Hi Christian, currently we do get good discounts as an University and the bundles were worth it. The chassis do have multiple PSUs and n 10Gb Ports (40Gb is possible). The switch connection is redundant. Cuurrently we think of 10 SATA OSD nodes + x SSD Cache Pool Nodes and 5 MONs. For a start. The main focus with the blaids would be spacesaving in the rack. Till now I dont have any prize, but that woucld count to in our decision :) Thanks and regards . Götz Am 12.05.15 um 14:50 schrieb Christian Balzer: > > Hello, > > I'm not familiar with Cisco UCS gear (can you cite exact models?), > but somehow the thought of buying compute gear from Cisco makes me think of > having too much money or very steep discounts. ^o^ > > That said, I presume the chassis those blades are in have redundancy in > terms of PSUs (we always have at least 2 independent power circuits per > rack) and outside connectivity. > So from where I'm standing (I have deployed plenty of SuperMicro > MicroCloud chassis/blades) I'd consider the blade a PoF and be done. > > What I would do (remembering the scale of your planned deployment) is to > go with one dedicated MON that will be the primary (lowest IP) 99.8% of > the time and 4 OSDs with MONs on them. If you want to feel extra good > about this, give those OSDs a bit more CPU/RAM and most of all fast SSDs > for the OS (/var/lib/ceph). > > Christian > > On Tue, 12 May 2015 14:30:58 +0200 Götz Reinicke - IT Koordinator wrote: > >> Hi, >> >> we have some space in our two blade chassis, so I was thinking of the >> pros and cons of using some blades as MONs. I thought about five MONs. >> >> Pro: space saving in our rack >> Con: "just" two blade centers. Two points of failures. >> >> From the redundndency POV I'd go with standalone servers, but space >> could be a bit of a problem currently .... >> >> Waht do you think? >> >> Regards . Götz > > -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 82 420 E-Mail goetz.reinicke@xxxxxxxxxxxxxxx Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzender des Aufsichtsrats: Jürgen Walter MdL Staatssekretär im Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg Geschäftsführer: Prof. Thomas Schadt
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