymon mailing list Xymon at xymon.com http://lists.xymon.com/mailman/listinfo/xymon

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Xymon mailing list Xymon at xymon.com http://lists.xymon.com/mailman/listinfo/xymon

-- "Accept the challenges so that you can feel the exhilaration of victory"

• General George Patton

On the Raspberry Pi, apt-get install xymon seems to do the trick.

I have a 32GB SD card and also an external USB drive on it so plenty of free disk space for any logs.

Nick

On 24 Jan 2013, at 14:15, "Root, Paul" <Paul.Root at CenturyLink.com> wrote:

Probably. I have one, but haven't done much with it yet.

You'd need to compile Xymon (and it's dependencies) on the machine.

Disk space for rrd and history would be an issue.

-----Original Message----- From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Nick Pettefar Sent: Thursday, January 24, 2013 6:14 AM To: xymon Subject: [Xymon] Raspberry Pi Xymon Server

Hi, is it possible to use a Raspberry Pi (512MB model running Debian Squeeze) as a Xymon server (only for a limited number of clients)?

Regards,

Nick Pettefar

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Xymon mailing list Xymon at xymon.com http://lists.xymon.com/mailman/listinfo/xymon

On 12/05/15 16:45, Becker Christian wrote:

Hi,

i know it's an old thread, but....:

I also have a Raspberrypi Model B running Xymon; i compiled version 4.3.17 on it. I have a 2GB USB stick with ext4 mounted as /opt/xymon and Xymon is installed there. The Xymon installation itself is running like a charm, i'm monitoring about 25 devices with it.

But every now and then the filesystem in /opt/xymon seems the get destroyed. This has happened three times now; sometimes a filesystem check does the trick, sometimes not.

My questions (I know this is a Xymon mailing list and not related to the Raspberrypi, but...) -is this because of the Raspberrypi or because of the USB stick (the stick is a "normal" stick, not an especially fast one....) -is an USB stick a good choice for a Xymon setup? Or is a hard disk the better choice?

In my experience (over a dozen RPi's, mainly trying to use them as remote desktop thin clients), I've had a lot of issues with the SD card and writes failing to that, often corrupting the FS. My "solution" recently is to simply use a read only filesystem, which has drastically improved the reliability.

Another factor is in relation to your power supply, and ensuring there is adequate power for both the RPi as well as your USB devices/peripherals. Even a momentary drop in power could crash either the USB drive (crash as in gets "ejected") or the RPi (as in the whole board crashes and you need to reboot.

You could try to disable any sort of write cache for the USB, and enable the ext4 features so the data and metadata are both protected by the journal. Another option would be to use a pair of USB drives, and configure with RAID1, so that any failure from one USB won't cause the complete system to crash (USB drives are generally rather cheap depending on the size required).

When the USB is "destroyed" have you tried checking the kernel logs to see what happened/why? If the RPi crashes at the same time, you could try to enable the serial port and log the kernel messages there, but if this is happening, then I suspect the crash is power related or similar since the USB shouldn't crash the whole system.

Also, don't forget there might be a write limitation on most cheap USB flash drives, and hobbit does a lot of small writes.... If this is the issue, a USB HDD should solve it.

Other than the above suggestions, I don't have a lot more to add, hopefully someone else can offer more.

Let us know if you find any more information....

Regards, Adam

-- Adam Goryachev Website Managers www.websitemanagers.com.au