[plug] Pi talk

William Kenworthy billk at iinet.net.au
Mon Aug 10 15:11:47 AWST 2020 

This brings up an issue with pi's - I have a terrible history with SD
cards going bad on them.  The 5x odroids I have with SD cards (HC2's)
have only had one die - in the same period, the pi3b has had 2 die and
the third is getting very slow (yes its being trim'ed) so its about to
die too.  The older pi's are similarly hard on SD cards, the only one
that's lasted is one in a pi zero W.  The eMMC's have lasted where I use
them.

BillK


On 10/8/20 2:32 pm, Oli Hills wrote:
> It really depends on usage.
>
> 1.  How large does the FS need to be?
>   This depends whether you will need an external disk which on a Pi
> would be USB.  It's possible but personally I wouldn't trust a FS to a
> single USB disk with no backups.
> 2..  How much web traffic are you expecting?
>   If it's anything commercial then run it on a cloud platform not from
> home.
>
> I would offload the Router FW to a Ubiquiti security Gateway, it's a
> personal preference but I like my internet access to not be reliant on
> hardware that's used for anything else.
>
> Once done you can happily run networking components such as DHCP / DNS
> on the Pi Including Pi hole alongside a low traffic webserver and
> other smaller services.  I like to treat Pi's and their disks as
> destroyable, so would configure it with Ansible and run all the
> services in docker.  That way if you ever need to recreate it you can
> pull a repo and hit the go button.
>
> Oli
>
>
> On Mon, 10 Aug 2020, at 14:03, Jason Nicholls wrote:
>> If not married to the PI then I'd also suggest looking at 2nd hand
>> mini PCs.
>>
>> I picked up a Dell Optiplex 9020m i5 4590t with 8GB RAM and 128GB SDD
>> (internal) for $227. This is a low power unit (idles ~10W) and way
>> more powerful than a PI with proper full speed GigE and USB3 if you
>> want to hook up external disks. Nice thing too is you can
>> expand/upgrade it with more ram or replace the internal disk etc...
>> It's also tiny, about the same size as my NBN router!
>>
>> If you consider the cost of a pi4  4GB + power + case, then I think
>> this is competitive - esp. if you were thinking of getting multiple PIs
>>
>> On Mon, Aug 10, 2020 at 1:55 PM Benjamin <zorlin at gmail.com
>> <mailto:zorlin at gmail.com>> wrote:
>>
>>     Odroid stuff is certainly worth looking at. My "Elastic NAS"
>>     project is built on 4x ODROID HC2 units running Ubuntu and MooseFS...
>>     - b
>>
>>     On Mon, 10 Aug 2020, 13:53 William Kenworthy, <billk at iinet.net.au
>>     <mailto:billk at iinet.net.au>> wrote:
>>
>>         Or pay a small amount more and use an odroid N2 (6 arm cores,
>>         4 G ram) and run the services via LXC.  I have a dav server,
>>         an asterisk PABX, internet facing web server, slave dns,
>>         email and a radicale calendar server plus a buildhost all in
>>         lxc on a single N2.  Everything including asterisk runs well
>>         on a gentoo-sources kernel and a re-purposed Gentoo aarch64
>>         raspberry pi user-land from my old pi 3B.  An Odroid c4 will
>>         also work - note both of these have USB3 if you want to run
>>         extra usb network adaptors.  The n2 is running a bridge for
>>         LXC to the VLAN segmented networks while the C4 I have
>>         (odroid 4.14 kernel, gentoo aarch64 userland) is using 2
>>         bridged USB 3 WiFi adaptors to vlans all without problems.  A
>>         major performance boost (at least 3x over an SD card in my
>>         tests) is had using the odroid eMMC storage, though the pi's
>>         have a sata hat available - I have tried using usb storage
>>         and usb networking together on both pies and odroids and its
>>         a serious no-no :) - corruption and really bad performance
>>         when busy).  The standard odroid OS is ubuntu and it can
>>         apparently also use raspian.
>>
>>         Any pi less than a 4 will suffer from poor network
>>         performance (it all goes through an internal, under-powered
>>         USB2 hub), though I have used pi 1B's for all the above
>>         services in the past.  Going on my experience, a pi less than
>>         a 4 will do ok for a not very busy home server but wont do
>>         well for routing and a pi 4 should be better at networking
>>         whereas the more powerful odroid units will do it better,
>>         perhaps to small enterprise level with the right storage. 
>>         see https://www.hardkernel.com/shop/odroid-c4/ (the page for
>>         the older n2 i have uses a pi3 for the comparison, the newer
>>         N2+ is here
>>         https://www.hardkernel.com/shop/odroid-n2-with-4gbyte-ram-2/.)
>>
>>         BillK
>>
>>
>>         On 10/8/20 12:58 pm, Russell Pereira wrote:
>>>         Hey pluggers,
>>>
>>>         Just wondering what pi you recommend for Web server, vpn
>>>         server, file server, router and a firewall.
>>>
>>>         Was thinking seperate pies for each one and was wondering
>>>         which model(s) would be best. I have a esberrybpi 3 with 1gb
>>>         ram but figure it is a bit under powered.
>>>
>>>         Thanks 
>>>         Russ
>>>
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>>     _______________________________________________
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>>
>>
>> -- 
>> Jason Nicholls
>> jason at mindsocket.com.au <mailto:jason at mindsocket.com.au>
>> 0430 314 857
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>
>
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