Hello,
Thanks for all replies! The Banana Pi could work. The built in SATA-power
in Banana Pi can power a 2.5" SATA disk. Cool. (Not 3.5" SATA since that
seem to require 12 V too.)
I found this post from Vess Bakalov about the same subject:
http://millibit.blogspot.se/2015/01/ceph-pi-adding-osd-and-more-performance.html
For PoE I have only found Intel Galileo Gen 2 or RouterBOARD RB450G which
are too slow and/or miss IO-expansion. (But good for signage/Xibo maybe!)
I found two boxes from Quanta and SuperMicro with single socket Xeon or
with Intel Atom (Avaton) that might be quite ok. I was only aware of the
dual-Xeons before.
http://www.quantaqct.com/Product/Servers/Rackmount-Servers/STRATOS-S100-L11SL-p151c77c70c83
http://www.supermicro.nl/products/system/1U/5018/SSG-5018A-AR12L.cfm
Kind regards,
Jerker Nyberg
On Thu, 9 Apr 2015, Quentin Hartman wrote:
I'm skeptical about how well this would work, but a Banana Pi might be a
place to start. Like a raspberry pi, but it has a SATA connector:
http://www.bananapi.org/
On Thu, Apr 9, 2015 at 3:18 AM, Jerker Nyberg <jerker@xxxxxxxxxxxx> wrote:
Hello ceph users,
Is anyone running any low powered single disk nodes with Ceph now? Calxeda
seems to be no more according to Wikipedia. I do not think HP moonshot is
what I am looking for - I want stand-alone nodes, not server cartridges
integrated into server chassis. And I do not want to be locked to a single
vendor.
I was playing with Raspberry Pi 2 for signage when I thought of my old
experiments with Ceph.
I am thinking of for example Odroid-C1 or Odroid-XU3 Lite or maybe
something with a low-power Intel x64/x86 processor. Together with one SSD
or one low power HDD the node could get all power via PoE (via splitter or
integrated into board if such boards exist). PoE provide remote power-on
power-off even for consumer grade nodes.
The cost for a single low power node should be able to compete with
traditional PC-servers price per disk. Ceph take care of redundancy.
I think simple custom casing should be good enough - maybe just strap or
velcro everything on trays in the rack, at least for the nodes with SSD.
Kind regards,
--
Jerker Nyberg, Uppsala, Sweden.
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