We are getting ready to put the Quantas into production. We looked at the Supermico Atoms (we have 6 of them), the rails were crap (they exploded the first time you pull the server out, and they stick out of the back of the cabinet about 8 inches, these boxes are already very deep), we also ran out of CPU on these boxes and had limited PCI I/O). They may work fine for really cold data. It may also work fine with XIO and Infiniband. The Atoms still had pretty decent performance given these limitations. The Quantas removed some of the issues with NUMA, had much better PCI I/O bandwidth, comes with a 10 Gb NIC on board. The biggest drawback is that 8 drives is on a SAS controller and 4 drives are on a SATA controller, plus SATADOM and a free port. So you have to manage two different controller types and speeds (6Gb SAS and 3Gb SATA). I'd say neither is perfect, but we decided on Quanta in the end. On Mon, Apr 13, 2015 at 5:17 AM, Jerker Nyberg <jerker@xxxxxxxxxxxx> wrote: > > 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. >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users@xxxxxxxxxxxxxx >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >> > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |